Structural transformation of selenidostannates from 1D to 0D and 2D via a stepwise amine-templated assembly strategy
作者： Dandan Hu , Yingying Zhang , Huajun Yang , Jian Lin , Tao Wu
DOI: 10.1039/C7DT01546A
关键词:
摘要: We investigated the amine-induced structure transformation of four selenidostannates, i.e. [Sn3Se7Fe(TEPA)]n (1), {[Sn2Se6]·4(H+-PR)} (2), {[Sn2Se6]·2[Fe(en)3]} (3), and {[Sn3Se7]n·2n(H+-DBN)} (4) (TEPA = tetraethylenepentamine, PR piperidine, en ethylenediamine, DBN 1,5-diazabicyclo[4.3.0]non-5-ene), which were characterized by single-crystal X-ray diffraction UV-vis spectroscopy. The TEPA-induced 1D chain in 1 can undergo cleavage Se–Fe Se–Sn bonds to form a 0D dimer unit [Sn2Se6]2− observed 2 3, induced en, respectively. More interestingly, under induction templates, such counterintuitively fuse into 2D layered [Sn3Se7]n2n− through removal [Fe(TEPA)] species reformation Sn–Se bonds. Moreover, these selenidostannates with different structural dimensionalities display photocurrent responses, make them hold some promise as potential semiconducting material applied photoelectric devices.
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