Reactions of Cu(hfacac)(2).H(2)O (hfacac = Hexafluoroacetylacetonate) with Bidentate Ligands. Preparation, Characterization, and X-ray Structures of the Molecular Complexes Cu(hfacac)(2)(pyrazine)(2) and Cu(hfacac)(2)(3-cyanopyridine)(2) and the One-Dimensional Coordination Polymers Cu(hfacac)(2)(1,2-bis(4-pyridyl)ethane) and Cu(hfacac)(2)(4,4'-trimethylenebipyridine).

Reactions of Cu(hfacac)(2).H(2)O (hfacac = hexafluoroacetylacetonate) with pyrazine, 3-cyanopyridine, 1,2-bis(4-pyridyl)ethane, and 4,4'-trimethylenebipyridine in methylene chloride have been studied. Two types of products were obtained and crystallographically characterized: compounds 1 (Cu(hfacac)(2)(pyrazine)(2), orthorhombic, Pbca; a = 9.

New inorganic/organic coordination polymers generated from bidentate Schiff-base ligands.

The coordination chemistry of the long conjugated bidentate Schiff-base ligands 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene (L1) and 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene (L2) with cadmium and cobalt nitrate hydrates is investigated. Four new coordination polymers are prepared by solution reactions and fully characterized by infrared spectroscopy, elemental analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. [Cd(NO3)2(L1)(1.