Division of Applied Chemistry & Frontier Chemistry Center, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.
Chem Commun (Camb). 2018 Oct 2;54(79):11136-11139. doi: 10.1039/c8cc06490c.
The epistatic double hydrogen bonds that arise from the presence of a pendant carboxy group in a gold isocyanide complex result in strong aurophilic interactions in a magenta-emitting polymorph. This is due to the lack of the typically antiparallel dimer arrangements, which often prevent the formation of strong aurophilic interactions. Furthermore, this polymorph shows hypsochromically shifted luminescence mechanochromism.
金异氰化物配合物中存在侧挂羧基基团时会产生超共轭的双重氢键，从而导致在呈现洋红色发射的多晶型物中形成强烈的金键相互作用。这是因为缺少通常的反平行二聚体排列，而这种排列常常会阻止强烈的金键相互作用的形成。此外，这种多晶型物表现出蓝移的光致变色机械变色。
