Received 9 November 2012
aDepartment of Materials Chemistry, School of Materials Science and Engineering, Key Laboratory of Nonferrous Metal of the Ministry of Education, Central South University, Changsha 410083, People's Republic of China, and bChinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution (CNERC-CTHMP), Environmental Engineering Institute, School of Metallurgical Science and Engineering, Central South University, Changsha 410083, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
In the title compound, [Ag6(C12H10N3OS)6]·4C3H7NO, the hexanuclear complex molecule lies about an inversion center. The six Ag atoms form a distorted octahedron, with AgAg distances in the range 2.933 (1)-3.401 (1) Å. Each Ag atom is surrounded by one N atom and two thiolate S atoms from two deprotonated 2-hydroxy-1-naphthaldehyde thiosemicarbazone ligands. Each ligand coordinates three Ag atoms via a bridging thiolate S atom and a monodentate N atom, thus two Ag3S3 hexagonal rings are linked together. Two dimethylformamide solvent molecules are located in four sets of sites with half-occupancy and form OH-N hydrogen bonds to the complex molecule. Intramolecular O-HN hydrogen bonds are also present. The discrete hexanuclear clusters are further linked through - interactions into layers parallel to (001), the shortest distance between the centroids of aromatic rings being 3.698 (2) Å.
For the structure and luminescent properties of d10 metal complexes, see: Brito et al. (2011); Forward et al. (1995). For structures of related compexes with thiosemicarbazone Schiff base ligands, see: Ashfield et al. (2004); Castiñeiras & Pedrido (2009); Li et al. (2010); Onodera et al. (2007); Pedrido et al. (2009); Sun (2011); Sun et al. (2012); Sun & Chai (2012); Xu et al. (2011). For bond-length data, see: Han et al. (2004).
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: YK2079 ).
The authors acknowledge financial support from the National Science and Technology Support Program (2012BAC12B03), the Postdoctoral Science Foundation of Central South University and the Fundamental Research Funds for the Central Universities (No. 2012QNZT001).
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