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  • Syntheses, crystal structures and properties of novel copper(II) complexes obtained by reactions of copper(II) sulfate pentahydrate with tripodal ligands.

Syntheses, crystal structures and properties of novel copper(II) complexes obtained by reactions of copper(II) sulfate pentahydrate with tripodal ligands.

Dalton transactions (Cambridge, England : 2003) (2005-04-13)
Wei Zhao, Jian Fan, You Song, Hiroyuki Kawaguchi, Taka-aki Okamura, Wei-Yin Sun, Norikazu Ueyama
ABSTRACT

Three novel metal-organic frameworks (MOFs), [Cu(1)SO4].H2O (4), [Cu2(2)2(SO4)2].4H2O (5) and [Cu(3)(H2O)]SO4.5.5H2O (6), were obtained by hydrothermal reactions of CuSO4.5H2O with the corresponding ligands, which have different flexibility. The structures of the synthesized complexes were determined by single-crystal X-ray diffraction analyses. Complex 4 has a 2D network structure with two types of metallacycles. Complex 5 also has a 2D network structure in which each independent 2D sheet contains two sub-layers bridged by oxygen atoms of the sulfate anions. Complex 6 has a 2D puckered structure in which the sulfate anions serve as counter anions, which are different from those in complexes 4 (terminators) and 5 (bridges). The different structures of complexes 4, 5 and 6 indicate that the nature of organic ligands affected the structures of the assemblies greatly. The magnetic behavior of complex 5 and anion-exchange properties of complex 6 were investigated.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Copper(II) sulfate pentahydrate, ACS reagent, ≥98.0%
Sigma-Aldrich
Copper(II) sulfate pentahydrate, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99-102%
Sigma-Aldrich
Copper(II) sulfate, puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99-100.5% (based on anhydrous substance)
Sigma-Aldrich
Copper(II) sulfate pentahydrate, puriss., suitable for, meets analytical specification of Ph. Eur., BP, USP,FCC
Sigma-Aldrich
Copper(II) sulfate hydrate, 98%