Raman spectrum of [Ru(CNBut)(CO)(η2-C 6-H4-2-CHO)(PPh3)2][BF 4]·2CDCl3 shows that the crystallographically determined bifurcated hydrogen-bonding interaction Cl3CD⋯ F2BF2- is an example of a blue-shifting hydrogen bond

Alan K. Brisdon, Kevin R. Flower, Robin G. Pritchard

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    Abstract

    Raman data suggest that a crystallographically determined Cl 3CD⋯F2BF2- interaction in the solid-state structure of [Ru(CNBut)(CO)(η2-C 6-H4-2-CHO)(PPh3)2][BF 4]·2CDCl3 is an example of a blue-shifting bifurcated hydrogen bond. The ν(C-D) band blue-shifts 5 cm-1 to 2269 cm-1 compared to 2264 cm-1 for CDCl3 in the gas phase and 20 cm-1 from frozen CDCl3 at 2249 cm-1. A conventional interpretation of these band shifts would suggest that the CCl2 fragment of DCCl3 is a stronger hydrogen-bond acceptor than the BF2 fragment of a BF4 - group. © 2007 American Chemical Society.
    Original languageEnglish
    Pages (from-to)7189-7192
    Number of pages3
    JournalInorganic Chemistry: including bioinorganic chemistry
    Volume46
    Issue number17
    DOIs
    Publication statusPublished - 20 Aug 2007

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