Octahedral and Cyclic [Ag6] Cluster Cores Stabilized by {Ag3(Spz)3(N‐triphos)3} Motifs [HSpz = Pyrazine‐2‐thiolate,N‐triphos = Tris((diphenylphosphanyl)methyl)amine]: Ag···Ag Interactions |
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| Authors: | Qing‐Ling Ni Fang Zhang Ting‐Hong Huang Xue‐Peng Wu Xiu‐Jian Wang Guang‐Ming Liang Kun‐Guo Yang |
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| Affiliation: | 1. School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P. R. China;2. Material Corrosion and Protection Key Laboratory of Sichuan Province, College of Materials and Chemical Engineering, Sichuan University of Science & Engineering, Zigong, 643000, P. R. China |
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| Abstract: | The complexes [Ag12(Spz)12(N‐triphos)2][Ag3(Spz)3(N‐triphos)]2 · (DMF)6 ( 1 ) and [Ag18(Spz)12(N‐triphos)4(CF3CO2)6] ( 2 ) were synthesized and structurally characterized by X‐ray diffraction [HSpz = pyrazine‐2‐thiolate, N‐triphos = tris((diphenylphosphanyl)methyl)amine]. The central [Ag6] ring with chair‐conformation in 1 and the ideally octahedral [Ag6] cluster core in 2 are both stabilized by the tripodal building units of neutral [Ag3(Spz)3(N‐triphos)] compound. The Ag ··· Ag distances of the [Ag6] moieties in 1 and 2 are 3.07 and 2.81 Å, respectively, exhibiting intermetallic interactions, which can enhance the stability of [Ag6] conformations. In addition, the π ··· π interactions between parallel pyrazine rings could impose on the building and the Ag ··· Ag interactions of these Ag–S clusters. |
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| Keywords: | Pyrazine‐2‐thiolate Tris((diphenylphosphanyl)methyl)amine Ag· · · Ag interactions Cluster compounds Silver |
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