Mononuclear and dinuclear trimethylplatinum(IV) iodide complexes of 3-substituted pyridines

被引:5
|
作者
Ghosh, Biswa Nath [1 ]
Schlecht, Sabine [2 ]
Bauza, Antonio [3 ]
Frontera, Antonio [3 ]
机构
[1] Veer Surendra Sai Univ Technol, Dept Chem, Burla 768018, Odisha, India
[2] Justus Liebig Univ, Inst Anorgan & Analyt Chem, Heinrich Buff Ring 58, D-35392 Giessen, Germany
[3] Univ Illes Balears, Dept Chem, Crta De Valldemossa Km 7-5, Palma De Mallorca 07122, Baleares, Spain
关键词
CRYSTAL-STRUCTURE; REDUCTIVE ELIMINATION; HALIDE-COMPLEXES; LIGANDS; HYDROGELATION; PYRIDAZINE; ACTIVATION; PROGRAM; SHIFTS;
D O I
10.1039/c7nj00337d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Reaction of tetrameric trimethylplatinum(IV) iodide with an excess of 3-substituted pyridines in chloroform afforded mononuclear complexes, [PtMe3L2I] (L = 3-CNpy, 3-Brpy, 3-MeOpy, 3-Mepy and 3-Etpy). The complexes were characterized by H-1 NMR, CHN analysis and X-ray single crystal structure analysis. The mononuclear complexes undergo reaction with trimethylplatinum(IV) iodide in chloroform to form the corresponding dinuclear forms (both syn and anti). A comparison of both the mononuclear and dinuclear forms in solution for a particular pyridine substituent has been studied in detail with the help of H-1 NMR spectroscopy, ably supported by DFT computational studies. The investigation further shows the influence of the pyridine substituent on controlling the mode of the reaction. The crystal structures of two dinuclear complexes, syn-[PtMe3(3-CNpy)I](2) and anti-[PtMe3(3-Brpy)I](2), have also been described here.
引用
收藏
页码:3498 / 3507
页数:10
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