Research Guides

Department of Chemistry University of Oxford

Professor P. Mountford

Organometallic Chemistry and Catalysis

Our research group is an international mixture of postdoctoral research assistants, DPhil students,  Oxford Masters (Part II) students, and visiting students and academics. We are working on the synthesis and stoichiometric and catalytic chemistry of organometallic compounds of the transition and lanthanide metals.  Please visit the Mountford Group web site for full details, including the latest news from the group, who we are and what we do, along with details of how to join the group. To arrange a visit or to discuss research opportunities please Email Philip Mountford.

Here are some selected recent publications, including graphical summaries, arranged according to research theme. For a complete publication list and further details of our research click here to visit our group web site.

(1) Synthesis and reactions of compounds with metal-ligand multiple bonds and unusual metal-metal bonds

New scandium borylimido chemistry: synthesis, bonding and reactivity. B. A. Clough, S. Mellino, E. Clot and P. Mountford, J. Am. Chem. Soc., 2017, 139, DOI: 10.1021/jacs.7b05405. [link to journal]

Reactions of titanium hydrazides with silanes and boranes: N–N bond cleavage and N atom functionalization. L. C. Stevenson, S. Mellino, E. Clot and P. Mountford, J. Am. Chem. Soc., 2015, 137, 10140–10143. [link to journal]

A remarkable switch from a diamination to a hydrohydrazination catalyst and observation of an unprecedented catalyst resting state. A. D. Schwarz, C. S. Onn and P. Mountford, Angew. Chem. Int. Ed., 2012, 51, 12298-12302. [link to journal].

The first Group 4 metal bis(imido) and tris(imido) complexes. A. D. Schwarz, A. J. Nielson, N. Kaltsoyannis and P. Mountford, Chemical Science, 2012, 3, 819-824. [link to journal]

Titanium alkoxyimido (Ti=N-OR) complexes: reductive N-O bond cleavage at the boundary between hydrazide and peroxide ligands.  A. D. Schwarz, A. Nova, E. Clot and P. Mountford, Chem. Commun., 2011, 47, 4926–4928. [link to journal].

Si-H and Si-Cl bond activation of titanium hydrazides with silanes and subsequent Ti-H / E-H (E = Si or H) sigma bond metathesis. P. J. Tiong, A. Nova, E. Clot and P. Mountford, Chem. Commun., 2011, 47, 3147-3149. [link to journal].

M=N cycloaddition and N-N insertion in the reactions of titanium hydrazido compounds with alkynes: a combined experimental and computational study. A. D. Schofield, A. Nova, J. D. Selby, C. D. Manley, A. D. Schwarz, E. Clot and P. Mountford, J. Am. Chem. Soc., 2010, 132, 10484-10497. [link to journal].

(2) Synthesis and reactions of compounds with unusual metal-metal and metal-element bonds

Probing the limits of alkaline earth–transition metal bonding: an experimental and computational study. M. P. Blake, N. Kaltsoyannis and P. Mountford, J. Am. Chem. Soc., 2015, 137, 12352−12368. [link to journal]

Synthesis, molecular and electronic structure, and reactions of a Zn–Hg–Zn bonded complex. M. P. Blake, N. Kaltsoyannis and P. Mountford, Chem. Commun., 2015, 51, 5743-5746. [link to journal]. Highlighted in the RSC magazine Chemistry World, 2015, 12, 4. [link]

Stable MX2 radicals (M = Ga, In, Tl). A. V. Protchenko, D. Dange, J. R. Harmer, C. Y. Tang, A. D. Schwarz, M. J. Kelly, N. Phillips, R. Tirfoin, K. H. Birjkumar, C. Jones, N. Kaltsoyannis, P. Mountford and S. Aldridge, Nature Chem., 2014, 6, 515-319. [link to journal]

Synthesis and reactions of beta-diketiminate-supported complexes with Mg Fe or Yb-Fe bonds. M. P. Blake, N. Kaltsoyannis and, P. Mountford,  Chem. Commun., 2013, 49, 3315-3317. [link to journal]

Group 3 and lanthanide boryl compounds: syntheses, structures and bonding analyses of Sc–B, Y–B and Lu–B sigma-coordinated NHC analogues. L. M. A. Saleh, K. H. Birjkumar, A. V. Protchenko, A. D. Schwarz, S. Aldridge, C. Jones, N. Kaltsoyannis, and P. Mountford, J. Am. Chem. Soc. 2011, 133, 3836-3839. [link to journal]

Contrasting reactivity of anionic boron- and gallium-containing NHC analogues: E-C vs.M-E bond formation (E = B, Ga). A. V. Protchenko, L. M. A. Saleh, D. Vidovic, D. Dange, C. Jones, P. Mountford and S. Aldridge, Chem. Commun., 2010, 46, 8546-8548. Designated a "hot article" by the Editor. [link to journal].

          

(3) Synthesis and polymerisation studies of new catalysts for the preparation of polyolefin and poly(lactide) materials

Monometallic and bimetallic titanium κ1-amidinate complexes as olefin polymerization catalysts. R. A. Collins, A. F. Russell, R. T. W. Scott, R. Bernardo, G. H. J. van Doremaele, A. Berthoud and P. Mountford, Organometallics, 2017, 36, 2167-2181. [link to journal]

Bis(phenolate)amine-supported lanthanide borohydride complexes for styrene and trans-1,4-isoprene (co) polymerisations. F. Bonnet, H. E. Dyer, Y. El Kinani, C. Dietz, P. Roussel, M. Visseaux, P. Zinck and P. Mountford, Dalton Trans., 2015, 44, 12312-12325.  [link to journal]

Synthesis and structures of calcium and strontium 2,4-di-tert-butylphenolates and their reactivity towards the amine co-initiated ring-opening polymerisation of rac-lactide. L. Clark, G. B. Deacon, C. M. Forsyth, P. C. Junk, P. Mountford, J. P. Townley, and J. Wang, Dalton Trans., 2013, 42, 9294-9312. [link to journal]

Synthesis and rac-lactide ring-opening polymerisation studies of new alkaline earth tetrahydroborate complexes. R. A. Collins, J. Unruangsri and P. Mountford, Dalton Trans., 2013, 42, 759-769. Invited contribution for a Special Issue on metal borane and borohydride chemistry. [link to journal].

Cationic and charge-neutral calcium tetrahydroborate complexes and their use in the controlled ring-opening polymerisation of rac-lactide. M. G. Cushion and P. Mountford, Chem. Commun., 2011, 47, 2276-2278. [link to journal].

Ring-opening polymerization of rac-lactide by bis(phenolate)amine-supported samarium borohydride complexes: an experimental and DFT study. H. E. Dyer, S. Huijser, N. Susperregui, F. Bonnet, A. D. Schwarz, R. Duchateau, L. Maron and P. Mountford. Organometallics, 2010, 29, 3602-3621. [link to journal].

Dicationic and zwitterionic catalysts for the amine-initiated, immortal ring-opening polymerisation of rac-lactide: facile synthesis of amine-terminated, highly heterotactic PLA. L. Clark, M. G. Cushion, H. E. Dyer, A. D. Schwarz, R. Duchateau and P. Mountford, Chem. Commun. 2010, 46, 273-275. [link to journal].

Synthesis, solid state and DFT structure and olefin polymerization capability of a unique base-free dimeric methyl titanium dication. E. G. Ijpeij, B. Coussens, M. A. Zuideveld, G. H. J. van Doremaele, P. Mountford, M. Lutz and A. L. Spek, Chem. Commun., 2010, 46, 3339-3341. [link to journal].

AlMe3 and ZnMe2 adducts of a titanium imido methyl cation: a combined crystallographic, spectroscopic and DFT study. P.D. Bolton, E. Clot, A. R. Cowley and P. Mountford, J. Am. Chem. Soc., 2006, 128, 15005-15018. [link to journal].