Tetrakis(4-amino-1,2,4-triazole)platinum(II) Salts: Syntheses, Crystal Structures, and Properties

被引：6

作者：

Carpenter, Julia A. ^{[1
]}

Dshemuchadse, Julia ^{[1
]}

Busato, Stephan ^{[1
]}

Braeunlich, Irene ^{[1
]}

Poethig, Alexander ^{[2
]}

Caseri, Walter ^{[1
]}

机构：

[1] Eidgenoss Tech Hsch ETH Zurich, Dept Mat, CH-8093 Zurich, Switzerland

[2] Tech Univ TU Munchen, Catalysis Res Ctr, D-85748 Garching, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2014年 / 640卷 / 05期

基金：

瑞士国家科学基金会;

关键词：

N-Ligands; X-ray diffraction; Platinum; Platinates; SPIN TRANSITION; COMPLEXES; TRIAZOLE; 4-AMINO-1,2,4-TRIAZOLE; DERIVATIVES;

D O I：

10.1002/zaac.201300605

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Transparent crystals comprising the nitrogen-rich coordination unit [Pt(NH(2)trz)(4)](2+) were synthesized with counterions of various sizes but of the same charge (-1), yielding the compounds [Pt(NH(2)trz)(4)]Cl(2<bold>)2</bold>H2O, [Pt(NH(2)trz)(4)](NO3)(2) and [Pt(NH(2)trz)(4)](CF3SO3)(2), with NH(2)trz designating 4-amino-1,2,4-triazole. Single-crystal X-ray diffraction analysis showed that NH(2)trz coordinates with only the nitrogen atom in 1-position in all compounds. The [Pt(NH(2)trz)(4)](2+) units are stacked such that the platinum atoms form linear arrays with Pt-Pt spacings mostly uncorrelated to anion size. The compound with the smallest anion (Cl-) has the smallest Pt-Pt spacing (4.72 angstrom) and shows a quasi-one-dimensional structure. Thermal decomposition of the compounds was observed around 200 degrees C. Electrical conductivity of [Pt(NH(2)trz)(4)]Cl-2 and [Pt(NH(2)trz)(4)](SO3CF3)(2) was investigated and found to be humidity-dependent. Finally, [Pt(NH(2)trz)(4)](2+) ions obtained by dissolution of the chloride salt are shown to be useful for the synthesis of new compounds such as the Magnus' salt derivative [Pt(NH(2)trz)(4)][PtCl4].

引用

页码：724 / 732

页数：9

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