Structures of Coordination Polymers of Zinc, Cobalt(II), and Manganese(II) Trifluoroacetates with 4,4'-Dipyridyl

Abstract

Thermal heating of crystals [Zn3(µ-OH2)2(µ-OOСCF3)4(OOCСF3)2(OH2)2][µ-O(CH2CH2)2O)], Co3(µ-OOCF3)4(µ-OH2)2(OOCF3)2[O(CH2CH2)2O]2(ОН2)2, and [Mn2(µ-OOСCF3)3(OOCСF3) (OH2)][µ-O(CH2CH2)O]2 in vacuum (180°С) leads to the formation of powders, the dissolution of which in THF followed by slow diffusion of a solution of 4,4'-dipyridyl (dipy) in THF results in the formation of 1D coordination polymer [Zn(OOCCF3)2(dipy) · 0.5THF]n with a zigzag geometry and 3D coordination polymers {Co[(OOCCF3)(dipy)]2}n and {Mn[(OOCCF3)(dipy)]2 ⋅ 3THF}n, the latter containing solvate molecules THF in pores. The obtained compounds have been studied by chemical analysis, IR spectroscopy, and X-ray diffraction.