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Two novel complexes [Zn(Him-thz)2(NO3)]?NO3 1 and [Ni(Him-thz)2(NO3)]?NO3 2(Him-thz = 2-(2 -thiazole)-4,4,5,5-teramethyl-dihydro-1H-imidazolyl-1-hydroxy) have been pre-pared and structurally characterized by X-ray diffraction method. Both complexes crystallize inorthorho- mbic, space group P21212, Z = 2. Crystal data for 1: ZnC20H30N8O8S2, Mr = 640.2, a =13.1630(14), b = 10.5149(11), c = 10.6670(11) ?, V = 1476.4(3) ?3, Dc = 1.440 g/cm3, ì(MoKá) =1.028 mm?1, F(000) = 664, R = 0.0398 and wR = 0.0901 for 2131 observed reflections with I >2ó(I). Crystal data for 2: NiC20H30N8O8S2, Mr = 633.36, a = 13.1611(7), b = 10.4833(6), c =10.6928(6) ?, V = 1475.30(14) ?3, Dc = 1.426 g/cm3, ì(MoKá) = 0.854 mm?1, F(000) = 660, R =0.0281 and wR = 0.0797 for 3099 observed reflections with I > 2ó(I). X-ray analysis reveals that thecrystal structures consist of [M(Him-thz)2(NO3)]+ (M = Zn, Ni) moiety and a NO3 anion. Both ?Zinc(II) and Nickel(II) ions are six-coordinated with distorted octahedral geometries.
Two novel complexes [Zn (Him-thz) 2 (NO3)]? NO3 1 and [Ni (Him-thz) 2 (NO3) , 5,5-teramethyl-dihydro-1H-imidazolyl-1-hydroxy) have been pre-pared and structurally characterized by X-ray diffraction method. Both complex crystallize inorthorho-mbic, space group P21212, Z = 1: ZnC20H30N8O8S2, Mr = 640.2, a = 13.1630 (14), b = 10.5149 (11), c = 10.6670 11, V 1476.4 3, Dc 1.440 g / = 1.028 mm? 1, F (000) = 664, R = 0.0398 and wR = 0.0901 for 2131 observed reflections with I> 2o (I). Crystal data for 2: NiC20H30N8O8S2, Mr = 633.36, a = 13.1611 (m) = 0.854 mm? 1, F (000) = 660, R = 0.954 mm ?, b = 10.4833 6, c = 10.6928 6, X-ray analysis reveals that the crystal structures consist of [M (Him-thz) 2 (NO3)] + (M = Zn, Ni) moiety and a NO3 anion. Both? Zinc (II) and Nickel (II) ions are six-coordinated with distorted octahedral ge ometries.