Unexpected ring-opening reaction to a new cyanamide-thiolate ligand stabilized as a dinuclear gold complex

被引:16
作者
Bardají, M
Laguna, A [1 ]
Pérez, MR
Jones, PG
机构
[1] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Dept Quim Inorgan, E-50009 Zaragoza, Spain
[2] Tech Univ, Inst Anorgan & Analyt Chem, D-38023 Braunschweig, Germany
关键词
D O I
10.1021/om010866t
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We have synthesized the gold complexes [Au(C6F5)(3)(2-amt)], 1, [Au(C6F5)(2-amt)], 2, and [Au(2-amt)(PPh3)](CF3SO3), 3, where 2-amt = 2-aminothiazoline (2-amino-4,5-dihydrothiazole) by displacement of labile ligands from corresponding gold(III) and gold(I) precursors. The reaction of 2-amt with [Au(acac)(PPh3)] evolves to an unprecedented ring-opening reaction to give the new ligand (2-cyanamide)ethylthiolate, stabilized as a dinuclear gold(I) coordination derivative, [(AuPPh3)(2)(mu-SCH2CH2N-CN)], 4. The molecular structure of complexes 1 and 4 has been confirmed by X-ray diffraction studies. Complex 4 displays short gold-gold distances of 3.0821(3), 3.17618(19), and 3.2867(2) Angstrom (three different molecules in two different crystal forms) and secondary sulfur-gold or nitrogen-gold bonds. Complexes 3 and 4 luminesce intensely in the solid state at low temperature.
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页码:1877 / 1881
页数:5
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