Synthesis and Physicochemical Properties of the d Metal Complexes with 2-Phenyl-4-(piperidyl-l)-pyrido[2,3-a]anthraquinone.The Molecular and Crystal Structures of 2-Phenyl-4-(Piperi-dyl-1)-pyrido[2,3-a]anthraquinonium-7,12 Tetranitrozincate

摘要

Two types of complexes of 2-phenyl-4-(piperidyl-l)-pyrido[2,3-a]anthraquinone (L) with transition metals were isolated from neutral acetonitrile and acidified acetonitrile and ethanol solutions and characterized.Metal complexes synthesized at pH = 7 had the composition MCl2L centre dot (CH3CN)n (M = Cu,Co,Ni).The complexes (HL)2[Cu2Cl6] (I),(HL)2[CoCl4] (II),(HL)2[Zn(NO3)4] (III) were obtained at pH = 1-2.The molecular and crystal structure of complex III was determined.Some spectral parameters of L and its complexes were measured.