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Vanadocene(IV) dicyanide complexes: the evidence super‐hyperfine coupling for compounds with 13 CN ligands
Author(s) -
Honzíček Jan,
Vinklárek Jaromír,
Černošek Zdeněk,
Císařová Ivana
Publication year - 2007
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1987
Subject(s) - chemistry , hyperfine structure , cyanide , electron paramagnetic resonance , raman spectroscopy , crystallography , infrared spectroscopy , single crystal , analytical chemistry (journal) , inorganic chemistry , nuclear magnetic resonance , organic chemistry , atomic physics , physics , optics
An EPR study of the vanadocene complexes (C 5 H 5 ) 2 V(CN) 2 and (CH 3 C 5 H 4 ) 2 V(CN) 2 was carried out. Such compounds show strong super‐hyperfine coupling (| a iso ( 13 C)|∼1.27 mT) when 13 C labeled cyanide is used for their preparation. Super‐hyperfine splitting was observed in the isotropic spectra of solution samples as well as in the anisotropic spectra of frozen solutions. Such studies were supplemented with structural characterization of the parent compounds. Molecular structure of the complex (CH 3 C 5 H 4 ) 2 V(CN) 2 was determined by single‐crystal X‐ray diffraction analysis. Both compounds were characterized by infrared and Raman spectroscopy. Copyright © 2007 John Wiley & Sons, Ltd.