Octanuclear gold(I) alkynyl-diphosphine clusters showing thermochromic luminescence.
نویسندگان
چکیده
The unprecedented, purely gold(I) alkynyl-diphosphine clusters 1-3 demonstrate intense room-temperature phosphorescence with maximum quantum efficiency of 92% in solution (3) and 86% in solid (2) and thermally dependent emission in the crystalline form, attributed to the crystal lattice arrangement.
منابع مشابه
Mechano-induced reversible colour and luminescence switching of a gold(i)-diphosphine complex.
A gold(i)-diphosphine simultaneously exhibits reversible mechanochromism and mechanochromic luminescence. The mechanical grinding can trigger a transformation from a neutral mononuclear structure exhibiting white colour and blue photoluminescence to an ionic dinuclear structure with intramolecular aurophilic interactions exhibiting yellow colour and red emission.
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Disparate properties of gold(I) converge to produce the first known cube assembly of eight Au(I) atoms connected by four N-bridging amidinate ligands on the sides of the cube, capped above and below by hyper-coordinate carbon atoms from a phosphorous ylide. There are no phosphines coordinated to the Au(I) atoms. The cluster is formulated as [Au8{CH(NC8H9)2}4{(ηC)P(C6H5)2(CH3)}2]. It displays a ...
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عنوان ژورنال:
- Chemical communications
دوره 47 19 شماره
صفحات -
تاریخ انتشار 2011