Publications

2016

Catalytic conversion of methanol/ethanol to isobutanol – a highly selective route to an advanced biofuel

R. L. Wingad,  E. J. E. Bergström, M. Everett, K. J. Pellow,   D. F. Wass, Chem. Commun., 2016, 5202-5204.

 

Zirconium-Catalyzed Imine Hydrogenation via a Frustrated Lewis Pair Mechanism

S. R. FlynnO. J. MettersI. MannersD. F. Wass, Organometallics201635, 847–850.

Robust synthesis of epoxy resin-filled microcapsules for application to self-healing materials

P. Bolimowski, I. P. Bond, D. F. Wass,Phil. Trans. R. Soc. A, 2016, 374, 20150083.

 

Small Molecule Activation by Intermolecular Zr(IV)-Phosphine Frustrated Lewis Pairs

O. J. Metters, S. J. K. Forrest, H. A. Sparkes, I. Manners, and D. F. Wass, J. Am. Chem. Soc., 2016, 138, 1994–2003.

 

Unexpected Formation of Early Late Heterobimetallic Complexes from Transition Metal Frustrated Lewis Pairs

A. M. Chapman, S. R. Flynn, and D. F. Wass, Inorg. Chem., 2016, 55, 1017–1021.

 

2015

Catalytic Conversion of Ethanol to n-Butanol Using Ruthenium P–N Ligand Complexes

R. L. Wingad, P. J. Gates, S. T. G. Street, and D. F. Wass, ACS Catal., 2015, 5, 5822–5826.

 

Optimisation of epoxy blends for use in extrinsic self-healing fibre-reinforced composites

M. T. Everitt, R. Luterbacher,T. S. Coope, R. S. Trask, D. F. Wass, I. P. Bond, Polymer, 2015, 69, 283–292.

 

Synthesis of chelating diamido Sn(IV) compounds from oxidation of Sn(II) and directly from Sn(IV) precursors

S. M. Mansell   C. A. Russell and   D. F. Wass, Dalton Trans., 2015, 44, 9756-9765.

 

Application of a silver–olefin coordination polymer as a catalytic curing agent for self- healing epoxy polymers

D. T. Everitt, T. S. Coope, R. S. Trask, D. F. Wass and I. P. Bond, Smart Mater. Struct. 2015, 24, 055004.

 

Cooperative Lewis Pairs Based on Late Transition Metals: Activation of Small Molecules by Platinum(0) and B(C6F5)3.

Forrest, S. J. K., Clifton, J., Fey, N., Pringle, P. G., Sparkes, H. A. and Wass, D. F. Angew. Chem. Int. Ed., 2015, 54, 2223–2227.

 

Photomodulable phosphines incorporating diarylethene moieties

G. Bianchini,  G. Strukul,  D. F. Wass,  A. Scarso, RSC Adv., 2015, 5, 10795-10798.

 

2014

 

Repeated self-healing of microvascular carbon fibre reinforced polymer composites

T.S. Coope, D. F.  Wass, R. S. Trask, Smart Materials and Structures, 2014, 23, 115002.

 

Generation of aminoborane monomers RR′N=BH2 from amine–boronium cations [RR′NH–BH2L]+: metal catalyst-free formation of polyaminoboranes at ambient temperature

O. J. Metters, A. M. Chapman, A. P. M. Robertson, C. H. Woodall, P. J. Gates, D. F. Wass, I. Manners  Chem. Commun., 2014, 12146-12149

 

Reversible CO Exchange at Platinum(0). An Example of Similar Complex Properties Produced by Ligands with Very Different Stereoelectronic Characteristics

P. G. Pringle, S. Forrest, H. Sparkes, D. F. Wass, Dalton Trans., 2014, 43, 16335-16344.

 

Metal Triflates as Catalytic Curing Agents in Self-Healing Fibre Reinforced Polymer Composite Materials

Coope, T. S., Wass, D. F., Trask, R. S., Bond, I. P. Macromol. Mater. Eng.  2014, 299, 208–218.

 

Cobalt PCP Pincer Complexes via an Unexpected Sequence of Ortho Metalations

Kent, M.A.; Woodall, C. H.; Haddow, M. F.; McMullin, C. L.; Pringle, P.G.; Wass, D.F.; Organometallics, 2014, 33, 5686–5692.

 

2013

Alkene to Carbyne: Tandem Lewis Acid Activation and Dehydrogenation of a Molybdenum Ethylene Complex

Stennett, T. E., Haddow, M. F, Wass, D. F. Angew. Chem. Int. Ed. 2013, 52, 11356 –11359

 

N,N-Diphospholylamines—A New Family of Ligands for Highly Active, Chromium-Based, Selective Ethene Oligomerisation Catalysts

Stennett, T. E., Hey, T. W., Ball, L. T., Flynn, S. R., Radcliffe, J. E., McMullin, C. L., Wingad, R. L;  Wass, D. F.  ChemCatChem. 2013, 5, 2946–2954.

 

Catalytic Conversion of Ethanol into an Advanced Biofuel: Unprecedented Selectivity for n-Butanol

Dowson, G. R. M., Haddow, M. F., Lee, J., Wingad, R. L;  Wass, D. F. Angew. Chem. Int. Ed., 2013, 52, 9005–9008.

 

New Cu(I)-Ethylene Complexes Based on Tridentate Imine Ligands: Synthesis and Structure

Ebrahimpour, P.; Haddow, M.F.; Wass, D. F. Inorg. Chem., 2013, 52, 3765-3771.

 

A New Class of Remote N-Heterocyclic Carbenes with Exceptionally Strong sigma-Donor Properties: Introducing Benzo[c]quinolin-6-ylidene

Mayer, U.F. J.; Murphy, E.; Haddow, M. F.;  Green, M. ; Alder, R.W.; Wass, D.F.,  Chem., Eur. J. 2013, 13, 4287-4299.

 

Frustrated Lewis pairs beyond the main group: transition metal-containing systems.

Wass, D. F; Chapman, A. M. Topics in Current Chemistry, 2013, 334, 261-280.

 

2012

Avoiding MAO: Alternative Activation Methods in Selective Ethylene Oligomerization

Stennett, T. E.; Haddow, M. F.; Wass, D. F.; Organometallics, 2012, 31, 6960–6965.

 

Platinum(II) Diphosphinamine Complexes for the Efficient Hydration of Alkynes in Micellar Media

Trentin, F.; Chapman, A. M.; Scarso, A.; Sgarbossa, P.;Michelin, R. A.; Strukul, G.; Wass, D. F.; Adv. Catal. Synth. 2012, 354 (6), 1095-1104.

 

Cationic Ti(IV) and neutral Ti(III) titanocene-phosphinoaryloxide frustrated Lewis pairs: hydrogen activation and catalytic amine-borane dehydrogenation

Chapman, A. M. ; Wass, D. F.; Dalton Trans. 20129067-9072.

 

Cationic Group 4 Metallocene-(o-Phosphanylaryl)oxido Complexes: Synthetic Routes to Transition-Metal Frustrated Lewis Pairs

Chapman, A. M.; Haddow, M. F.; Wass, D. F. Eur. J. Inorg. Chem. 2012, 9, 1546-1554.

 

2011

Frustrated Lewis pairs beyond the main group: synthesis, reactivity, and small molecule activation with cationic zirconocene-phosphinoaryloxide complexes

Chapman, A. M.; Haddow, M. F.; Wass, D. F. J. Am. Chem. Soc., 2011, 133, 18463-18478.  

 

Self-Healing of an Epoxy Resin Using Scandium(III) Triflate as a Catalytic Curing Agent

Coope, T. S.; Mayer, U. F. J.; Wass, D. F.; Trask, R. S.; Bond, I. P., Adv. Fun. Mat. 2011, 21, 4624-4631.

 

Frustrated Lewis Pairs beyond the Main Group: Cationic Zirconocene-Phosphino-aryloxide Complexes and Their Application in Catalytic Dehydrogenation of Amine Boranes

Chapman, A. M.; Haddow, M. F.; Wass, D. F. J. Am. Chem. Soc., 2011, 133, 8826-8829.

 

Cyclopropenylidene carbene ligands in palladium catalysed coupling reactions: carbene ligand rotation and application to the Stille reaction

Chotima, R.; Dale, T.; Green, M.; Hey, T. W.; McMullin, C. L.; Nunns, A.; Orpen, A. G.; Shishkov, I. V.; Wass, D. F.; Wingad, R. L. Dalton Trans. 2011, 40, 5316-5323.

 

Contributions of inorganic chemistry to energy research

Wass, D. F.; Robertson, N. Dalton Trans. 2011, 40, 3775-3776.

 

N,N’-Bis(diphenylphosphino)diaminophenylphosphine Ligands for Chromium-Catalyzed Selective Ethylene Oligomerization Reactions

Dulai, A.; McMullin, C. L.; Tenza, K.; Wass, D. F. Organometallics, 2011, 30, 935-941.

 

Coordination Chemistry of N-Heterocyclic Stannylenes: A Combined Synthetic and Mossbauer Spectroscopy Study

Mansell, S. M.; Herber, R. H.; Nowik, I.; Ross, D. H.; Russell, C. A.; Wass, D. F., Inorg. Chem., 2011, 50, 2252-2263.

 

2010

Cu(I) complexes based on cis, cis-1,3,5-tris(arylideneamino)cyclohexane ligands: synthesis, structure and CO binding

Ebrahimpour, P.; Cushion, M.; Haddow, M. F.; Hallett, A. J.; Wass, D. F. Dalton Trans. 2010, 39, 10910-10919.

 

Low-Temperature Rhodium-Catalyzed Dehydration of Primary Alcohols Promoted by Tetralkylammonium and Imidazolium Halides

Dowson, G. R. M.; Shishkov, I. V.; Wass, D. F.  Organometallics, 2010, 29, 4001-4003.

 

On the Formation of Odd-Number Olefins in Chromium-Catalyzed Selective Ethylene Oligomerization Reactions: Evidence for Chain Transfer to Aluminum

Hey, T. W.; Wass, D. F., Organometallics, 2010, 29, 3676-3678.

 

Facile dihydrogen release from phosphino-borinate ester Lewis pairs

Chapman, A. M.; Haddow, M. F.; Orton, J. P. H.; Wass, D. F., Dalton Trans. 2010, 39, 6184-6186.

 

Ligand effects in chromium diphosphine catalysed olefin co-trimerisation and diene trimerisation

Bowen, L. E.; Charernsuk, M.; Hey, T. W.; McMullin, C. L.; Orpen, A. G.; Wass, D. F., Dalton Trans. 2010, 39, 560-567.

 

2009

C-Substituted Bis(diphenylphosphino)methane-Type Ligands for Chromium-Catalyzed Selective Ethylene Oligomerization Reactions

Dulai, A.; de Bod, H.; Hanton, M. J.; Smith, D. M.; Downing, S.; Mansell, S. M.; Wass, D. F. Organometallics, 2009, 28, 4613-4616.

 

Copper(I) complexes of cis,cis-1,3,5-tris(mesitylideneamino)cyclohexane ligands: synthesis, structure and substrate selectivity

Cushion, M.; Ebrahimpour, P.; Haddow, M. F.; Hallett, A. J.; Mansell, S. M.; Orpen, A. G.; Wass, D. F. Dalton Trans., 2009, 1632-1635.

 

Rhodium Complexes of Cyclopropenylidene Carbene Ligands: Synthesis, Structure, and Hydroformylation Catalysis

Green, M.; McMullin, C. L.; Morton, G. J. P.; Orpen, A. G.; Wass, D. F.; Wingad, R. L. Organometallics, 2009, 28, 1476-1479.

 

Synthesis and Structural Characterization of Tin Analogues of N-Heterocyclic Carbenes

Mansell, S. M.; Russell, C. A.; Wass, D. F. Inorg. Chem., 2009, 47, 11367-11375.

 

2008

Syntheses and molecular structures of some saturated N-heterocyclic plumbylenes

Charmant, J. P. H.; Haddow, M. F.; Hahn, F. E.; Heitmann, D.; Frohlich, R.; Mansell, S. M.; Russell, C. A.; Wass, D. F., Dalton Trans. 2008, 43, 6055-6059.

 

Copper(I) diphosphine catalysts for C-N bond formation: synthesis, structure, and ligand effects

Daly, S.; Haddow, M. F.; Orpen, A. G.; Rolls, G. T. A.; Wass, D. F.; Wingad, R. L. Organometallics, 2008, 27, 3196-3202.

 

2007

Cyclopropenylidene Carbene Ligands in Palladium C-N Coupling Catalysis

Wass, D. F.; Hey, T. W.; Rodriguez-Castro, J.; Russell, C. A.; Shishkov, I. V.; Wingad, R. L.; Green, M., Organometallics, 2007, 26, 4702-4703.

 

One electron oxidation of chromium N,N-bis(diarylphosphino)amine and bis(diarylphosphino)methane complexes relevant to ethene trimerisation and tetramerisation.

Bowen, N; Haddow, M.; Orpen, A. G.; Wass, D. F. Dalton Trans., 2007, 1160.

 

Chromium-catalysed ethene trimerisation and tetramerisation – breaking the rules in olefin oligomerisation. 

Wass, D. F.  Dalton Trans., 2007, 816.

 

The selective trimerisation of isoprene with chromium N,N-bis(diarylphosphino) amine catalysts.

Bowen, L. E.; Charernsuk, M.; Wass, D. F.  Chem. Commun., 2007, 2835.

 

Cyclopropenylidene carbene ligands in palladium C-C coupling catalysis.

Wass, D. F.; Haddow, M. F.; Hey, T. W.; Orpen, A. G.; Russell, C.A.; Wingad, R. L.; Green, M. Chem. Commun., 2007, 2704.

 

2006

Selective Cotrimerization of Ethene and Styrenic Comonomers.     
Bowen, L. E.; Wass, D. F.    Organometallics  2006,  25,  555-557.

 

2004

Diphosphine Complexes of Nickel(II) Are Efficient Catalysts for the Polymerization and Oligomerization of Ethylene: Steric Activation and Ligand Backbone Effects.

Dennett, J. N. L.; Gillon, A. L.; Heslop, K.; Hyett, D. J.; Fleming, J. S.; Lloyd-Jones, C. E.; Orpen, A. G.; Pringle, P. G.; Wass, D. F.; Scutt, J. N.; Weatherhead, R. H.    Organometallics  2004,  23,  6077.

 

2003

Bis(carbene)pyridine Complexes of Cr(III): Exceptionally Active Catalysts for the Oligomerization of Ethylene.     

McGuinness, D. S.; Gibson, V. C.; Wass, D. F.; Steed, J. W. J. Am. Chem. Soc.,  2003,  125,  12716.

 

Iron complexes bearing iminopyridine and aminopyridine ligands as catalysts for atom transfer radical polymerization.     

Gibson, V. C.; O’Reilly, R. K.; Wass, D. F.; White, A. J. P.; Williams, D. J.  Dalton Transactions  2003,  2824.

 

Polymerization of Methyl Methacrylate Using Four-Coordinate (a -Diimine)iron Catalysts: Atom Transfer Radical Polymerization vs. Catalytic Chain Transfer.

Gibson, V. C.; O’Reilly, R. K.; Wass, D. F.; White, A. J. P.; Williams, D. J, Macromolecules  2003,  36,  2591.

 

The role of bulky substituents in the polymerization of ethylene using late transition metal catalysts: a comparative study of nickel and iron catalyst systems.     

Britovsek, G. J. P.; Baugh, S. P. D.; Hoarau, O; Gibson, V. C.; Wass, D. F.; White, A. J. P.; Williams, D. J.    Inorg. Chim. Acta  2003,  345,  279.

 

2002

High activity ethylene trimerization catalysts based on diphosphine ligands.     

Carter, A; Cohen, S. A.; Cooley, N. A.; Murphy, A; Scutt, J; Wass, D. F. Chemical Communications  2002,   858.

 

Ethylene polymerisation by a copper catalyst bearing a -diimine ligands.     

Gibson, V. C.; Tomov, A.; Wass, D. F.; White, A. J. P.; Williams, D. J.  Dalton Transactions  2002,  2261.

 

Four-coordinate iron complexes bearing a -diimine ligands: efficient catalysts for Atom Transfer Radical Polymerization (ATRP).     

Gibson, V. C.; O’Reilly, R. K.; Reed, W.; Wass, D. F.; White, A. J. P.; Williams, D. J   Chemical Communications 2002,  1850.

 

Bis(imino)pyridine cobalt alkyl complexes and their reactivity towards ethylene: a model system for beta -hydrogen chain transfer.

Gibson, V. C.; Tellmann, K. P.; Humphries, M. J.; Wass, D. F.  Chemical Communications 2002, 2316.

 

2001

Steric activation of chelate catalysts: efficient polyketone catalysts based on four-membered palladium(II) diphosphine chelates.     

Dossett, S. J.; Wass, D. F.; Jones, M. D.; Gillon, A.; Orpen, A. G; Fleming, J. S.; Pringle, P. G.        Chemical Communications, 2001,   699. 

 

Nickel Ethylene Polymerization Catalysts Based on Phosphorus Ligands.

Cooley, N. A.; Green, S. M.; Wass, D. F.; Heslop, K.; Orpen, A. G.; Pringle, P. G.    Organometallics  2001,  20,  4769.

 

The nature of the active species in bis(imino)pyridyl cobalt ethylene polymerisation catalysts.     

Gibson, V. C.; Humphries, M. J.; Tellmann, K. P.; Wass, D. F.; White, A. J. P.; Williams, D. J.    Chemical Communications   2001, 2252.

 

2000

Mechanistic Studies of Alkene/CO Polymerization with Palladium Complexes Promoted by B(C6F5)3.     

Barlow, G. K.; Boyle, J. D.; Cooley, N. A.; Ghaffar, T; Wass, D. F.   Organometallics  2000,  19(8),  1470.     

 

1999

The search for new-generation olefin polymerization catalysts: life beyond metallocenes.     

Britovsek, G. J. P.; Gibson, V. C.; Wass, D. F..    Angewandte Chemie, International Edition, 1999, 38, 428.

 

Patents

Catalytic conversion of alcohols. Dowson, G.; Wass, D. F. (to BP Biofuels) PCT Int. Appl.  (2011), WO 2011067361

Catalytic Method (alcohol dehydration catalysts).  Shishkov, I.V.; Wass, D. F.; (to University of Bristol) UK patent appl. (2008) GB 0810499.4.

Catalytic Method (alcohol dehydration catalysts).  Shishkov, I.V.; Wass, D. F.; (to University of Bristol) UK patent appl. (2008) GB 0724915.1.

Catalytic Method (Cyclopropenylidene catalysts).  Green, M.; Wass, D. F.; (to University of Bristol) UK patent appl. (2007) 0703509.0.

Olefin trimerization using catalysts based on Group VIB metals and phosphorus-containing ligands. Wass, D. F.  (to BP Chemicals Limited, UK). PCT Int. Appl. (2002), WO 2002004119.

Polymerization process catalyzed by a bidentate bisphosphine-Group VIII metal complex.  Wass, D. F.  (to BP Chemicals Limited, UK). PCT Int. Appl.  (2001), WO 2001010876.

Polymerization catalysts for polymerization of radically polymerizable monomers.  Gibson, Vernon Charles; Wass, Duncan Frank.  (to BP Chemicals Limited, UK).    PCT Int. Appl. (1999) WO 9958578.

Metal complexes having nitrogen-containing ligands as olefin polymerization catalysts.  Gibson, Vernon Charles; Mabille, Reed, Warren; Wass, Duncan; (to BP Chemicals Ltd., UK).    PCT Int. Appl. (1998), WO 9849208.