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Synthese, Kristallstruktur und magnetisches Verhalten von Gd(CF 3 CF 2 COO) 3 (H 2 O) 3
Author(s) -
Rohde Alexander,
Urland Werner
Publication year - 2006
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.200500377
Subject(s) - crystallography , crystal structure , antiferromagnetism , carboxylate , chemistry , magnetic susceptibility , gadolinium , stereochemistry , physics , organic chemistry , condensed matter physics
Synthesis, Crystal Structure and Magnetic Behaviour of Gd(CF 3 CF 2 COO) 3 (H 2 O) 3 Single crystals of Gd(CF 3 CF 2 COO) 3 (H 2 O) 3 have been obtained by reaction of Gd 2 O 3 with an aqueous solution of CF 3 CF 2 COOH. The compound crystallizes triclinically in the space group $P{\bar 1}$ (No. 2; Z = 2; a = 928.5(1) pm, b = 1037.1(1) pm, c = 1147.3(2) pm, α = 90.44(2)°, β = 108.56(1)°, γ = 106.49(1)°). In the crystal structure the gadolinium ions are bridged by carboxylate groups to dimers and are coordinated eightfold by oxygen atoms. The magnetic behaviour was investigated in the temperature range of 1.77 to 300 K. The magnetic data indicate weak antiferromagnetic interactions within the dimeric unit ( J ex = −0.0057 cm −1 ).