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A novel 1-D heterotrimetallic polymer {O2MoS2(CuCN)Ni(1,10-phen)2}n containing cyanide ligands was synthesized and characterized by single-crystal X-ray diffraction studies. This compound can be described as an “8”-like helical chain that the CN− ligands are bridged between Ni and Cu atoms while the μ2-S and μ2-O atoms are bridged between Mo and Cu and Mo and Ni atoms, respectively.

Mercaptotin complexes are difficult to synthesize since they are usually transient intermediates. Here, we report the synthesis and crystal structure of two examples of stable hexamercaptotin complexes [N(CH 3 ) 4 ] 2 Sn(SH) 6 ( 1 ) and [N(C 2 H 5 ) 4 ] 2 Sn(SH) 6 ( 2 ), and discuss their stability by use of quantum chemistry method. Both the complexes 1 and 2 were obtained by hydrothermal synthesis and were crystallized in monoclinic space group, C2/m, Z =8, a =25.724(8), b =18.183(6), c =9.097(3) for 1 , and C2/c, Z =4, a =14.0733(14), b =14.4018(14), c =13.2538(13) for 2 . Single crystal X-ray diffraction analysis revealed that the Sn(IV) centers of 1 and 2 are octahedrally coordinated to six [SH] − ligands and all of the six hydrosulfuryl groups are located in terminal positions. The computational results of quantum chemistry method show that highly symmetric coordination of [SH] − ligands can be effective in stabilizing stannanethiols entities.

The first octanuclear tin(IV)–oxosulfide complex (NH 4 ) 2 (Et 4 N) 4 [Sn 8 S 12 O 4 (SPh) 6 ] has been synthesized by mixing stoichiometric amount of Sn(SPh) 4 and (NH 4 ) 2 WOS 3 and thiophenol in DMF. The compound was crystallized in orthorhombic space group Cmcm, Z=4, a=18.0463(4) A , b=15.7599(2) A , c=19.1914(5) A , a single crystal X-ray diffraction analysis revealed two coordinate modes of the tin atoms: five-coordinated distorted rectangular pyramid SnOS 4 and six-coordinated octahedron SnO 3 S 3 .

The cyanide act as a bridging ligand between metal atoms and it usually gives to polymeric compound with 2D or 3D networks, two novel heterometallic polymers containing CN ligands {[Et4N]2[WS4Cu4(CN)2Br2]}n (1) and [ZnCu4(CN6(dmf)4]n (2) have been synthesized and characterized in this paper.

Due to a revision in the experimental method the authors of above paper would like to correct wrongly refined structures. Explanation of fault: In our previous paper entitled “Novel hexamercaptotin: synthesis and characterization of [N(CH3)4]2Sn(SH)6 and [N(C2H5)4]2Sn(SH)6 complexes” in Inorganic Chemistry Communications, 2001, 4, 643–647, the following two errors were made in solving the structures