Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency

Glaser T, Hedman B, Hodgson KO, Solomon EI (2000)
Accounts of Chemical Research 33(12): 859-868.

Journal Article | Published | English

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Abstract
Ligand K-edge X-ray absorption spectroscopy (XAS) is a new experimental probe of the covalency of a metal-ligand bond. The intensity of the ligand pre-edge feature is proportional to the mixing of ligand orbitals into the metal d orbitals. The methodology to determine covalencies in one-electron (hole) and many-electron systems is described and demonstrated for a series of metal tetrachlorides [MCl4](n-), metal tetrathiolates [M(SR)(4)](n-), and dimeric iron-sulfur (Fe-S) clusters [Fe2S2(SR)(4)](2-). It is there applied to blue Cu proteins, the Cu-A site, hydrogen bonding in Fe-S clusters, and the delocalization behavior in [2Fe-2S] vs [4Fe-4S] clusters. The covalencies determined in these studies provide important electronic structure insight into function.
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Glaser T, Hedman B, Hodgson KO, Solomon EI. Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency. Accounts of Chemical Research. 2000;33(12):859-868.
Glaser, T., Hedman, B., Hodgson, K. O., & Solomon, E. I. (2000). Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency. Accounts of Chemical Research, 33(12), 859-868.
Glaser, T., Hedman, B., Hodgson, K. O., and Solomon, E. I. (2000). Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency. Accounts of Chemical Research 33, 859-868.
Glaser, T., et al., 2000. Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency. Accounts of Chemical Research, 33(12), p 859-868.
T. Glaser, et al., “Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency”, Accounts of Chemical Research, vol. 33, 2000, pp. 859-868.
Glaser, T., Hedman, B., Hodgson, K.O., Solomon, E.I.: Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency. Accounts of Chemical Research. 33, 859-868 (2000).
Glaser, Thorsten, Hedman, B, Hodgson, KO, and Solomon, EI. “Ligand K-edge X-ray absorption spectroscopy: A direct probe of ligand-metal covalency”. Accounts of Chemical Research 33.12 (2000): 859-868.
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PMID: 11123885
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