Synthesis and Crystal Structure of Cadmium(Ⅱ) Complex [Cd(H_2O)(CH_3OC_6H_4COO)_2]_n

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At room temperature, the reaction of Cd(NO3)24H2O and anisic acid in an ethanol solution affords the cadmium (Ⅱ) complex [Cd(H2O)(CH3OC6H4COO)2]n. The crystal is of monoclinic, empirical formula C16H16O7Cd, Mr = 432.69, space group C2/c with parameters: a = 34.211(2), b = 6.030(2), c = 7.611(3) ? = 95.619(5)? V = 1562.5(9) ?, Z = 4, Dc = 1.831 g/cm3, = 1.434 mm-1, F(000) = 856, R = 0.0215 and wR = 0.0456. 1121 reflections with I ≥ 2s(I) were considered to be observed. Each cadmium atom is seven-coordinate in a distorted pentagonal bipyramidal geometry. The Cd (Ⅱ) center is doubly bridged with the neighboring Cd centers by anisate ligands to form a four-membered ring with a repeating unit of CdOCdO-. The extended structure and hydrogen-bonding patterns displayed in the complex were studied. At room temperature, the reaction of Cd (NO3) 24H2O and anisic acid in an ethanol solution affords the cadmium (II) complex [Cd (H2O) (CH3OC6H4COO) 2] n. The crystal is of monoclinic, empirical formula C16H16O7Cd, Mr = 432.69, space group C2 / c with parameters: a = 34.211 (2), b = 6.030 (2), c = 7.611 (3)? = 95.619 (5)? ​​V = 1562.5 = 1.831 g / cm3, = 1.434 mm-1, F (000) = 856, R = 0.0215 and wR = 0.0456. Each cadmium atom is seven-coordinate in a distorted pentagonal bipyramidal geometry. The Cd (II) center is doubly bridged with the neighboring Cd centers by anisate ligands to form a four-membered ring with a repeating unit of CdOCdO-. The extended structure and hydrogen-bonding patterns displayed in the complex were studied.
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