Photo of Robert J. Crutchley

Robert J. Crutchley

Professor and Chair

Degrees:Ph.D. (York University)
Phone:613-520-2600 x 3848
Office:203 SC

Research Objectives

Not accepting students at this time. 

The investigation of intramolecular electron transfer (or exchange) processes uncovers the interrelationships of molecular properties and develops the conceptual tools that are required to purposefully synthesize novel magnetic, electronic and non-linear optical materials of industrial importance. The construction of a model system, to quantitatively assess how the nature of the frontier molecular orbitals directly influences molecular properties, would be of significant theoretical and practical value. Results from my group have shown that we have been successful in designing such a model system and this offers an exciting research opportunity.

Application of NMR, electronic absorption, spectroelectrochemistry, cyclic voltammetry and magnetic susceptibility measurements combined with theory have permitted a quantitative understanding of the factors which influence the extent of metal-metal superexchange coupling (both electron transfer and exchange) to an unprecedented degree. Other research avenues are also being explored (conducting polymeric and non-linear optical materials) which will exploit my group’s understanding of these systems and hopefully lead to practical results.

Recent Selected Publications

Robert J. Crutchley. Charge-Transfer Isomers and Mixed-Valence Properties. Angew. Chem. Int. Ed. 44, 6452-6454 (2005).

Guo-Lin Xu, Robert J. Crutchley, Maria C. DeRosa, Hong-Xing Zhang, Xiaoping Wang and Tong Ren. J. Am. Chem. Soc. 127, 13354-13363 (2005).

Mousa Al-Noaimi, Glenn P. A. Yap and Robert J. Crutchley. Outersphere Perturbation of Delocalized Mixed-Valence Complexes. Inorg. Chem. 43, 1770-1778 (2004).

Guo-Lin Xu, Maria C. DeRosa, Robert J. Crutchley, and Tong Ren. Diruthenium Metallayne: An Effective Facilitator of Electronic Delocalization. J. Am. Chem. Soc. 126, 3728-3729 (2004).

Mousa Al-Noaimi, Glenn P.A. Yap, Robert J. Crutchley. Outer-Sphere Perturbation of Delocalized Mixed-Valence Complexes. Inorg. Chem. 43, 1770-1778 (2004).

Maria C. DeRosa, Derek Hodgson, Gary D. Enright, Brian Dawson, Christopher E. B. Evans and Robert J. Crutchley. Iridium Luminophore Complexes for Unimolecular Oxygen Sensors. J. Am. Chem. Soc. 2004, 126, 7619-26.

Maria C. DeRosa, Peter J. Mosher, Glenn P.A. Yap, Kathy-Sara Focsaneanu, Robert J. Crutchley and Christopher E.B. Evans. Synthesis, Characterization, and Evaluation of [Ir(ppy)2(vpy)Cl] as a Polymer-Bound Oxygen Sensor. Inorg. Chem., 42, 4864-4872 (2003)

G.-L Xu, G. Zou, Y.-H. Ni, M. C. DeRosa, R. J. Crutchley, T. Ren. Polyyn-diyls Capped by Diruthenium Termini: A New Family of Carbon-Rich Organometallic Compounds and Distance-Dependent Electronic Coupling Therein J. Am. Chem. Soc., 125 , 10057-10065 (2003).

Maria C. DeRosa and Robert J. Crutchley. Photosensitized Singlet Oxygen and its Applications. Coord. Chem. Rev., 233-234, 351-357 (2002)

Hassan Hadadzadeh, Maria C. DeRosa, Glenn P.A. Yap, and Robert J. Crutchley. Cyclometallated Ruthenium Chloride and Nitrosyl Complexes. Inorg. Chem., 41, 6521-6526 (2002).

Maria C. DeRosa, Christopher A. White, Christopher E.B. Evans, and Robert J. Crutchley. Infrared Study of the Class II/Class III Boundary in Mixed-Valence Dinuclear Ruthenium Complexes. J. Am. Chem. Soc., 123, 1396-1402 (2001).

Maria C. DeRosa, Fahad Al-Mutlaq, and Robert J. Crutchley. Semiconductor Properties in an Iodine-Doped Platinum (II) Dinuclear Complex, Inorg. Chem., 40, 1406-1407 (2001).

Robert J. Crutchley. Phenylcyanamide Ligands and their Metal Complexes. Coord. Chem. Rev., 219-221, 125-155 (2001).

Peter J. Mosher, Glenn P.A. Yap, and Robert J. Crutchley. A Donor-Acceptor-Donor Bridging Ligand in a Class III Mixed-Valence Complex. Inorg. Chem., 40, 1189-1195 (2001).