Heterometallic Aggregates of Copper(I) with Metalloligand Sn(edt)2 (edt = ethane-1,2-dithiolate): Syntheses and Structures of [Sn(edt)2Cl(μ-I)(μ3-I)(CuPPh
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- 作者：Yan-Gong Han ; Chao Xu ; Taike Duan ; Fang-Hui Wu ; Qian-Feng Zhang ; Wa-Hung Leung
- 刊名：Inorganic Chemistry
- 出版年：2009
- 出版时间：September 21, 2009
- 年：2009
- 卷：48
- 期：18
- 页码：8796-8802
- 全文大小：806K
- 年卷期：v.48,no.18(September 21, 2009)
- ISSN：1520-510X
文摘
The treatment of a slurry of an equimolar mixture of [Sn(edt)2] (edt = ethane-1,2- dithiolate) and [Et4N]Cl·xH2O with CuI in the presence of PPh3 gave a tetranuclear compound, [Sn(edt)2Cl(μ-I)(μ3-I)(CuPPh3)3] (1), which consists of a rectangular-pyramidal [Sn(edt)2Cl]− moiety ligated by three [Cu(PPh3)]+ fragments via the sulfur atoms of the edt2− ligands. The treatment of a slurry of [Sn(edt)2] and excess [Et4N]Br with [Cu(MeCN)4][PF6] in the presence of PPh3 afforded a pentanuclear compound, [Sn(edt)2(μ-Br)2(μ3-Br)2(CuPPh3)4] (2), which comprises two [(CuPPh3)2(μ-Br)]+ fragments symmetrically ligating an octahedral trans-[Sn(edt)2Br2]2− moiety via the sulfur and bromide atoms. Reaction of [Sn(edt)2] with [Cu(MeCN)4][PF6] and PPh3 in a mixed MeCN/CH2Cl2 solution yielded a novel octanuclear compound, [{Sn(edt)2}3(μ-OH)3Cu5(PPh3)8][PF6]2 (3), which may be described as a triangular [{Sn(edt)2}3(μ-OH)3]3− core chelated by three [Cu(PPh3)2]+ species and capped by two [Cu(PPh3)]+ species. The luminescent properties of compounds 1, 2, and 3 were investigated in a CH2Cl2 solution at room temperature. Upon excitation at λ > 360 nm, these compounds are luminescent in CH2Cl2 solution with emissions having maxima at 422, 515, and 494 nm, respectively.