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Different Effects of a Cotemplate and [(Transition-Metal)(1,10-Phenanthroline)m]2+ (m = 1–3) Complex Cations on the Self-assembly of a Series of Hybrid Selenidostannates Showing Combined Optical Properties of Organic and Inorganic Components

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journal contribution
posted on 03.10.2011, 00:00 by Guang-Ning Liu, Guo-Cong Guo, Ming-Jian Zhang, Jin-Shuang Guo, Hui-Yi Zeng, Jin-Shun Huang
1,10-Phenanthroline (phen) and monoprotonated methylamine molecules were used as a novel cotemplate to direct the formation of a new inorganic–organic hybrid selenidostannate, (CH3NH3)4(Sn2Se6)·6phen (1); while the utilization of three types of transition-metal (TM) phen complex cations with the TM/phen ration of 1:1, 1:2, and 1:3 as structure directors affords {[Mn(phen)2]22-Sn2Se6)}·H2O (2a), {[Fe(phen)2]22-Sn2Se6)} (2b), {[Mn(phen)]24-Sn2Se6)}n (3), {[Mn(phen)2](Sn2Se5)}n (4), and [Fe(phen)3]n(Sn3Se7)n·1.25nH2O (5). These compounds show diverse structures with the selenidostannate anions varying from discrete, μ2- and μ4- (Sn2Se6)4– anions, to one-dimensional (1-D) 1(Sn2Se52–) anionic chains, and two-dimensional (2-D) extended 2(Sn3Se72–) anionic layers, demonstrating different structure-directing abilities of the cotemplate and the three types of TM phen complex cations. This work clearly indicates that the approach of modifying the number of the free coordination sites of unsaturated TM phen complex cations is very exciting as a way to synthesize novel hybrid chalcogenidometalates. Of particular interest, the present compounds exhibit interesting optical properties that reflect the combined effects of both photoluminescence-active organic components and semiconducting inorganic chalcogenidometalate anionic networks.