Abstract
The PtII atom in the title compound, [PtCl2{(C6H4)(NH2)2}], lies on a twofold rotation axis and has a slightly distorted square-planar coordination environment defined by two N atoms of an 1,2-phenyl-enedi-amine ligand and two Cl- ions. In the crystal, the planar complex mol-ecules are stacked parallel to the c axis, resulting in a columnar structure. In a column, an infinite almost straight Pt⋯Pt chain is formed, suggesting weak metal-metal inter-actions [Pt⋯Pt = 3.3475 (8) Å]. The crystal packing is stabilized by a three-dimensional N-H⋯Cl hydrogen-bonding network between the amino groups and the Cl ligands of adjacent mol-ecules.
Highlights
Ministry of Education, Culture, Sports, Science and Technology, MEXT-Supported Program for the Strategic Research Foundation at Private
The title compound, dichlorido(1,2-phenylenediamine2N,N0 )platinum(II) [PtCl2{(C6H4)(NH2)2}], (I), which was originally prepared by Connors et al (1972), is a member of the family of derivatives of cis-diamminedichloridoplatinum(II), cis-[PtCl2(NH3)2]
The PtII atom lies on a twofold rotation axis
Summary
The title compound, dichlorido(1,2-phenylenediamine2N,N0 )platinum(II) [PtCl2{(C6H4)(NH2)2}], (I), which was originally prepared by Connors et al (1972), is a member of the family of derivatives of cis-diamminedichloridoplatinum(II), cis-[PtCl2(NH3)2] (cis-platin). The antitumor activity (Connors et al, 1972; Meischen et al, 1976) and the chemical stabilities (Köckerbauer & Bednarski, 1996) of the title compound have been reported, its crystal structure has not been determined so far. In the course of our study of the deprotonation and redox properties of a platinum complex with 1,2-phenylenediamine as a ligand (Konno & Matsushita, 2006a,b), we have successfully obtained single crystals of the title compound and report here its crystal structure.
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