{l_brace}XW{sub 12}O{sub 40} [Cu(en){sub 2}(H{sub 2}O)]{sub 3}{r_brace} (X=V, Si): Two novel tri-supported Keggin POMs with transition metal complexes

Journal Article · Sat Aug 15 00:00:00 EDT 2009 · Journal of Solid State Chemistry

OSTI ID:21370528

Yukun, Lu; Xiaobing, Cui; Yan, Chen; Jianing, Xu; Qingbin, Zhang; Yabing, Liu ^[1]; Tiegang, Wang ^[1]

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1. College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, Jilin 130021 (China)

Two novel polyoxometalate derivatives, {l_brace}X{sup IV}W{sup VI}{sub 10}W{sup V}{sub 2}O{sub 40}[Cu(en){sub 2}(H{sub 2}O)]{sub 3}{r_brace} [X=V (1), Si (2); en=ethylenediamine], have been hydrothermally synthesized and characterized by elemental analyses, IR, UV-Vis, XPS, EPR, TG and single crystal X-ray diffraction analyses. They represent the first classical Keggin polyoxoanion supported by three transition metal complex moieties, which further act as the neutral molecular unit for the construction of the interesting three-dimensional supramolecular frameworks. The magnetic properties of 1 have also been studied in the temperature range of 4-300 K, and its magnetic susceptibility obeys the Curie-Weiss law, showing antiferromagnetic coupling. - Graphical abstract: The first classical Keggin polyoxoanion tri-supported by TMC moieties via bridge oxygen atoms, {l_brace}X{sup IV}W{sup VI}{sub 10}W{sup V}{sub 2}O{sub 40}[Cu(en){sub 2}(H{sub 2}O)]{sub 3}{r_brace}, act as the neutral molecular unit to construct the interesting 3-D supramolecular frameworks.

• OSTI ID: 21370528
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 8; Other Information: DOI: 10.1016/j.jssc.2009.05.030; PII: S0022-4596(09)00237-0; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETISM
COUPLING
CURIE-WEISS LAW
ELECTRON SPIN RESONANCE
HYDROTHERMAL SYNTHESIS
MAGNETIC SUSCEPTIBILITY
MONOCRYSTALS
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TRANSITION ELEMENT COMPLEXES
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY
COHERENT SCATTERING
COMPLEXES
CRYSTALS
DIFFRACTION
ELECTRON SPECTROSCOPY
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETISM
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
RESONANCE
SCATTERING
SPECTROSCOPY
SYNTHESIS
TEMPERATURE RANGE