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Cotton FA, Daniels LM, Hillard EA, et al. The lengths of molybdenum to molybdenum quadruple bonds: correlations, explanations, and corrections. Inorg Chem. 2002;41(9):2466-70doi: 10.1021/ic025508c.
Cotton, F. A., Daniels, L. M., Hillard, E. A., & Murillo, C. A. (2002). The lengths of molybdenum to molybdenum quadruple bonds: correlations, explanations, and corrections. Inorganic chemistry, 41(9), 2466-70. https://doi.org/10.1021/ic025508c
Cotton, F Albert, et al. "The lengths of molybdenum to molybdenum quadruple bonds: correlations, explanations, and corrections." Inorganic chemistry vol. 41,9 (2002): 2466-70. doi: https://doi.org/10.1021/ic025508c
Cotton FA, Daniels LM, Hillard EA, Murillo CA. The lengths of molybdenum to molybdenum quadruple bonds: correlations, explanations, and corrections. Inorg Chem. 2002 May 06;41(9):2466-70. doi: 10.1021/ic025508c. PMID: 11978114.
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Inorg Chem. 2002 May 06;41(9):2466-70. doi: 10.1021/ic025508c.

The lengths of molybdenum to molybdenum quadruple bonds: correlations, explanations, and corrections.

Inorganic chemistry

F Albert Cotton, Lee M Daniels, Elizabeth A Hillard, Carlos A Murillo

Affiliations

  1. Department of Chemistry and Laboratory for Molecular Structure and Bonding, PO Box 30012, Texas A&M University, College Station, Texas 77842-3012, USA. [email protected]

PMID: 11978114 DOI: 10.1021/ic025508c

Abstract

A systematic search of the Cambridge Crystallographic Database has yielded structures of 467 molecules containing, or reported to contain, a molybdenum to molybdenum quadruple bond, Mo[quadruple bond]Mo. We have arranged these data as a histogram, in order to determine the "normal" range of Mo[quadruple bond]Mo lengths, 2.06-2.17 A, as well as to examine molecules in which the Mo[quadruple bond]Mo length deviates from the norm. We discuss 24 molecules with exceptionally long Mo[quadruple bond]Mo lengths. Another molecule, Mo(2)(pyNC(O)CH(3))(4), was previously reported to have an unusually short Mo[quadruple bond]Mo bond. However, the structure is highly disordered (probably twinned); thus we have prepared and determined the structure of an analogous molecule, Mo(2)(pyNC(O)CH(2)CH(3))(4), which displays a completely normal Mo[quadruple bond]Mo bond length of over 2.08 A.

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