An asymmetric Pt diimine acetylide complex providing unique luminescent multinuclear sandwich complexes with Cu salts
An asymmetric Pt diimine acetylide complex providing unique luminescent multinuclear sandwich complexes with Cu salts
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一种不对称 Pt 二亚胺乙炔络合物，可与铜盐形成独特的发光多核夹心络合物
DOI：
10.1039/d1cc07108d
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发表时间：
2022
影响因子：
4.9
通讯作者：
Umakoshi Keisuke
中科院分区：
文献类型：
--
作者：
Horiuchi Shinnosuke;Hiroiwa Hirotaka;Sakuda Eri;Arikawa Yasuhiro;Umakoshi Keisuke
本文报道了两种不同乙炔基的不对称铂配合物单元负载的夹心配合物的形成和物理性质。通过两种对称铂配合物之间的乙炔基复分解反应得到不对称铂配合物单元。Cu离子的引入有效地抑制了可逆的乙炔交换反应，得到了独特的手性Pt4Cu3和非手性Pt2Cu4Br4夹心配合物。夹心配合物在固态下具有中等的光致发光，其物理化学性质取决于夹心结构。这些结果表明，不对称的铂配合物单元可以通过不稳定的配位键和弱的非共价相互作用的协同作用，得到显着的组装结构。
The formation and photophysical properties of two types of sandwich complexes supported by asymmetric Pt complex units having two different acetylide moieties are reported. The asymmetric Pt complex unit was obtained via acetylide metathesis reaction between two types of symmetric Pt complexes. The reversible acetylide exchange reaction was effectively suppressed by the incorporation of Cu ions to give unique chiral Pt4Cu3 and achiral Pt2Cu4Br4 sandwich complexes. The sandwich complexes exhibited moderate photoluminescence in the solid state, and their photophysical properties depended on the sandwich structures. These results suggest that asymmetric Pt complex units can give remarkable assembled structures by the concerted effect of labile coordination bonds and weak noncovalent interactions.