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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 7
BKCSDE 23(7)
July 20, 2002 

 
Title
3-Dimensional Terbium Coordination Polymers: [Tb4(NDC)6(H2O)5]·2H2O and [Tb2(BPDC)3(H2O)3]·H2O (NDC = 2,6-Naphthalenedicarboxylate; BPDC = 2,2'-Bipyridine-4,4'-dicarboxylate)
Author
Dongwon Min, Soon W. Lee
Keywords
Excess molar volumes, Toluene, Nitrobenzene, Nitroethane, Acetonitrile.
Abstract
Three-dimensional terbium coordination polymers with the formulas of [Tb4(NDC)6(H2O)5]·2H2O (1) and [Tb2(BPDC)3(H2O)3]·H2O (2) (NDC = 2,6-naphthalenedicarboxylate; BPDC = 2,2'-bipyridine-4,4'-dicarboxy-late) were prepared by hydrothermal reactions. Both compounds were structurally characterized by X-ray diffraction. Compound 1 has a polymeric structure that contains four distinct Tb metals. Three Tb metals have a square-antiprismatic structure, and the remaining one has a 9-coordinate, triply capped trigonal-prismatic structure. Compound 2 is also a polymer with two distinct Tb metals, both of which have a square-antiprismatic structure. The pyridine nitrogen atoms of the BPDC 2- ligand do not coordinate to the metal centers in compound 2.
Page
948 - 952
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