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Structure and Magnetic Properties of a Trinuclear Nickel(II) Complex Constructed by bpca – Anions
Author(s) -
Huang Ximing,
Fan Chunhua,
Lu Jing,
Liu CaiMing,
Lu Zhengliang,
Nie Yong
Publication year - 2014
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.201400184
Subject(s) - crystallography , nickel , octahedron , crystal structure , antiferromagnetism , chemistry , hydrogen bond , ion , amine gas treating , magnetic susceptibility , stereochemistry , molecule , physics , organic chemistry , condensed matter physics
The trinuclear Ni II cluster [Ni 3 (bpca) 2 (bpy) 2 (H 2 O) 4 ](NO 3 ) 4 · H 2 O ( 1 ) (bpca – = anion of bis(2‐pyridylcarbonyl)amine, bpy = 2, 2′‐bipyridine) was isolated. Single crystal X‐ray diffraction analysis showed that three crystallographically independent Ni II ions are located in a six‐coordinate distorted octahedral environment, bridged by the organic spacer bpca – . The crystal lattice is stabilized by hydrogen bonds, which are linking the Ni 3 cations and NO 3 – anions into a three‐dimensional framework. Variable‐temperature magnetic susceptibility for complex 1 in the range 2–300 K indicates the presence of weak antiferromagnetic interactions in the Ni 3 unit with J = –0.67 cm –1 .