Photoinduced single-crystal-to-single-crystal phase transition and photosalient effect of a gold(i) isocyanide complex with shortening of intermolecular aurophilic bonds.
Photoinduced single-crystal-to-single-crystal phase transition and photosalient effect of a gold(i) isocyanide complex with shortening of intermolecular aurophilic bonds.
复制标题
DOI：
10.1039/c4sc02676d
复制
发表时间：
2015-02-01
期刊：
影响因子：
8.4
通讯作者：
Ito H
中科院分区：
文献类型：
--
作者：
Seki T;Sakurada K;Muromoto M;Ito H
我们报告的第一个光诱导的单晶到单晶相变的金配合物，涉及缩短分子间亲金键。金（i）异氰化物配合物也显示出光显效应。我们报告的第一个光诱导的单晶到单晶（SCSC）相变的金配合物，涉及缩短分子间亲金键。这也是第一个固态光致变色的金配合物。在紫外线照射下，金（i）异氰化物配合物1（1B）的蓝色发射晶体转变为弱黄色发射多晶型物1Y。X射线衍射分析表明，这种相变进行SCSC方式。在从1B到1Y的相变后，分子间Au··Au的间距从3.5041（14）nm减小到3.2955（6）nm，导致发射红移。激发态亲金键的光致缩短引发了晶体结构从1B到1Y的变化。此外，晶体1B显示出光凸效应：1B晶体在强紫外光照射下由于相变而跳跃到1Y。晶体中亲金键的形成产生晶体的机械运动。
We report the first photoinduced single-crystal-to-single-crystal phase transition of a gold complex that involves shortening of intermolecular aurophilic bonds. The gold(i) isocyanide complex also shows a photosalient effect. We report the first photoinduced single-crystal-to-single-crystal (SCSC) phase transition of a gold complex that involves the shortening of intermolecular aurophilic bonds. This is also the first solid state photochromism of a gold complex. Upon UV irradiation, the blue-emitting crystals of the gold(i) isocyanide complex 1 (1B) transform into the weakly yellow-emitting polymorph 1Y. X-ray diffraction analyses reveal that this phase transition proceeds in an SCSC manner. After phase transition from 1B to 1Y, the intermolecular Au···Au separation decreases from 3.5041(14) to 3.2955(6) Å, resulting in a red-shifted emission. The photoinduced shortening of the aurophilic bond in the excited state initiates the change in the crystal structure from 1B to 1Y. Moreover, the crystal 1B showed a photosalient effect: the 1B crystals jump upon irradiation with strong UV light owing to the phase transition into 1Y. The aurophilic bond formation in the crystal generates the mechanical movement of the crystal.
登录
查看更多内容
影响因子：
16.6
作者：
Krasovskiy, Arkady;Malakhov, Vladimir;Knochel, Paul
通讯作者：
Knochel, Paul
DOI：
10.1107/s010827011303223x
发表时间：
2013-12-01
影响因子：
0.8
作者：
Hatcher, Lauren E.;Raithby, Paul R.
通讯作者：
Raithby, Paul R.
影响因子：
3.8
作者：
Iyengar, S;Biewer, MC
通讯作者：
Biewer, MC
影响因子：
16.6
作者：
Balch, Alan L.
通讯作者：
Balch, Alan L.
影响因子：
3.7
作者：
Chung, Jong Won;Yoon, Seong-Jun;Park, Soo Young
通讯作者：
Park, Soo Young