Structure of [CH3TMPP]2Co2Cl6 [CH3TMPP = tris(2,4,6-trimethoxyphenyl)methylphosphonium]

Oxidative Stannylation with K6Sn2Se6/SnCl2: Synthesis and Crystal Structures of SnCl3-Substitutedpseudo-Tetrahedral Cobalt(III) Complexes

“…[6] More frequently, either the terminal ligands are negatively charged as in [Co 2 (µ-Cl) 3 (C 5 Me 4 R) 2 ] ϩ (R ϭ Me, Et) [7,8] and thus give reason for a Co III compound, or the Co II complex is only doubly µ 2 -Cl bridged, leading to the preferred tetrahedral coordination pattern. For instance, the latter is found in [Co 2 Cl 4 (µ-Cl) 2 ] 2Ϫ , [9,10] in the trinuclear dianion [{CoCl 2 } 2 {Co(thf) 2 }(µ 2 -Cl) 4 ] 2Ϫ [11] or in the tetranuclear complex [{CoCl(thf)} 2 {Co(thf) 2 } 2 (µ-Cl) 6 ]. [12] The anions in 1 ( Figure 2) or 2 ( Figure 3) are strongly related and only differ in one ligand at the Co center.…”

Transition‐Metal Complexes with Ferrocene‐Bridged Bis(imidazolin‐2‐imine) and Bis(diaminocyclopropenimine) Ligands

“…Nevertheless, the structure of 9c is interesting given that no structures containing the [Ni 2 Cl 6 ] 2– dianion are present in the Cambridge Structural Database . For M = Fe, Co, Cu, and Zn, first‐row transition‐metal analogues of the type [M 2 Cl 6 ] 2– were structurally characterized as phosphonium salts, whereas a vanadium salt was characterized in case of M = Mn . In the structure of 12 , the cyclopentadienyl rings adopt a synclinal eclipsed conformation with a torsion angle C i –Ct–Ct′–C i ′ of τ = 70.7°.…”

“…[29] For M = Fe, [30] Co, [31] Cu, [32] and Zn, [33] first-row transition-metal analogues of the type [M 2 Cl 6 ] 2-were structurally characterized as phosphonium salts, whereas a vanadium salt was characterized in case of M = Mn. [34] In the structure of 12, the cyclopentadienyl rings adopt a synclinal eclipsed conformation with a torsion angle C i -Ct-Ct′-C i ′ of τ = 70.7°.…”

“…Ferrocene-related parameters were very similar to those observed for 9 and are therefore not presented here. [a] Data for M = Mn, [35] Fe, [30] Co, [31] Cu, [32] and Zn [33] from literature.…”