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Synthesis and Characterization of Acetonitrile‐Ligated Transition‐Metal Complexes with Tetrakis(pentafluorophenyl)borate as Counteranions
Author(s) -
Hijazi Ahmed K.,
Al Hmaideen Akef,
Syukri Syukri,
Radhakrishnan Narayanan,
Herdtweck Eberhardt,
Voit Brigitte,
Kühn Fritz E.
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800201
Subject(s) - chemistry , acetonitrile , boron , thermal decomposition , decomposition , infrared spectroscopy , metal , inorganic chemistry , transition metal , ion , polymer chemistry , medicinal chemistry , organic chemistry , catalysis
Complexes with the general formula [M II (NCCH 3 ) 6 ][TPFB] 2 [M = Cr, Fe, Co, Ni, Cu, Zn, (TPFB) – = tetrakis(pentafluorophenyl)borate] were synthesized and characterized both in the solid state and in solution. According to the spectroscopic data, [TPFB] can be considered as a truly noncoordinating anion. The NCCH 3 ligands are lost if the samples are kept at room temperature for extended periods of time. Thermolysis leads to the loss of the NCCH 3 ligands and decomposition of the anion above 100 °C with the formation of MF 2 . It has to be noted that distortion of the geometries of the Cu II , Zn II and Cr II complexes occurs, as evidenced by infrared spectroscopy. The complexes can be easily prepared and obtained in high yields and are moderately sensitive to air. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)