Synthesis and structural characterization of cis-dichlorobis(N-methylimidazole)platinum(II) and cis-dibromobis(N-methylimidazole)platinum(II)

2,2':6',2''-Terpyridine(1-methylimidazole-N3)platinum(II) Perchlorate Acetonitrile Solvate

“…A similar inverted situation was found in the structure of trans-diamminebis(N-methylimidazole)-platinum(if) [1.36(4) versus 1.27(4) A, respectively ;Carmichael, Chan, Cordes, Fair & Johnson, 1972]. On the other hand, these bonds are as expected in cisdichlorobis(N-methylimidazole)platinum(II) [ 1.301 (10) and 1.345(10)A, respectively; Graves, Hodgson, van Kralingen & Reedijk, 1978] and in tetrakis(1-methylimidazole)platinum(II) [1.322 (10) ° versus 1.339 (11) A, and 1.331 (10) versus 1.348 (ll)A in two independent imidazole ligands; Clement et al, 1996].…”

Synthesis of potential platinum(II) anti-tumor complexes: Complexes containing bidentate pyridyl and imidazolyl donors

“…Thus, bands at 403 w (py2CH2), 403 m (py2CEt2), 400 m (pyIm), and 403 w cm-' (py-NMeIm) occur at 453 m or 437 w(b), 456 w and/or 446 w, 430 w, and 431 w cm-', respectively, in the complexes. Platinum-chlorine stretching modes are readily identified in the range 343-328 cm-' for the complexes by comparison with spectra of the ligands and cis-PtL2C12 (L = pyridine [15], imidazole [3], N-methylimidazole [6], and L2 = 2,2'-bipyridyl [16]) which have these modes in the range 345-320 cm-' (Table II).…”

“…2,2'-bipyridyl; pyIm and py-NMeIm were chosen as these bidentates are expected to be coplanar with the PtCIZ group, in contrast to cis-PtLaCla (L = pyridine [8] , Him and NMeIm [6]). In addition pyIm has a proton that may become involved in hydrogen bonding, a factor which may be important in interaction of Pt(I1) complexes with DNA [9].…”

A Monoclinic Form of Tetrakis(1-methylimidazole-N3)platinum(II) Diperchlorate

“…The title complex was obtained from a methanolic solution of cis-[Pt(DMSO)2CI2] and excess l-methylimidazole in methanol (Graves, Hodgson, van Kralingen & Reedijk, 1978;Clement, Roszak & Buncel, 1996a), and was recrystallized from water.…”

“…In this regard, we have recently described the triclinic form of the title compound, tetrakis(1-methylimidazole)platinum(II) diperchlorate, [Pt(Melm)4](C104)2, (I), where Melm is the 1-methylimidazole ligand (Clement, Roszak & Buncel, 1996a). The complex was isolated as small colorless prisms from a methanolic solution of cis-[Pt(DMSO)2C12] and excess 1-methylimidazole, following the modified procedure of Reedijk and co-workers (Graves, Hodgson, van Kralingen & Reedijk, 1978). In the present study, a monoclinic form of (I) is described.…”