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Critchley G, Dyson PJ, Johnson BFG, McIndoe JS, O'Reilly RK, Langridge-Smith PRR. Reactivity and Characterization of Transition-Metal Carbonyl Clusters Using UV Laser Desorption Mass Spectrometry. Organometallics 1999. [DOI: 10.1021/om990075f] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Glenn Critchley
- Micromass UK Limited, Floats Road, Wythenshawe, Manchester, M23 9LZ, U.K., Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K., Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K., and Department of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, U.K
| | - Paul J. Dyson
- Micromass UK Limited, Floats Road, Wythenshawe, Manchester, M23 9LZ, U.K., Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K., Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K., and Department of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, U.K
| | - Brian F. G. Johnson
- Micromass UK Limited, Floats Road, Wythenshawe, Manchester, M23 9LZ, U.K., Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K., Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K., and Department of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, U.K
| | - J. Scott McIndoe
- Micromass UK Limited, Floats Road, Wythenshawe, Manchester, M23 9LZ, U.K., Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K., Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K., and Department of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, U.K
| | - Rachel K. O'Reilly
- Micromass UK Limited, Floats Road, Wythenshawe, Manchester, M23 9LZ, U.K., Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K., Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K., and Department of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, U.K
| | - Patrick R. R. Langridge-Smith
- Micromass UK Limited, Floats Road, Wythenshawe, Manchester, M23 9LZ, U.K., Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K., Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K., and Department of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, U.K
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Hu YF, Bancroft GM, Davis HB, Male JI, Pomeroy RK, Tse JS, Tan KH. Electronic Structure of Os(CO)4L (L = CO, PMe3) Studied by Variable-Energy Photoelectron Spectroscopy. Organometallics 1996. [DOI: 10.1021/om960303v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong-Feng Hu
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - G. Michael Bancroft
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - Harry B. Davis
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - Jonathan I. Male
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - Roland K. Pomeroy
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - John S. Tse
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | - Kim H. Tan
- Departments of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7, and Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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Leong WK, Einstein FWB, Pomeroy RK. Higher Nuclearity Clusters Containing Osmium and Tin Atoms. Synthesis and Structure of [(OC)3Os(SnMe2)]3, Os4(SnMe2)4(CO)14, and Os4(μ3-O)2(SnMe2)4(CO)14. Organometallics 1996. [DOI: 10.1021/om950670r] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weng Kee Leong
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
| | | | - Roland K. Pomeroy
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
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Einstein FW, Johnston VJ, Ma AK, Pomeroy RK. Synthesis, structure, and nonrigidity of Os4(CO)15, Os4(CO)13(PMe3)[P(OMe)3], and Os4(CO)14(CNBut). CAN J CHEM 1995. [DOI: 10.1139/v95-150] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The binary carbonyl Os4(CO)15, 1, has been prepared by the addition of Os(CO)5 to Os3(CO)10(cyclooctene)2 at −15 °C. The related clusters Os4(CO)13(PMe3)[P(OMe)3], 2, and Os4(CO)14(CNBu′), 3, have been synthesized from Os4(CO)13(PMe3) and Os4(CO)15(CNBu′), respectively. The crystal structures of 1, 2, and 3 reveal similar planar metal skeletons with short (2.774 (1) − 2.793 (2) Å) and long (2.978 (2) − 3.019 (2) Å) peripheral Os—Os bonds; the hinge Os—Os bond in 1–3 ranges in length from 2.936 (2) to 2.948 (1) Å. The variable temperature 13C nuclear magnetic resonance spectra of 1 and 3 show that both are highly nonrigid in solution even at −120 °C. The mechanism of nonrigidity is believed to be an all-equatorial, merry-go-round carbonyl exchange. The variable temperature 13C nmr spectra of 2 indicate it is rigid on the nmr time scale in solution at −45 °C. Carbonyl exchange is, however, observed in the spectrum at −6 °C. From the mode of collapse of the signals it is believed that the lowest energy exchange processes in 3 involve axial-equatorial, merry-go-round CO exchanges in the two planes that each contain a short Os—Os bond. Crystallographic data for compound 1: space group C2/c; a = 12.802 (3) Å, b = 10.217 (3) Å, c = 16.380 (5) Å, β = 91.39 (2)°; R = 0.044, 1204 observed reflections. For compound 2: space group P21/c; a = 11.106 (7) Å, b = 16.931 (5) Å, c = 16.481 (5) Å, β = 97.71 (5)°; R = 0.051, 2117 observed reflections. For compound 3: space group P21/n; a = 11.747 (3) Å, b = 18.009 (5) Å, c = 12.448 (2) Å, β = 92.65 (2)°; R = 0.054, 2131 observed reflections. Keywords: osmium, carbonyl, cluster, nonrigidity.
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