Novel One-, Two-, and Three-Dimensional Selenidostannates Templated by Iron(II) Complex Cation

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• 作者：Chunying Tang ; Fang Wang ; Jialin Lu ; Dingxian Jia ; Wenqing Jiang ; Yong Zhang
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：September 2, 2014
• 年：2014
• 卷：53
• 期：17
• 页码：9267-9273
• 全文大小：471K
• ISSN：1520-510X

文摘

The novel iron selenidostannates [Fe(bipy)₃]Sn₄Se₉路2H₂O (1) and [Fe(bipy)₃]₂[Sn₃Se₇]₂路bipy路2H₂O (2) (bipy = bipyridine) were prepared by the reactions of Sn, Se, FeCl₂路4H₂O, bipy, and dien with/without KSCN under hydrothermal conditions (dien = diethylenetriamine). In 1, four SnSe₅ units condense via edge sharing to form the novel 3-D framework selenidostannate _{鈭?/sub>³[Sn4Se9^{2鈥?/sup>] containing an interpenetrating channel system. The [Fe(bipy)3]2+ cations are accommodated in the different channels according to the conformation of the [Fe(bipy)3]2+ cation. In 2, three SnSe5 units share edges to form a 2-D 鈭?/sub>2[Sn3Se72鈥?/sup>] layered anion, while two SnSe5 units and one SnSe4 unit are connected via edge sharing, forming a 1-D 鈭?/sub>1[Sn3Se72鈥?/sup>] chainlike anion. The 鈭?/sub>1[Sn3Se72鈥?/sup>], [Fe(bipy)3]2+, bipy, and H2O species are embedded between the 鈭?/sub>2[Sn3Se72鈥?/sup>] layers. 2 is the first example of a selenidostannate constructed by both 鈭?/sub>2[Sn3Se72鈥?/sup>]and 鈭?/sub>1[Sn3Se72鈥?/sup>] anions. The coexistence of 1-D 鈭?/sub>1[Sn3Se72鈥?/sup>] and 2-D 鈭?/sub>2[Sn3Se72鈥?/sup>] anions in 2 might support the possible reaction mechanism that the 鈭?/sub>2[Sn3Se72鈥?/sup>] anions are formed by condensation of the 鈭?/sub>1[Sn3Se72鈥?/sup>] chains. 1 and 2 exhibit band gaps at 1.43 and 2.01 eV, respectively.}}