Zhang Xu, Wang Jin-Yun, Huang Ya-Zi, Yang Ming, Chen Zhong-Ning
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, China.
Chem Commun (Camb). 2019 May 28;55(44):6281-6284. doi: 10.1039/c9cc02066g.
A feasible synthetic approach to achieve Ag8, Ag16 and Ag29 silver(i) nanoclusters is reported by the use of 1,8-diethynyl-9H-carbazole (H3decz) as a directing ligand. The silver(i) nanoclusters exhibit room-temperature photoluminescence in both solution and solid state. The emission band shows stepwise red-shifts from visible to near-infrared region with the increase of cluster nuclearity following 2 (Ag8, λem = 571 nm) → 3 (Ag16, λem = 651 nm) → 4 (Ag29, λem = 916 and 875sh nm) in fluid CH2Cl2.
报道了一种通过使用1,8 - 二乙炔基 - 9H - 咔唑（H3decz）作为导向配体来合成Ag8、Ag16和Ag29银（I）纳米团簇的可行方法。银（I）纳米团簇在溶液和固态中均表现出室温光致发光。在流体CH2Cl2中，随着团簇核数从2（Ag8，λem = 571 nm）增加到3（Ag16，λem = 651 nm）再增加到4（Ag29，λem = 916和875sh nm），发射带呈现出从可见光到近红外区域的逐步红移。
