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Octahedral and Cyclic [Ag 6 ] Cluster Cores Stabilized by {Ag 3 (Spz) 3 (N‐triphos) 3 } Motifs [HSpz = Pyrazine‐2‐thiolate, N‐triphos = Tris((diphenylphosphanyl)methyl)amine]: Ag···Ag Interactions
Author(s) -
Ni QingLing,
Zhang Fang,
Huang TingHong,
Wu XuePeng,
Wang XiuJian,
Liang GuangMing,
Yang KunGuo
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500668
Subject(s) - triphos , pyrazine , octahedron , crystallography , tris , chemistry , cluster (spacecraft) , stereochemistry , amine gas treating , molecule , crystal structure , organic chemistry , biochemistry , computer science , programming language
The complexes [Ag 12 (Spz) 12 (N‐triphos) 2 ][Ag 3 (Spz) 3 (N‐triphos)] 2 · (DMF) 6 ( 1 ) and [Ag 18 (Spz) 12 (N‐triphos) 4 (CF 3 CO 2 ) 6 ] ( 2 ) were synthesized and structurally characterized by X‐ray diffraction [HSpz = pyrazine‐2‐thiolate, N‐triphos = tris((diphenylphosphanyl)methyl)amine]. The central [Ag 6 ] ring with chair‐conformation in 1 and the ideally octahedral [Ag 6 ] cluster core in 2 are both stabilized by the tripodal building units of neutral [Ag 3 (Spz) 3 (N‐triphos)] compound. The Ag ··· Ag distances of the [Ag 6 ] moieties in 1 and 2 are 3.07 and 2.81 Å, respectively, exhibiting intermetallic interactions, which can enhance the stability of [Ag 6 ] 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.