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Titolo:
Structure and magnetism of a polycrystalline transition metal soap - Co-II[OOC(CH2)(10)COO](H2O)(2)
Autore:
Rueff, JM; Masciocchi, N; Rabu, P; Sironi, A; Skoulios, A;
Indirizzi:
ULP, ECPM, CNRS, Inst Phys & Chim Mat Strasbourg,UMR 75046, F-67037 Strasbourg, France ULP Strasbourg France F-67037 ourg,UMR 75046, F-67037 Strasbourg, France Univ Milan, Dipartimento Chim Strutturale & Stereochim Inorga, I-20133 Milan, Italy Univ Milan Milan Italy I-20133 & Stereochim Inorga, I-20133 Milan, Italy Univ Milan, Ctr CNR CSSSCMTBSO, I-20133 Milan, Italy Univ Milan Milan Italy I-20133 Ctr CNR CSSSCMTBSO, I-20133 Milan, Italy Univ Insubria, Dipartimento Sci Chim Fis & Matemat, I-22100 Como, Italy Univ Insubria Como Italy I-22100 Chim Fis & Matemat, I-22100 Como, Italy
Titolo Testata:
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
fascicolo: 11, , anno: 2001,
pagine: 2843 - 2848
SICI:
1434-1948(200111):11<2843:SAMOAP>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRYSTAL-STRUCTURE; PHASE-DIAGRAMS; COPPER(II); COMPLEXES; DECOMPOSITION; MESOMORPHISM; DERIVATIVES; BEHAVIOR; PROGRAM; COBALT;
Keywords:
carboxylate ligands; cobalt; layered compounds; magnetic properties; X-ray powder diffraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: Masciocchi, N ULP, ECPM, CNRS, Inst Phys & Chim Mat Strasbourg,UMR 75046, 23 Rue du Loess, F-67037 Strasbourg, France ULP 23 Rue du Loess StrasbourgFrance F-67037 bourg, France
Citazione:
J.M. Rueff et al., "Structure and magnetism of a polycrystalline transition metal soap - Co-II[OOC(CH2)(10)COO](H2O)(2)", EUR J INORG, (11), 2001, pp. 2843-2848

Abstract

Diaquacobalt(II) n-dodecane-alpha,omega -dioate (2) has been synthesized by metathesis of the corresponding potassium soap I and has been fully characterized by chemical and spectroscopic analysis. The crystal structure of 2has been established by X-ray powder diffraction techniques combined with electron diffraction experiments, It crystallizes in a monoclinic cell [P2(1)/a; a = 9.6558(8), b = 7,4793(6), c = 19.8936(2) Angstrom, beta = 95.648(9)degrees, V = 1429.7(3) Angstrom (3); Z = 2] and consists of stacked layers of cobalt(II) ions connected by carboxylato bridges, thus forming chains that extend along the a axis. These layers are separated by alkyl chains arranged quasi-perpendicularly to the polar sheets. Structure analysis reveals a rare anti-anti conformation of the Co-OCO-Co fragments, which is thought to be responsible for the weak antiferromagnetism of the Co-II chains. The exchange coupling constant between the magnetic centres has been estimated as J = -2.08 K.

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Documento generato il 02/10/20 alle ore 00:27:04