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The crystal structure of the title complexes described as py4Zn(OReO3)2 was synthesized and determined by single-crystal X-ray structure analysis and the comparison was made to Zn(ReO4)2 4H,O. The crystal of py43)2 is monoclinic with space group P21/c. It has the following parameters: a=1 .0325(1) um, b=1 .4693(1) um, c=1.6837(1) um, β=99. 187(2), V=2.5215(3) nm3, Z=4, dc=2.324 g/cm3 and Rf=0.067, Rw=0.089. The structure consists of two almost tetrahedral ReO4- units and a slightly distorted ZnN4O2 octahedron formed by four N atoms from four pyridines and two O atoms belonging to two perrhenates in which Zn is central.
The crystal structure of the title complexes described as py4Zn (OReO3) 2 was synthesized and determined by single-crystal X-ray structure analysis and the comparison was made to Zn (Re04) 2 4H, O. The crystal of py43) 2 is monoclinic with space group P21 / c. It has the following parameters: a = 1 .0325 (1) um, b = 1 .4693 (1) um, c = 1.6837 (1) um, V = 2.5215 (3) nm3, Z = 4, dc = 2.324 g / cm3 and Rf = 0.067 and Rw = 0.089 The structure consists of two almost tetrahedral ReO4- units and a slightly distorted ZnN4O2 octahedron formed by four N atoms from four pyridines and two O atoms belonging to two perrhenates in which Zn is central.