A One-Dimensional Array of Clusters:  Na₂Mo₆Cl₈(O₂CC₅H₄FeCp)₆·CH₃OH

Abstract

Reaction of Na2Mo6Cl8(OMe)6 with CpFeC5H4CO2H produces the new cluster Na2Mo6Cl8(O2CC5H4FeCp)6·HOCH3, which consists of a novel one-dimensional chain from the interactions of the Na+ ions with the carboxylate ligands of adjacent clusters. Coordination of the Na+ cations to the carboxylate ligands is reflected in the vibrational spectroscopy of the sodium salt of [Mo6Cl8(O2CC5H4FeCp)6]2-. Both the [Mo6Cl8]4+ and ferrocenecarboxylate groups are redox active. Voltammetry of the sodium salt of the cluster in DMSO reveals that the ferroceniumcarboxylate ligands dissociate with a rate constant of k = 0.6 s-1. Crystallographic data for Na2Mo6Cl8(O2CC5H4FeCp)6·CH3OH: monoclinic space group, P21/c (No. 14), a = 13.175(3) Å, b = 25.148(8) Å, c = 11.264(2) Å, β = 92.10(2)°, V = 3729(1) Å3, Z = 2.

Experimental and Theoretical Evidence of π‐d Interactions in Supramolecular Assemblies Based on TTF‐CH=CH‐Py Ligands Tethered to Mo6Xi8 Octahedral Molybdenum Halide Cluster Cores

“…4+ cluster-based transitions, as observed by Shriver and co-workers in the case of redox-active ferrocenecarboxylate [19] or electron-rich cyanide complexes [20] grafted onto [Mo 6 Cl…”

A nano-scale double-wheel-like framework: A novel assembly of six ferrocenedicarboxylate units with unusual coordination modes

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Six ferrocenedicarboxylate units with unprecedented coordination modes assembled with four Pb(II) and four Na(I) simultaneously resulting in a novel nano-scale double-wheel-like framework [Pb 4 Na 4 (O 2 CFcCO 2 ) 6 (H 2 O) 6 ] AE 6CH 3 OH AE 2H 2 O, whose structure and electrochemical properties were characterized.The design and assembly of nano-scale molecules with many ferrocene moieties has attracted great interests due to their peculiar topologies and unusual properties [1]. For further development of this kind of organometallic supermolecular complexes, much effort has been devoted to selecting appropriate central cores that can support the multi-ferrocene units and preparing ferrocenyl derivatives which can be used as excellent ligands.

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An Iron Wheel on a Tin Drum: A Novel Assembly of a Hexaferrocene Unit on a Tin–Oxygen Cluster

“…This situation is in contrast to the one reported by Shriver and coworkers, who observed spontaneous decomposition of the ferrocenyl-attached molybdenum cluster Na 2 [Mo 6 Cl 8 {O 2 C-(C 5 H 4 )Fe(C 5 H 5 )} 6 ]´CH 3 OH upon oxidation. [17] Experimental Section 3: A mixture of 1 (0.21 g, 1.0 mmol) and 2 (0.23 g, 1.0 mmol) in benzene (120 mL) was heated under reflux for 6 h using a Dean ± Stark apparatus to remove by azeotropic distillation the water formed in the reaction. The reaction mixture was filtered and the solvent removed from the filtrate in vacuo to afford a red-orange powder, which was found to be analytically pure and was shown to be 3.…”