✍ Scribed by Chen Ling; Yu Heng; Wu Liming; Du Wenxin; Gao Xiancheng; Lin Ping; Zhang Wenjian; Cui Chuanpeng; Wu Xintao
No coin nor oath required. For personal study only.
Three novel 1-D coordination polythiometalates have been synthesized and characterized by single-crystal X-ray crystallography, and their electrical properties have been studied. Compound + +[W 4 Ag 6 S 16 ] ' [Ca(DEAC) 6 ], , n 1 crystallizes in the monoclinic space group P2 1 /n with a ؍ 13.769(3), b ؍ 11.613(2), c ؍ 24.153(5) A s , ؍ 96.31(3)3, V ؍ 3838.7(13) A s , and Z ؍ 2 with R(wR2) ؍ 0.0607(0.1338), the polymeric anions in 1 feature a novel hanging ladder-like polymeric chain which can also be described as double helical chains bridged by silver atoms. Both compounds + +[W 2 Ag 2 S 8 ] ' [Zn(4,4 -bipy) 2 (DMF) 2 (DMSO) 2 ], , n 2 and + +[W 2 Ag 2 S 8 ] ' [Zn(4,4 -bipy) 2 (DMSO) 4
] ' (DMSO), , n 3 are composite polymers which consist of polymeric cations as well as polymeric anions. In 2, two polymeric chains simultaneously exist in the cell unit, one is the zigzag anionic chain, the other is the linear cationic chain. 2 crystallizes in the monoclinic space group C2/c with a ؍ 8.996(2) A s , b ؍ 21.728(4) A s , c ؍ 21.560(4) A s , ؍ 94.00(3)3, V ؍ 4204(2) A s 3 , and Z ؍ 8 with R(wR2) ؍ 0.0546(0.1556). The di4erence between 2 and 3 is that the latter has a linear anionic chain and a zigzag cationic chain. X-ray crystallography established the monoclinic space group C2/c with a ؍ 28.8896(2), b ؍ 11.9395(1), c ؍ 16.2341(2) A s , ؍ 122.932(1)3, V ؍ 4699.82(8) A s 3 , and Z ؍ 8 with R(wR2) ؍ 0.0438(0.1166) . 4.50؋10 ؊6 S cm ؊1 , respectively. Room temperature conductivities of 1, 2 are 2.92؋10 ؊5 . Thus, compounds 1 and 2 have semiconductor electrical properties.
📜 SIMILAR VOLUMES
Synthesis and crystal structure of 1,6-Bis-(N,Ndiethylaminothiocarbamoylimino)-1,6-diphenyl-2,5-dithiahexane are reported as well as those of its dimeric Ag I complex (as monotoluene adduct of the diperchlorate) and its tetrameric l-tetrabromo Ag I complex.