Feuerstein Thomas J, Poß Marieke, Seifert Tim P, Bestgen Sebastian, Feldmann Claus, Roesky Peter W
Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131 Karlsruhe, Germany.
Chem Commun (Camb). 2017 Aug 8;53(64):9012-9015. doi: 10.1039/c7cc04171c.
The ligand [{MeSiC[triple bond, length as m-dash]CC(NDipp)}Li(thf)] (Dipp = 2,6-diisopropylphenyl) was used for salt metathesis reactions with [AuCl(tht)] (tht = tetrahydrothiophene) to obtain the dinuclear alkyne functionalized bisamidinate [{MeSiC[triple bond, length as m-dash]CC(NDipp)}Au]. This compound serves as a building block for the polynuclear carbide bridged gold(i) amidinate complex [Au{μ-(η:η-C[triple bond, length as m-dash]C)}(MeSiC[triple bond, length as m-dash]CC(NDipp))(tht)], which is the first gold(i) complex with a μ-η:η carbide coordination. Both gold(i) compounds show distinct aurophilic interactions and are remarkably stable at ambient conditions. Photophysical investigations revealed intense luminescence with notable high quantum yields both in the solid state and in solution.
配体[{MeSiC≡CC(NDipp)}Li(thf)]（Dipp = 2,6 - 二异丙基苯基）用于与[AuCl(tht)]（tht = 四氢噻吩）进行盐复分解反应，以得到双核炔官能化双脒基化合物[{MeSiC≡CC(NDipp)}Au]。该化合物用作多核碳化物桥连金（I）脒基配合物[Au{μ-(η:η-C≡C)}(MeSiC≡CC(NDipp))(tht)]的构建单元，这是首个具有μ-η:η碳化物配位的金（I）配合物。这两种金（I）化合物均表现出明显的亲金相互作用，并且在环境条件下非常稳定。光物理研究表明，它们在固态和溶液中均具有强烈的发光，且量子产率显著较高。
