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Crystal structure of (N,N,N′,N′‐tetramethyl‐1,2‐diaminoethane)(1,1,1‐trifluoro‐6‐methyl‐2,4‐heptanedionato)copper(II) perchlorate
Author(s) -
Heunnen G. W. J.,
Numan M.,
Tsiamis C.,
Kavounis C. A.
Publication year - 1995
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/zaac.19956210729
Subject(s) - perchlorate , monoclinic crystal system , chemistry , crystallography , diamine , crystal structure , copper , denticity , chromophore , ion , molecule , monomer , x ray crystallography , ligand (biochemistry) , stereochemistry , diffraction , photochemistry , polymer chemistry , polymer , biochemistry , receptor , physics , optics , organic chemistry
The solvatochromic compound [Cu(tfmh)Me 4 en]ClO 4 (tfmh − denotes the anion of 1,1,1‐trifluoro‐6‐methyl‐2,4‐heptanedione) was prepared and its structure has been determined from three‐dimensional X‐ray diffraction data. The structure consists of discrete [Cu(tfmh)Me 4 en] + monomeric units and perchlorate ions. The copper(II) ion is surrounded by the two nitrogen atoms of the diamine molecule and the two oxygen atoms of the β‐dionato anion. The N,N,N′,N′‐tetramethyl‐1,2‐diaminoethane, Me 4 en, coordinates as bidentate ligand through the nitrogen atoms and adopts the gauche conformation and λ configuration. The CuN 2 O 2 chromophore is virtually planar. The compound crystallizes in the monoclinic system (space group P2 1 /c) with a = 11.9520(2), b = 14.6600(2), c = 17.2240(4) Å, β = 135.72(2)°, Z = 4 and V = 2107.01(7) Å 3 .