PMID: 11902897Mar 21, 2002Paper

Oxalate-bridged complexes of dimolybdenum and ditungsten supported by pivalate ligands: ((t)BuCO(2))(3)M(2)(mu-O(2)CCO(2))M(2)(O(2)C(t)Bu)(3). Correlation of the solid-state, molecular, and electronic structures with Raman, resonance Raman, and electronic spectral data

Journal of the American Chemical Society
Bruce E BurstenJeffrey M Zaleski

Abstract

The compounds ((t)BuCO(2))(3)M(2)(mu-O(2)CCO(2))M(2)(O(2)C(t)Bu)(3) (M(4)OXA), where M = Mo or W, are shown by analysis of powder X-ray diffraction data to have extended lattice structures wherein oxygen atoms from the oxalate and pivalate ligands of one M(4)OXA molecule are linked to metal atoms of neighboring molecules. Raman, resonance Raman, electronic absorption (2-325 K in 2-MeTHF), and emission spectra are reported, together with corresponding spectra of the mu-O(2)(13)C(13)CO(2) isotopomers. To aid in the assignment, the Raman spectra of K(2)C(2)O(4).H(2)O and K(2)(13)C(2)O(4).H(2)O have also been recorded. The visible region of the electronic spectra is dominated by intense, fully allowed MLCT transitions, M(2) delta to oxalate pi*, which show pronounced thermochromism and extensive vibronic progressions associated with the oxalate ligand at low temperatures. With excitation into these charge-transfer bands, strong resonance enhancement is seen for Raman bands assigned to the oxalate nu(1)(a(g)) and, to a lesser extent, nu(2)(a(g)) modes. Electronic structure calculations for the model compounds (HCO(2))(3)M(2)(mu-O(2)CCO(2))M(2)(O(2)CH)(3), employing density functional theory (gradient corrected and time-dependent) wi...Continue Reading

References

Sep 15, 1988·Physical Review A: General Physics·A D Becke
Jun 15, 1992·Physical Review. B, Condensed Matter·J P Perdew, Y Wang
Oct 17, 2001·Accounts of Chemical Research·F A CottonC A Murillo

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Citations

Oct 8, 2005·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Malcolm H Chisholm, Nathan J Patmore
Sep 11, 2007·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Peter DayRobin J H Clark
Feb 15, 2007·Proceedings of the National Academy of Sciences of the United States of America·Malcolm H Chisholm
Mar 13, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Douglas J BrownJudith C Gallucci
Jul 23, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Malcolm H Chisholm, Namrata Singh
Feb 12, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Brian G AlberdingClaudia Turro
Jun 28, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Malcolm H Chisholm, Nathan J Patmore
May 2, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Douglas J BrownChristopher W Gribble
Dec 13, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Malcolm H Chisholm, Nathan J Patmore
Apr 24, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Jamie HicksNathan J Patmore
Feb 27, 2004·Organic & Biomolecular Chemistry·Junpei Yuasa, Shunichi Fukuzumi
May 7, 2005·Dalton Transactions : an International Journal of Inorganic Chemistry·Malcolm H ChisholmNathan J Patmore
Jul 15, 2004·Dalton Transactions : an International Journal of Inorganic Chemistry·Matthew J ByrnesJeffrey M Zaleski
Jul 23, 2003·Inorganic Chemistry·F Albert CottonXiaoping Wang
Aug 21, 2007·Inorganic Chemistry·F Albert CottonCarlos A Murillo
Nov 14, 2012·Accounts of Chemical Research·Malcolm H ChisholmClaudia Turro
Oct 30, 2003·Journal of the American Chemical Society·F Albert CottonXiaoping Wang
Jan 18, 2006·Inorganic Chemistry·F Albert CottonDino Villagrán
Dec 8, 2005·Journal of the American Chemical Society·Matthew J ByrnesClaudia Turro
Oct 27, 2005·Journal of the American Chemical Society·Mikhail V BarybinDavid J Zipse

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