The coordination of Pd(II) and Pt(II) by imidazole

Metal Complexes as Photo- and Radiosensitizers

“…The synthesis of a number of coordination compounds of Pt(II) and Pd(II) with imidazole (ImH) has been reported, including the following Pt complexes cis - and trans -Pt(ImH) 2 X 2 , Pt(ImH) 4 X 2 , Pt(ImH) 2 (Im) 2 , and Pt(ImH) 4 PtX 4 , where X = Cl, Br, or I, and the following Pd complexes trans -Pd(ImH) 2 X 2 , Pd(ImH) 4 X 2 , and Pd(ImH) 4 PdX 4 , where X = Cl or Br, and cis -Pd(ImH) 2 X 2 , where X = Cl, Br or X 2 = C 2 O 4 , as well as Pd(Im) 2 . In all cases, the metal ions are coordinated in a square-planar geometry.…”

“…None of these Pt and Pd complexes show significant cytotoxicity. The various synthetic pathways to prepare the above Pt complexes are summarized in Scheme 52 Synthetic Procedures for Several Pt Compounds (modified from ref ) …”

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

“…A preliminary report about the synthesis of Pt(II) and Pd(II) complexes with imidazole has appeared. 3 It has been found that the complex tis-Pt(Iz)2Cl2 (Iz = imidazole) shows cytostatic activity in mice bearing the tumour LI210 leukemia.4 There is good evidence in the literature that hydrogen bonding is an important factor in determining the activity of the complex. 5 In order to study the possible influence of the hydrogen bonding capacity of the complex on the activity we have synthesized the m-dichloro complex of Pt(II) with ¿V-methylimidazole as the ligand.…”

1-Pyrazolyl phosphazenes and their complexes with palladium(II) chloride and platinum(II) chloride

“…The v(Pd-C1) frequencies in 7a, 7b are assigned to the A , (sym) and B, (asym) vibrations of a cis-coordinated PdCl, group of symmetry C,,, by comparison with the spectra of cis-PdCl,(py), (23), cis-PdCl,(im), (24), and cis-PdCl,(Me,pzH), (25), and the broad lines found in the spectra of 8n, 86, and 9 are also more in accord with this type of coordination than with a trans-configuration, for which a single sharp line would be expected. Coordination at the nitrogen atoms of the phosphazene ring of 7a is ruled out by the magnetic equivalence of the two Me,pz groups.…”