Trosolwyg
Links
Research Group: Inorganic Chemistry
Research Interests
- Development of new ligand frameworks for application in coordination chemistry and homogeneous catalysis
- Phosphacyclic chemistry particularly the design and synthesis of structurally elaborate polycyclic phosphines as novel ligands
- Chiral metal complexes
- Rigid bicyclic N-heterocyclic carbenes with secondary donors as supporting ligands for high oxidation state metal centes
- Asymmetric transition metal catalysed oxidations
Most of our work encompasses aspects of synthetic organic, inorganic and organometallic chemistry with an emphasis on preparing new ligands and exploring their coordination chemistry and deployment in homogeneous catalysis. Inherently chiral phosphines and N-heterocyclic carbenes (NHCs) are of particular interest as discussed under the $acirc; research$acirc; tab above.
For more information, click on the 'Research' tab above.
Teaching
CH3102 Foundations of Inorganic Chemistry
CH3408 Modern Catalytic Processes
CHT215 Key skills in catalysis
Cyhoeddiad
2021
- Jerwood, K., Lowy, P., Deeming, L., Kariuki, B. M. and Newman, P. D. 2021. Remote control: stereoselective coordination of electron-deficient 2,2′-bipyridine ligands to Re(i) and Ir(iii) cores. Dalton Transactions 50(45), pp. 16459-16463. (10.1039/D1DT02928B)
- Sharma, G., Newman, P. D. and Platts, J. A. 2021. A review of quantum chemical studies of frustrated Lewis pairs. Journal of Molecular Graphics and Modelling 105, article number: 107846. (10.1016/j.jmgm.2021.107846)
- Dasgupta, A., Thiehoff, C., Newman, P. D., Wirth, T. and Melen, R. L. 2021. Reactions promoted by hypervalent iodine reagents and boron Lewis acids. Organic and Biomolecular Chemistry 19(22), pp. 4852-4865. (10.1039/D1OB00740H)
- Kariuki, B. M., Platts, J. A. and Newman, P. D. 2021. A hybrid bipy–NHC ligand for the construction of group 11 mixed-metal bimetallic complexes. RSC Advances 11(54), pp. 34170-34173. (10.1039/D1RA06581E)
2020
- Sharma, G., Newman, P. D., Melen, R. and Platts, J. A. 2020. Computational design of an intramolecular frustrated Lewis pair catalyst for enantioselective hydrogenation. Journal of Theoretical and Computational Chemistry 19, article number: 2. (10.1142/S0219633620500091)
- Willcox, D., Carden, J. L., Ruddy, A. J., Newman, P. D. and Melen, R. L. 2020. Asymmetric ketone hydroboration catalyzed by alkali metal complexes derived from BINOL ligands. Dalton Transactions 49(8), pp. 2417-2420. (10.1039/D0DT00232A)
2019
- Sampford, K. R. et al. 2019. Twisting the arm: structural constraints in bicyclic expanded-ring N-heterocyclic carbenes. Dalton Transactions, pp. -. (10.1039/C8DT04462G)
2018
- Edwards, P. G., Newman, P. . D., Kariuki, B., Liyanage, S., Pothupitiya, T., Wickramatunga, L. and Chevalier, E. 2018. Halide and substituent dependent structural variation in copper(I) halide complexes of 1,5,9-triphosphacyclododecanes. Dalton Transactions 47(45), pp. 16126-16131. (10.1039/C8DT03072C)
- Soltani, Y., Adams, S. J., Boerger, J., Wilkins, L. C., Newman, P. D., Pope, S. J. A. and Melen, R. L. 2018. Synthesis and photophysical properties of imine borane adducts towards vapochromic materials. Dalton Transactions 47(36), pp. 12656-12660. (10.1039/C8DT03019G)
- Ruddy, A. J., Ould, D. M. C., Newman, P. D. and Melen, R. L. 2018. Push and pull: the potential role of boron in N2 activation. Dalton Transactions 47(31), pp. 10377-10381. (10.1039/C8DT01168K)
- Kariuki, B. M. and Newman, P. D. 2018. Asymmetric cationic phosphines: synthesis, coordination chemistry, and reactivity. Inorganic Chemistry 57(15), pp. 9554-9563. (10.1021/acs.inorgchem.8b01657)
- Groves, L. M., Ward, B. D., Newman, P. D., Horton, P. N., Coles, S. J. and Pope, S. J. A. 2018. Synthesis and characterisation of fluorescent aminophosphines and their coordination to gold(i). Dalton Transactions 47(28), pp. 9324-9333. (10.1039/C8DT02256A)
- Sebest, F., Dunsford, J. J., Adams, M., Pivot, J., Newman, P. D. and Díez-González, S. 2018. Ring-expanded N-heterocyclic carbenes for copper-mediated azide-alkyne Click cycloaddition reactions. ChemCatChem 10(9), pp. 2041-2045. (10.1002/cctc.201701992)
2017
- Wilkins, L. C., Melen, R. L., Platts, J. A. and Newman, P. D. 2017. Amidine functionalized phosphines: tuneable ligands for transition metals. Dalton Transactions 46(41), pp. 14234-14243. (10.1039/C7DT03343E)
2016
- Lam, J. et al. 2016. Chiral carbene–borane adducts: precursors for borenium catalysts for asymmetric FLP hydrogenations. Dalton Transactions 45(39), pp. 15303-15316. (10.1039/C6DT02202B)
- Bouché, M., Mordan, M., Kariuki, B., Coles, S. J., Christensen, J. and Newman, P. 2016. Mono- and dimeric complexes of an asymmetric heterotopic P,CNHC,pyr ligand. Dalton Trans. (10.1039/C6DT02476A)
- Cox, K., Kariuki, B., Smyth, A. and Newman, P. D. 2016. N2S2 and N4S4 precursors to PS2 macrocycles and cyclic amidinium salts. Dalton Transactions 45, pp. 8485-8493. (10.1039/C6DT00806B)
2015
- Wilkins, L. et al. 2015. Pathways to functionalized heterocycles: propargyl rearrangement using B(C6F5)3. Organometallics 34(21), pp. 5298-5309. (10.1021/acs.organomet.5b00753)
2014
- Edwards, P. G., Kariuki, B., Newman, P. D. and Zhang, W. 2014. Peripheral methyl activation in η4-1,2,3,4-tetramethylcyclobutadienylcobalt complexes: template synthesis and subsequent reactivity of triphosphamacrocycles. Organometallics 33(19), pp. 5440-5447. (10.1021/om500734b)
- Edwards, P. G., Kariuki, B., Newman, P. D., Tallis, H. A. and Williams, C. 2014. Aspects of the coordination chemistry of rac-trans-1,2-diphosphinocyclohexane and the preparation of reinforced 9aneP3and 9anePN2macrocycles. Dalton Transactions 43(41), pp. 15532-15545. (10.1039/C4DT02239D)
- Edwards, P. G., Mahon, M. F., Newman, P. D., Reixach, E. and Zhang, W. 2014. Manganese(i) templates for the construction of benzannulated triphosphamacrocycles. Dalton Transactions 43, pp. 15646-15655. (10.1039/C4DT02203C)
- Kariuki, B., Platts, J. A. and Newman, P. D. 2014. It's all about Me: methyl-induced control of coordination stereochemistry by a flexible tridentate N,C,N′ ligand. Dalton Transactions 43(7), pp. 2971-2978. (10.1039/c3dt52841c)
2012
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Variable coordination of a chiral diphosphine containing an amidinium/NHC group within its backbone: μ-P,P′, κ2-P,P′ and κ3-P,C,P′ coordination modes. Dalton Transactions 41(40), pp. 12395-12407. (10.1039/c2dt31475d)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Monovalent chiral-at-copper complexes: halide-controlled diastereoselectivity. Chemical Communications 48(52), pp. 6511-6513. (10.1039/c2cc33036a)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Monovalent chiral-at-copper complexes: halide-controlled diastereoselectivity. Chemical Communications 48(52), pp. 6511-6513. (10.1039/c2cc33036a)
2011
- Edwards, P. G., Kariuki, B., Limon, M. D., Ooi, L., Platts, J. A. and Newman, P. D. 2011. Metal complexes of a structurally embellished phosphinane ligand: an assessment of stereoelectronic effects. European Journal of Inorganic Chemistry 2011(8), pp. 1230-1239. (10.1002/ejic.201001170)
- Newman, P. D., Cavell, K. J., Hallett, A. J. and Kariuki, B. 2011. Rhodium and iridium complexes of an asymmetric bicyclic NHC bearing secondary pyridyl donors. Dalton Transactions 40(35), pp. 8807-8813. (10.1039/C1DT10582E)
- Albers, T., Baker (neé Johnstone), J., Coles, S. J., Edwards, P. G., Kariuki, B. and Newman, P. D. 2011. Iron(ii) template synthesis of benzannulated triphospha- and triarsamacrocycles. Dalton Transactions 40(37), pp. 9525-9532. (10.1039/c0dt01724h)
- Edwards, P. G., Newman, P. D. and Stasch, A. 2011. Coordination chemistry of an asymmetric P,N,O tridentate ligand containing primary phosphine, amine and alcohol donors. Journal of Organometallic Chemistry 696(8), pp. 1652-1658. (10.1016/j.jorganchem.2011.01.031)
- Edwards, P. G., Kariuki, B. and Newman, P. D. 2011. Coordination behaviour in transition metal complexes of asymmetric NPN ligands. Polyhedron 30(6), pp. 935-941. (10.1016/j.poly.2010.12.029)
2010
- Coleman, D. L., Edwards, P. G., Kariuki, B. and Newman, P. D. 2010. Coordination chemistry of cis,cis and trans,trans 1,1'-[1,2-phenylenebis(methylene)]bis(2,2,3,4,4-pentamethylphosphetane). Dalton Transactions 39(16), pp. 3842-3850. (10.1039/b924982f)
- Edwards, P. G., Knight, J. C. and Newman, P. D. 2010. Synthesis of (1R,4S,6R)-5,5,6-trimethyl-2-phosphabicyclo[2.2.2]octane and derivatives. Dalton Transactions 39(16), pp. 3851-3860. (10.1039/b924983d)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2010. Metal complexes of chiral NHCs containing a fused six- and seven-membered central ring. Organometallics 29(12), pp. 2724-2734. (10.1021/om1002107)
2009
- Kaufhold, O., Stasch, A., Pape, T., Hepp, A., Edwards, P. G., Newman, P. D. and Hahn, F. E. 2009. Metal template controlled formation of [11]ane-P2CNHC macrocycles. Journal of the American Chemical Society 131(1), pp. 306-317. (10.1021/ja807333f)
- Edwards, P. G., Hahn, F. E., Limon, M., Newman, P. D., Kariuki, B. and Stasch, A. 2009. Manganese complexes of phosphino-mu-phosphido ligands. Dalton Transactions(26), pp. 5115-5119. (10.1039/b822870a)
- Wallis, C., Edwards, P. G., Hanton, M., Newman, P. D., Stasch, A., Jones, C. and Tooze, R. P. 2009. Coordination chemistry of 2,6-dixylyl-4-phenylphosphabarrelene with selected transition metals. Dalton Transactions(12), pp. 2170-2177. (10.1039/b816499a)
- Wallis, C., McGuinness, D., Newman, P. D., Tooze, R. P. and Edwards, P. G. 2009. Tungsten(0) and rhodium(I) complexes of a series of 2-(2 '-halo)triarylphosphinines. Dalton Transactions(12), pp. 2178-2184. (10.1039/b816507f)
2008
- Tallis, H. A., Newman, P. D., Edwards, P. G., Ooi, L. and Stasch, A. 2008. 1-Trimethylsilylphosphirane as a ligand and as a stable masked reagent for phosphirane. Dalton Transactions 2008(1), pp. 47-53. (10.1039/b715327a)
2006
- Battle, A. R., Edwards, P. G., Haigh, R., Hibbs, D. E., Li, D., Liddiard, S. M. and Newman, P. D. 2006. Synthesis and characterization of iron(II) complexes of 10- and 11-membered triphosphamacrocycles. Organometallics 26(2), pp. 377-386. (10.1021/om060798g)
- Edwards, P. G., Haigh, R., Li, D. and Newman, P. D. 2006. Template synthesis of 1,4,7-triphosphacyclononanes. Journal of the American Chemical Society 128(11), pp. 3818-3830. (10.1021/ja0578956)
2000
- Dervisi, A., Edwards, P. G., Newman, P. D. and Tooze, R. P. 2000. Synthesis and chemistry of diphenyl-2-pyridylphosphine complexes of palladium(0). X-Ray characterisation of Pd(Ph2Ppy)2(?2-DMAD) and trans-Pd(Ph2Ppy)2(PhC?CH2)(CF3CO2). Journal of the Chemical Society, Dalton Transactions 2000(4), pp. 523-528. (10.1039/a908050c)
1999
- Dervisi, A., Edwards, P. G., Newman, P. D., Tooze, R. P., Coles, S. J. and Hursthouse, M. B. 1999. Comments on the catalytic alkoxycarbonylation of alkynes. Journal of the Chemical Society. Dalton Transactions 1999(7), pp. 1113-1120. (10.1039/a809624d)
1998
- Newman, P. D., Campbell, R. A., Tooze, R. P., Eastham, G. R., Thorpe, J. M. and Edwards, P. G. 1998. Process for the preparation of bisphosphines. GB/9805348 [Patent].
Erthyglau
- Jerwood, K., Lowy, P., Deeming, L., Kariuki, B. M. and Newman, P. D. 2021. Remote control: stereoselective coordination of electron-deficient 2,2′-bipyridine ligands to Re(i) and Ir(iii) cores. Dalton Transactions 50(45), pp. 16459-16463. (10.1039/D1DT02928B)
- Sharma, G., Newman, P. D. and Platts, J. A. 2021. A review of quantum chemical studies of frustrated Lewis pairs. Journal of Molecular Graphics and Modelling 105, article number: 107846. (10.1016/j.jmgm.2021.107846)
- Dasgupta, A., Thiehoff, C., Newman, P. D., Wirth, T. and Melen, R. L. 2021. Reactions promoted by hypervalent iodine reagents and boron Lewis acids. Organic and Biomolecular Chemistry 19(22), pp. 4852-4865. (10.1039/D1OB00740H)
- Kariuki, B. M., Platts, J. A. and Newman, P. D. 2021. A hybrid bipy–NHC ligand for the construction of group 11 mixed-metal bimetallic complexes. RSC Advances 11(54), pp. 34170-34173. (10.1039/D1RA06581E)
- Sharma, G., Newman, P. D., Melen, R. and Platts, J. A. 2020. Computational design of an intramolecular frustrated Lewis pair catalyst for enantioselective hydrogenation. Journal of Theoretical and Computational Chemistry 19, article number: 2. (10.1142/S0219633620500091)
- Willcox, D., Carden, J. L., Ruddy, A. J., Newman, P. D. and Melen, R. L. 2020. Asymmetric ketone hydroboration catalyzed by alkali metal complexes derived from BINOL ligands. Dalton Transactions 49(8), pp. 2417-2420. (10.1039/D0DT00232A)
- Sampford, K. R. et al. 2019. Twisting the arm: structural constraints in bicyclic expanded-ring N-heterocyclic carbenes. Dalton Transactions, pp. -. (10.1039/C8DT04462G)
- Edwards, P. G., Newman, P. . D., Kariuki, B., Liyanage, S., Pothupitiya, T., Wickramatunga, L. and Chevalier, E. 2018. Halide and substituent dependent structural variation in copper(I) halide complexes of 1,5,9-triphosphacyclododecanes. Dalton Transactions 47(45), pp. 16126-16131. (10.1039/C8DT03072C)
- Soltani, Y., Adams, S. J., Boerger, J., Wilkins, L. C., Newman, P. D., Pope, S. J. A. and Melen, R. L. 2018. Synthesis and photophysical properties of imine borane adducts towards vapochromic materials. Dalton Transactions 47(36), pp. 12656-12660. (10.1039/C8DT03019G)
- Ruddy, A. J., Ould, D. M. C., Newman, P. D. and Melen, R. L. 2018. Push and pull: the potential role of boron in N2 activation. Dalton Transactions 47(31), pp. 10377-10381. (10.1039/C8DT01168K)
- Kariuki, B. M. and Newman, P. D. 2018. Asymmetric cationic phosphines: synthesis, coordination chemistry, and reactivity. Inorganic Chemistry 57(15), pp. 9554-9563. (10.1021/acs.inorgchem.8b01657)
- Groves, L. M., Ward, B. D., Newman, P. D., Horton, P. N., Coles, S. J. and Pope, S. J. A. 2018. Synthesis and characterisation of fluorescent aminophosphines and their coordination to gold(i). Dalton Transactions 47(28), pp. 9324-9333. (10.1039/C8DT02256A)
- Sebest, F., Dunsford, J. J., Adams, M., Pivot, J., Newman, P. D. and Díez-González, S. 2018. Ring-expanded N-heterocyclic carbenes for copper-mediated azide-alkyne Click cycloaddition reactions. ChemCatChem 10(9), pp. 2041-2045. (10.1002/cctc.201701992)
- Wilkins, L. C., Melen, R. L., Platts, J. A. and Newman, P. D. 2017. Amidine functionalized phosphines: tuneable ligands for transition metals. Dalton Transactions 46(41), pp. 14234-14243. (10.1039/C7DT03343E)
- Lam, J. et al. 2016. Chiral carbene–borane adducts: precursors for borenium catalysts for asymmetric FLP hydrogenations. Dalton Transactions 45(39), pp. 15303-15316. (10.1039/C6DT02202B)
- Bouché, M., Mordan, M., Kariuki, B., Coles, S. J., Christensen, J. and Newman, P. 2016. Mono- and dimeric complexes of an asymmetric heterotopic P,CNHC,pyr ligand. Dalton Trans. (10.1039/C6DT02476A)
- Cox, K., Kariuki, B., Smyth, A. and Newman, P. D. 2016. N2S2 and N4S4 precursors to PS2 macrocycles and cyclic amidinium salts. Dalton Transactions 45, pp. 8485-8493. (10.1039/C6DT00806B)
- Wilkins, L. et al. 2015. Pathways to functionalized heterocycles: propargyl rearrangement using B(C6F5)3. Organometallics 34(21), pp. 5298-5309. (10.1021/acs.organomet.5b00753)
- Edwards, P. G., Kariuki, B., Newman, P. D. and Zhang, W. 2014. Peripheral methyl activation in η4-1,2,3,4-tetramethylcyclobutadienylcobalt complexes: template synthesis and subsequent reactivity of triphosphamacrocycles. Organometallics 33(19), pp. 5440-5447. (10.1021/om500734b)
- Edwards, P. G., Kariuki, B., Newman, P. D., Tallis, H. A. and Williams, C. 2014. Aspects of the coordination chemistry of rac-trans-1,2-diphosphinocyclohexane and the preparation of reinforced 9aneP3and 9anePN2macrocycles. Dalton Transactions 43(41), pp. 15532-15545. (10.1039/C4DT02239D)
- Edwards, P. G., Mahon, M. F., Newman, P. D., Reixach, E. and Zhang, W. 2014. Manganese(i) templates for the construction of benzannulated triphosphamacrocycles. Dalton Transactions 43, pp. 15646-15655. (10.1039/C4DT02203C)
- Kariuki, B., Platts, J. A. and Newman, P. D. 2014. It's all about Me: methyl-induced control of coordination stereochemistry by a flexible tridentate N,C,N′ ligand. Dalton Transactions 43(7), pp. 2971-2978. (10.1039/c3dt52841c)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Variable coordination of a chiral diphosphine containing an amidinium/NHC group within its backbone: μ-P,P′, κ2-P,P′ and κ3-P,C,P′ coordination modes. Dalton Transactions 41(40), pp. 12395-12407. (10.1039/c2dt31475d)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Monovalent chiral-at-copper complexes: halide-controlled diastereoselectivity. Chemical Communications 48(52), pp. 6511-6513. (10.1039/c2cc33036a)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Monovalent chiral-at-copper complexes: halide-controlled diastereoselectivity. Chemical Communications 48(52), pp. 6511-6513. (10.1039/c2cc33036a)
- Edwards, P. G., Kariuki, B., Limon, M. D., Ooi, L., Platts, J. A. and Newman, P. D. 2011. Metal complexes of a structurally embellished phosphinane ligand: an assessment of stereoelectronic effects. European Journal of Inorganic Chemistry 2011(8), pp. 1230-1239. (10.1002/ejic.201001170)
- Newman, P. D., Cavell, K. J., Hallett, A. J. and Kariuki, B. 2011. Rhodium and iridium complexes of an asymmetric bicyclic NHC bearing secondary pyridyl donors. Dalton Transactions 40(35), pp. 8807-8813. (10.1039/C1DT10582E)
- Albers, T., Baker (neé Johnstone), J., Coles, S. J., Edwards, P. G., Kariuki, B. and Newman, P. D. 2011. Iron(ii) template synthesis of benzannulated triphospha- and triarsamacrocycles. Dalton Transactions 40(37), pp. 9525-9532. (10.1039/c0dt01724h)
- Edwards, P. G., Newman, P. D. and Stasch, A. 2011. Coordination chemistry of an asymmetric P,N,O tridentate ligand containing primary phosphine, amine and alcohol donors. Journal of Organometallic Chemistry 696(8), pp. 1652-1658. (10.1016/j.jorganchem.2011.01.031)
- Edwards, P. G., Kariuki, B. and Newman, P. D. 2011. Coordination behaviour in transition metal complexes of asymmetric NPN ligands. Polyhedron 30(6), pp. 935-941. (10.1016/j.poly.2010.12.029)
- Coleman, D. L., Edwards, P. G., Kariuki, B. and Newman, P. D. 2010. Coordination chemistry of cis,cis and trans,trans 1,1'-[1,2-phenylenebis(methylene)]bis(2,2,3,4,4-pentamethylphosphetane). Dalton Transactions 39(16), pp. 3842-3850. (10.1039/b924982f)
- Edwards, P. G., Knight, J. C. and Newman, P. D. 2010. Synthesis of (1R,4S,6R)-5,5,6-trimethyl-2-phosphabicyclo[2.2.2]octane and derivatives. Dalton Transactions 39(16), pp. 3851-3860. (10.1039/b924983d)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2010. Metal complexes of chiral NHCs containing a fused six- and seven-membered central ring. Organometallics 29(12), pp. 2724-2734. (10.1021/om1002107)
- Kaufhold, O., Stasch, A., Pape, T., Hepp, A., Edwards, P. G., Newman, P. D. and Hahn, F. E. 2009. Metal template controlled formation of [11]ane-P2CNHC macrocycles. Journal of the American Chemical Society 131(1), pp. 306-317. (10.1021/ja807333f)
- Edwards, P. G., Hahn, F. E., Limon, M., Newman, P. D., Kariuki, B. and Stasch, A. 2009. Manganese complexes of phosphino-mu-phosphido ligands. Dalton Transactions(26), pp. 5115-5119. (10.1039/b822870a)
- Wallis, C., Edwards, P. G., Hanton, M., Newman, P. D., Stasch, A., Jones, C. and Tooze, R. P. 2009. Coordination chemistry of 2,6-dixylyl-4-phenylphosphabarrelene with selected transition metals. Dalton Transactions(12), pp. 2170-2177. (10.1039/b816499a)
- Wallis, C., McGuinness, D., Newman, P. D., Tooze, R. P. and Edwards, P. G. 2009. Tungsten(0) and rhodium(I) complexes of a series of 2-(2 '-halo)triarylphosphinines. Dalton Transactions(12), pp. 2178-2184. (10.1039/b816507f)
- Tallis, H. A., Newman, P. D., Edwards, P. G., Ooi, L. and Stasch, A. 2008. 1-Trimethylsilylphosphirane as a ligand and as a stable masked reagent for phosphirane. Dalton Transactions 2008(1), pp. 47-53. (10.1039/b715327a)
- Battle, A. R., Edwards, P. G., Haigh, R., Hibbs, D. E., Li, D., Liddiard, S. M. and Newman, P. D. 2006. Synthesis and characterization of iron(II) complexes of 10- and 11-membered triphosphamacrocycles. Organometallics 26(2), pp. 377-386. (10.1021/om060798g)
- Edwards, P. G., Haigh, R., Li, D. and Newman, P. D. 2006. Template synthesis of 1,4,7-triphosphacyclononanes. Journal of the American Chemical Society 128(11), pp. 3818-3830. (10.1021/ja0578956)
- Dervisi, A., Edwards, P. G., Newman, P. D. and Tooze, R. P. 2000. Synthesis and chemistry of diphenyl-2-pyridylphosphine complexes of palladium(0). X-Ray characterisation of Pd(Ph2Ppy)2(?2-DMAD) and trans-Pd(Ph2Ppy)2(PhC?CH2)(CF3CO2). Journal of the Chemical Society, Dalton Transactions 2000(4), pp. 523-528. (10.1039/a908050c)
- Dervisi, A., Edwards, P. G., Newman, P. D., Tooze, R. P., Coles, S. J. and Hursthouse, M. B. 1999. Comments on the catalytic alkoxycarbonylation of alkynes. Journal of the Chemical Society. Dalton Transactions 1999(7), pp. 1113-1120. (10.1039/a809624d)
Patentau
- Newman, P. D., Campbell, R. A., Tooze, R. P., Eastham, G. R., Thorpe, J. M. and Edwards, P. G. 1998. Process for the preparation of bisphosphines. GB/9805348 [Patent].
- Kariuki, B., Platts, J. A. and Newman, P. D. 2014. It's all about Me: methyl-induced control of coordination stereochemistry by a flexible tridentate N,C,N′ ligand. Dalton Transactions 43(7), pp. 2971-2978. (10.1039/c3dt52841c)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Variable coordination of a chiral diphosphine containing an amidinium/NHC group within its backbone: μ-P,P′, κ2-P,P′ and κ3-P,C,P′ coordination modes. Dalton Transactions 41(40), pp. 12395-12407. (10.1039/c2dt31475d)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2012. Monovalent chiral-at-copper complexes: halide-controlled diastereoselectivity. Chemical Communications 48(52), pp. 6511-6513. (10.1039/c2cc33036a)
- Edwards, P. G., Kariuki, B., Limon, M. D., Ooi, L., Platts, J. A. and Newman, P. D. 2011. Metal complexes of a structurally embellished phosphinane ligand: an assessment of stereoelectronic effects. European Journal of Inorganic Chemistry 2011(8), pp. 1230-1239. (10.1002/ejic.201001170)
- Newman, P. D., Cavell, K. J., Hallett, A. J. and Kariuki, B. 2011. Rhodium and iridium complexes of an asymmetric bicyclic NHC bearing secondary pyridyl donors. Dalton Transactions 40(35), pp. 8807-8813. (10.1039/C1DT10582E)
- Edwards, P. G., Newman, P. D. and Stasch, A. 2011. Coordination chemistry of an asymmetric P,N,O tridentate ligand containing primary phosphine, amine and alcohol donors. Journal of Organometallic Chemistry 696(8), pp. 1652-1658. (10.1016/j.jorganchem.2011.01.031)
- Edwards, P. G., Knight, J. C. and Newman, P. D. 2010. Synthesis of (1R,4S,6R)-5,5,6-trimethyl-2-phosphabicyclo[2.2.2]octane and derivatives. Dalton Transactions 39(16), pp. 3851-3860. (10.1039/b924983d)
- Newman, P. D., Cavell, K. J. and Kariuki, B. 2010. Metal complexes of chiral NHCs containing a fused six- and seven-membered central ring. Organometallics 29(12), pp. 2724-2734. (10.1021/om1002107)
- Kaufhold, O., Stasch, A., Pape, T., Hepp, A., Edwards, P. G., Newman, P. D. and Hahn, F. E. 2009. Metal template controlled formation of [11]ane-P2CNHC macrocycles. Journal of the American Chemical Society 131(1), pp. 306-317. (10.1021/ja807333f)
- Tallis, H. A., Newman, P. D., Edwards, P. G., Ooi, L. and Stasch, A. 2008. 1-Trimethylsilylphosphirane as a ligand and as a stable masked reagent for phosphirane. Dalton Transactions 2008(1), pp. 47-53. (10.1039/b715327a)
- Edwards, P. G., Haigh, R., Li, D. and Newman, P. D. 2006. Template synthesis of 1,4,7-triphosphacyclononanes. Journal of the American Chemical Society 128(11), pp. 3818-3830. (10.1021/ja0578956)
Ymchwil
Phosphacycles
Unlike acyclic phosphines and azacycles, the coordination chemistry of cyclic phosphines (phosphacycles) is relatively poorly developed. We are interested in the synthesis of innately asymmetric, structurally elaborate phosphines derived from readily available $acirc; chiral pool$acirc; precursors. The structure of one such ligand (phenop) is shown below. Phenop has eight stereogenic carbon centres (four of which derive from the camphor starting material and four of which are generated stereoselectively during the synthesis) and a pseudo-chiral phosphorus. Phenop forms numerous complexes with a range of transition metals in various oxidation states and undergoes facile cyclometallation (internal C-H activation) with Pd(II) and Pt(II) to give P,C chelates as shown in 2. The observed cyclometallation is unusual for two reasons: firstly the activated C-H bond is of an alkyl type rather than the more common aryl; and secondly, the actual site of C-H activation depends on the nature of the metal precursor. For example the use of Na2[PdCl4] gives the complex 1 whereas palladium(II) acetate produces 2.


We are also interested in other fused cyclic systems, a bicyclic example of which is shown in 3 together with a bidentate derivative (4) and the molecular structure of its complex with Mo(CO)4.


Fused expanded-ring NHCs
N-heterocyclic carbenes (NHCs) have achieved great prominence in recent years as ligands of outstanding promise and application in coordination chemistry and homogeneous catalysis. NHCs where the constituent heterocyclic ring(s) is >5 membered are referred to as expanded-ring derivatives and they possess unusual properties such as increased basicity / nucleophilicity and enhanced sterics that may lead to novel reactivity in their metal complexes. We (together with Prof Cavell) are interested in fused 6/7-membered NHCs with exo-cyclic N-substituents containing other potential donors such as those derived from azolium salts of the type shown below (5). The N,N$acirc; -dipyridyl derivative of 5 undergoes room temperature oxidative addition to Ni(1,5-COD)2 to give the pincer complex shown in the figure below. This is unusual chemistry for expanded-ring azolium salts which do not tend to undergo oxidative addition as readily as 5-membered NHCs.

Addysgu
CH3102 Foundations of Inorganic Chemistry
CH3408 Modern Catalytic Processes
CHT215 Key skills in catalysis
Bywgraffiad
MSc (1988, R. D. Gillard) and PhD (1991, P. A. Williams), University of Wales Cardiff. Post -doctoral research associate, University of Wales Cardiff (1991-2, R. D. Gillard), University of Glasgow (1993-96, R. D. Peacock and R. J. Cross), Cardiff University (1997-2002, P. G. Edwards). Appointed Cardiff University Research Fellow 2002 and Cardiff Catalysis Institute (CCI) research officer (2009).