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Synthesis and Crystal Structure of Copper(II) Trifluoroacetates, Cu 2 (CF 3 COO) 4 · 2 CH 3 CN and Cu(CF 3 COO) 2 (H 2 O) 4
Author(s) -
Karpova Elena V.,
Boltalin Alexander I.,
Zakharov Maxim A.,
Sorokitaliya I.,
Korenev Yuri M.,
Troyanov Sergei I.
Publication year - 1998
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199804)624:4<741::aid-zaac741>3.0.co;2-4
Subject(s) - chemistry , acetonitrile , crystal structure , copper , crystallography , hydrogen bond , trifluoroacetic acid , intermolecular force , molecule , organic chemistry
Cu 2 (CF 3 COO) 4 · 2 CH 3 CN ( I ) and Cu(CF 3 COO) 2 (H 2 O) 4 ( II ) have been prepared by concentrating of acetonitrile and aqueous solutions respectively. According to X‐ray data, the complex I consists of binuclear molecules with Cu–O 1.969 Å, Cu–N 2.114 Å. The Cu…Cu distance was found to be 2.766 Å, one of the longest for dimeric structures, apparently, due to the high acidity of trifluoroacetic acid. The coordination environment of Cu atom in II can be described as 4 + 2: 2 Cu–O (H 2 O) 1.937 Å, 2 Cu–O (CF 3 COO) 1.985 Å, 2 Cu–O (H 2 O) 2.447 Å. The mononuclear structure is stabilized by formation of two intra‐ and six intermolecular hydrogen bonds.