SnI₄∙(S₈)₂, a novel adduct-type infrared second-order nonlinear optical crystal

Sheng-Ping Guo*, Yang Chi, and Huai-Guo Xue

School of Chemistry and Chemical Engineering, Yangzhou University

Abstract:A simple adduct from tin tetraiodide SnI₄and octasulfur S₈,vis.SnI₄∙(S₈)₂(1), is obtainedemployinga facile reaction. The combination of Sn⁴⁺ionswithd¹⁰electron configuration, acentric SnI₄tetrahedra, and lone-pair effects of S₈, makes 1 a phase-matchable infrared NLO crystal with a moderate SHG response and a very high laser damage threshold, which is well confirmed by the DFT calculations.

Angew. Chem. Int. Ed., 2018, online,IF = 11.994

链接：https://doi.org/10.1002/anie.201803482