Synthesis, structure, and physical properties of the bis(7,7,8,8-tetracyano-p-quinodimethane) salt of the paramagnetic cluster tris[(di-.mu.-chloro)(hexamethylbenzene)niobium], [Nb3(.mu.-Cl)6(C6Me6)3]2+(TCNQ)22-

Formation of Long, Multicenter π‐[TCNE]22− Dimers in Solution: Solvation and Stability Assessed through Molecular Dynamics Simulations

“…[8] Other organic radicals have been shown to exhibit long, multicenter bonding; e.g. other radical anions such as reduced tetracyanobenzene (TCNB -) [9] or 7,7,8,8-tetracyanop-quinodimethane (TCNQ -), [10][11][12] radical cations such as oxidized tetrathiafulvalene (TTF + ), [13,14] or neutral radicals such as phenalenyl derivatives. [15,16] Long, multicenter bonding has also been observed in the zwitterionic π-[TTF δ+ •••TCNE δ-] charge-transfer dyad.…”

Four-electron reduction of dinitrogen during solution disproportionation of the organodimetallic (η-C5Me4R)2Ta2(µ-Cl)4(R = Me, Et) to a new µ-η1,η1-N2 complex and odd-electron organotrimetallic cluster

“…Organotrimetallic Group 4-6 clusters have attracted theoretical interest. 32 Group 5 halide clusters with arene 33 or cyclopentadienyl 34 ligands are uncommon in comparison to late metal clusters with p-acid ligands, and odd-electron organotrimetallics have unusual electronic and magnetic properties. We are interested in whether the trinuclear cation can be reduced.…”

The structure of tetrakis(acetonitrile)tetrachlorouranium(IV), [UCl4(C2H3N)4]

“…In an effort to form a metal-metalbonded uranium trimer of the type [Ma(C6Me6)C16 ]n+, analogous to those of niobium and zirconium (Goldberg, Spivack, Stanley, Eisenberg, Braitsch, Miller & Abkowitz, 1977;Stollmaier & Thewalt, 1981), a mixture of UCI 4 (760 mg), A1 (42 mg), A1CI 3 (194 mg) and C6Me 6 (1 g) was heated in a sealed glass tube for 4 h at 413 K. The reaction product was first extracted 0108-2701/84/071186-03501.50 …”