Crystal and molecular structures of bis(tetraphenylarsonium) tris(1,2-dicyanoethylenedithiolato)molybdenate(IV), [(C6H5)4As]2[Mo(mnt)3], and its tungsten analog [(C6H5)4As]2[W(mnt)3]

Self-assembly and crystal structures of two heteronuclear complexes with [Ag2(μ-dppm)2(MeCN)2](SbF6)2 and [Bu4N]2[M(mnt)3] (M=Mo, W) as components

“…The coordination geometry around Mo is trigonal prismatic. The Mo-S distances are close to those found in compound [Ph 4 As] 2 Mo(mnt) 3 [27]. S(3)-Mo(1)-S(6) angle (88.79(9)°) is larger than the corresponding angles in [Ph 4 As] 2 Mo(mnt) 3 (ca.…”

{[Cu2Mo(C4N2S2)3(C2H3N)(C25H22P2)2]·2C4H10O·C2H3N} n

“…1). The bonding parameters around the Mo IV center are comparable to those found in the complexes (Bu 4 N) 2 -[Mo(mnt) 3 ] (Brown & Stiefel, 1973) and [Ag 2 (dppa) 2 -(MeCN) 2 ][Mo(mnt) 3 ] [dppa is bis(diphenylphosphino)amine] (Xu et al, 2002). Atom Cu1 adopts an approximately triangular-planar geometry, defined by two P atoms from two dppm ligands and one N atom from the MeCN solvent, while Cu2 adopts a distorted tetrahedral geometry, defined by two P atoms from two dppm ligands and two N atoms from two mnt ligands, leading to a zigzag chain structure (Fig.…”

catena-Poly[[[[μ-bis(diphenylphosphino)amine-κ2P:P′]bis[acetonitrilecopper(I)]]-μ-(1,2-dicyanoethylene-1,2-dithiolato)-[(1,2-dicyanoethylene-1,2-dithiolato)molybdenate(IV)]-μ-1,2-dicyanoethylene-1,2-dithiolato] acetonitrile disolvate]

“…Each Cu I centre exhibits an N 2 P 2 coordination environment with a distorted tetrahedral geometry ( Table 1). The Mo IV centre is coordinated by six Satom donors in a distorted octahedral arrangement ( Table 1) comparable to that found in the parent complex (Bu 4 N) 2 [Mo(mnt) 3 ] (Brown & Stiefel, 1973) and the ionic salt [Ag 2 (dppa) 2 (MeCN) 2 ][Mo(mnt) 3 ] (Xu et al, 2002). The CuÁ Á ÁCu distances across the bridging dppa ligands are Cu1Á Á ÁCu1 i = 3.3188 (14) and Cu2Á Á ÁCu2 ii = 3.5107 (15) Å [symmetry codes: (i) 1 À x, Ày, 1 À z; (ii) 1 À x, 2 À y, Àz], similar to that found in the parent compound [Cu 2 (dppa) 2 -(MeCN) 4 ](PF 6 ) 4 (Liu et al, 2002).…”