SYNTHESIS AND MAGNETIC-PROPERTIES OF A NEW OXALATO-BRIDGED HETEROTRINUCLEAR COMPLEX, [NICR2(BIPY)(2)(C2O4)(4)(H2O)(2)]CENTER-DOT-H2O - A RARE CASE OF ANTIFERROMAGNETIC COUPLING BETWEEN CR(III) AND NI(II) IONS

Authors
STANICA N STAGER CV CIMPOESU M ANDRUH M
Citation
N. Stanica et al., SYNTHESIS AND MAGNETIC-PROPERTIES OF A NEW OXALATO-BRIDGED HETEROTRINUCLEAR COMPLEX, [NICR2(BIPY)(2)(C2O4)(4)(H2O)(2)]CENTER-DOT-H2O - A RARE CASE OF ANTIFERROMAGNETIC COUPLING BETWEEN CR(III) AND NI(II) IONS, Polyhedron, 17(10), 1998, pp. 1787-1789
Citations number
14
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
17
Issue
10
Year of publication
1998
Pages
1787 - 1789
Database
ISI
SICI code
0277-5387(1998)17:10<1787:SAMOAN>2.0.ZU;2-6
Abstract
A new heterotrinuclear complex, [NiCr2(bipy)(2)(C2O4)(4)(H2O)(2)]. H2O , has been synthesized by self-assembling [Cr(bipy)(C2O4)(2)](-) build ing blocks with Ni(II) ions. The synthesis way consists of the reactio n of a barium(II) precursor, [BaCr2(bipy)(2)(C2O4)(4)(H2O)]. H2O, with nickel(II) sulfate. Variable-temperature magnetic susceptibility meas urements indicate an antiferromagnetic coupling between Ni(II) and Cr( III) ions (J = -0.6 cm(-1), D-Ni = 0.4 cm(-1), H = -J(SCr1SNi + SCr2SN i) + SNiDNiSNi). (C) 1998 Elsevier Science Ltd. All rights reserved.