Synthesis and structure of novel coordination compounds based on [Re6Q8(CN)6]4– (Q = S, Se) and (SnMe3)+

Novel compounds based on [Re6Q8(L)6]4− (Q = S, Se, Te; L = CN, OH) and their applications

“…68,69 We studied the interaction of the anionic cluster complexes [Re 6 Se 8 (CN) 6 ] 4À and SnMe 3 Cl, varying the acidity of the medium, 53 and showed that the type of polymer formed is mainly determined by the synthesis conditions, i.e., the ''charge'' stoichiometry, the temperature, and pH of the medium. 70 Unlike with transition metals, the Sn atom has, as a rule, coordination number 5 (triangular bipyramid), with the methyl groups in the equatorial plane and the axial trans-positions available to the other ligands L for coordination. 70,71…”

“…70 Unlike with transition metals, the Sn atom has, as a rule, coordination number 5 (triangular bipyramid), with the methyl groups in the equatorial plane and the axial trans-positions available to the other ligands L for coordination. 70,71…”

“…Obviously, the cyano bridges that form are efficient channels for the dissipation of the energy of the excited cluster core, which lead to a decrease in the quantum yield with the increasing number of the coordinated cyano groups. 70 Fig. 3 The belt-like one-dimensional structure of 3 with intermolecular Cu/N interactions (the distance of Cu-N is 2.697(2)A ˚) shown in dotted lines.…”

Topological Motifs in Cyanometallates: From Building Units to Three-Periodic Frameworks

“…(ii) In almost all cases, octahedral-coordinated anionic cubane clusters [W 4 Q 4 (CN) 12 ] x − ( Q = S or Te) and octahedral clusters [Nb 6 Cl 12 (CN) 6 ] x − , [ M 6 Q 8 (CN) 6 ] x − (M = Re, Mo, or W; Q = S, Se, or Te) are assembled in pcu frameworks if they are connected through the N atoms of the CN groups and the complexing spacers with octahedrally coordinated ions, such as Ga 3+ [280737], Mn 2+ [AQEMIS] (Figure top), and Fe 2+ [HEXQIL], or with polynuclear complexes, such as [Sn 4 Me 8 O 2 ] 4+ [CUCPIA], [Cd 2 (μ-H 2 O) 2 (H 2 O) 2 ] 4+ [87980], and [Mn 2 (μ-H 2 O) 2 (H 2 O) 2 ] 4+ [KUGFAU] …”

Luminescent coordination polymers based on Ca2+ and octahedral cluster anions [{M6Cli8}Cla6]2− (M = Mo, W): synthesis and thermal stability studies

“…l em observed within the current study for (Bu 4 N) 2 The effect of the cationic part on the luminescence properties of octahedral anionic clusters have been discussed in several earlier works, where reasons such as energy transfer from the excited metal cluster to the cationic unit, in particular to the aromatic part of the cationic unit and self-absorption by the material, were discussed. [46][47][48][49][50] -core, the perturbation to the cluster core influences strongly the emission properties. 51 The careful evaluation of the distances between the centers of cluster anions shows that in the case of the Ca compounds the shortest distances between neighbouring cluster anions (12.466 Å for 1 and 13.051 Å for 3) are significantly longer than that for the Bu 4 N + compounds (8.645 Å).…”