Reactions of platinum nitrile complexes with cyclotriphosphazenes containing pyridylalkylamino groups
摘要:
Reactions of platinum(II) and platinum(IV) nitrile complexes with polydentate ligands, such as pentaphenoxy(2-pyridylmethylamino)cyclotriphosphazene, pentaphenoxy(3-pyridylmethylamino)cyclotriphosphazene, and pentaphenoxy(2-pyridylethylamino)cyclotriphosphazene, were studied. Platinum(IV) is reduced to platinum(II) upon complex formation; the pyridine and alkylamine nitrogen atoms coordinate to platinum(II) to form chelate rings. The compounds obtained were characterized by H-1 and P-31 NMR and IR spectroscopy, FAB mass spectrometry, and other methods.
Phosphazenes with (2‐Pyridylmethylamino) Groups, I. Syntheses and Crystal Structures of Pentaphenoxy(2‐pyridylmethylamino)‐cyclotriphosphazene and Its Copper(II) Nitrate, Platinum (II) Chloride, and Cobalt(II) Nitrate Complexes
The reaction of the (2-pyridylmethylamino)-substituted cyclotriphosphazene N3P3(OC6H5)5(NHCH2(C5H4N)-2) (1) with copper(II) nitrate, platinum(II) chloride, and cobalt(II) nitrate yields the stable complexes [Cu(NO3)2·(1)2] (1a), [PtCl2·(1)] (1b), [Co(NO3)2 · (1)] (1c). The X-ray crystallographic studies of these metal complexes revealed the different coordination behavior of the multifunctional ligand
(2-吡啶基甲基氨基)取代的环三磷腈N 3 P 3(OC 6 H 5)5(NHCH 2(C 5 H 4 N)-2)(1)与硝酸铜(II),铂(II)的反应氯化物和硝酸钴(II)生成稳定的络合物[Cu(NO 3)2 ·(1)2 ](1a),[PtCl 2 ·(1)](1b),[Co(NO 3)2 ·(1)](1c)。这些金属配合物的X射线晶体学研究揭示了多功能配体的不同配位行为。
Synthesis and molecular structure of platinum(II) complexes with cyclotriphosphazenes containing pyridylalkylamino and pyridylmethoxy groups
作者:S. A. Simanova、T. V. Kuznetsova、V. N. Demidov、E. A. Aleksandrova、U. Diefenbach
DOI:10.1134/s1070363207110059
日期:2007.11
The interaction of platinum(II) nitrile complexes with polydentate ligands, pentaphenoxy(2-pyridylmethylamino) cyclotriphosphazene (L-1), pentaphenoxy( 3-pyridylmethylamino) cyclotriphosphazene (L-2), pentaphenoxy[2-(2- pyridyl) ethylamino] cyclotriphosphazene (L-3), and pentaphenoxy(2-pyridylmethoxy)cyclotriphosphazene (L-4), was studied. The synthesized complexes were characterized by single-crystal X-ray diffraction, H-1 and P-31 NMR spectroscopy, IR spectroscopy, FAB mass spectrometry, and other methods. In complexation of phosphazenes L-1 L-3 with Pt(II) ions, nitrogen atoms of the pyridine ring and alkylamine fragment participate in the coordination to form chelate rings. In the complex with L-4, the substituted phosphazene is coordinated via nitrogen atoms of the pyridyl group and cyclotriphosphazene ring to form a seven-membered ring.