Yu-Han Jiang

Iodido[5-methyl-1H-benzimidazole-2(3H)-thione-κS]bis­(triphenyl­phosphane-κP)copper(I) methanol monosolvate

In the title compound, [CuI(C8H8N2S)(C18H15P)2]·CH3OH, the coordination environment around the CuI atom is distorted tetrahedral, defined by two P atoms of two triphenylphosphane ligands, one S atom of a 5-methyl-1H-benzimidazole-2(3H)-thione ligand and one I atom. The complex molecules and the methanol solvent molecules are connected via N—H⋯O and O—H⋯I hydrogen bonds, forming a chain along [010]. An intramolecular N—H⋯I hydrogen bond is also observed.

Lanthanide contraction and chelating effect on a new family of lanthanide complexes with tetrakis(O-isopropyl)methyle-nediphosphonate: synthesis, structures and terahertz time-domain spectroscopy

Sixteen lanthanide–diphosphate complexes [LnL2(H2O)4Cl]Cl2 (Ln = La3+ for 1, Ln = Ce3+ for 2), [LnL2(H2O)4]Cl3·6H2O (Ln = Nd3+ for 3, Ln = Sm3+ for 4, Ln = Eu3+ for 5, Ln = Gd3+ for 6, Ln = Tb3+ for 7, Ln = Dy3+ for 8, Ln = Er3+ for 9), {[LaL2(H2O)4Cl]Cl2}2 (10), [PrL2(OH)2(H2O)Cl] [PrL2(H2O)4Cl]Cl2 (11), [LaL2(H2O)5Cl]Cl2·2H2O (12), [YbL2(H2O)3Cl]Cl2·H2O (13), [NdL2(H2O)3Cl]Cl2·3H2O (14), [HoL2(H2O)Cl2]Cl·H2O (15), [Sc2L2(H2O)4(OH)2]Cl4·4H2O·2CH3OH (16) (L = tetrakis(O-isopropyl)methylenediphosphonate) have been synthesized by the reaction of lanthanide chlorides and L ligand in the solvent of acetonitrile (with ethanol or DMF) at room temperature. The title complexes were characterized by IR, elemental analysis, single-crystal X-ray diffraction analysis, thermal analysis, 1HNMR and 31PNMR spectroscopy. Complexes 1–15 are mononuclear complexes and complex 16 is a binuclear cluster complex. Complex 12 is the intermediate of complex 1. Complexes 11–13 display a one-dimensional chain formed by hydrogen bonds and the structures of complexes 14, 16 can be simplified as two-dimensional mesh 63 topology formed by hydrogen bonds. In those lanthanide complexes, the lanthanide ion with an atomic number smaller than Pr element tends to form a nine-coordinated structure and that with the atomic number larger than Pr element tends to form an eight or lower number-coordinated structure. Pr element has two kinds of coordination situations, with coordination numbers of nine or eight. The terahertz (THz) time-domain spectra of these complexes were also studied.

Crystal structure of bis(triphenylphospine-κP)(methanol-κO)(tetrafluoroborate-κF)silver(I), [Ag(PPh3)2(CH3OH)BF4], C37H34AgBF4OP2

Abstract C37H34AgBF4OP2, monoclinic, P21/n (no. 14), a = 13.748(1) Å, b = 12.757(1) Å, c = 19.716(2) Å, β = 92.657(1)°, V = 3454.1 Å3, Z = 4, Rgt(F) = 0.0361, wRref(F2) = 0.1018, T = 298 K.

3-Amino-1H-1,2,4-triazole-5(4H)-thione–4,4′-bipyridine (1/1)

The title two-component molecular crystal, C10H8N2·C2H4N4S, was obtained unexpectedly by reaction of Zn(NO3)2·6H2O, NH4BF4 with 3-amino-1,2,4-triazole-5-thione (3-AMT) and 4,4′-bipyridine in water. The dihedral angle between the pyridine rings in the 4,4′-bipyridine molecule is 17.00 (13)°. In the crystal, N—H⋯N and N—H⋯S hydrogen bonds between the components lead to the formation of a three-dimensional network. Furthermore, the structure features face-to-face π–π stacking interactions between the 4,4′-bipyridine and triazole rings, with a centroid–centroid distance of 2.976 (2) Å.

4,4′-Bipyridine-1,1′-diium bis­(1,3-benzo­thia­zole-2-thiol­ate)

In the title salt, C10H10N2 2+·2C7H4NS2 −, the complete 4,4′-bipyridine-1,1′-diium dication is generated by a center of symmetry. In the crystal, N—H⋯N hydrogen bonds are observed between the cations and anions.

Crystal structure of bis(triphenylphospine-kP)-dichloropalladium( II) —acetonitrile (1:1), [PdCl2(C18H15P)2] · CH3CN

C38H33Cl2NP2Pd, monoclinic, C12/c1 (no. 15), a = 12.056(1) Å, b = 14.393(1) Å, c = 20.002(2) Å, * = 92.372(1)°, V = 3467.8 Å, Z = 4, Rgt(F) = 0.070, wRref(F ) = 0.178, T = 298 K.

Poly[bis­[μ-1,3-bis­(diphenyl­phosphan­yl)propane-κ2P:P′]-di-μ-thio­cyanato-κ2S:N;κ2N:S-disilver(I)]

In the title coordination polymer, [Ag2(NCS)2(C27H26P2)2]n, two centrosymmetrically related Ag+ cations are linked by two thiocyanate anions into binuclear eight-membered macrocycles. The Ag⋯Ag separation within the macrocycle is 5.4400 (6) Å. The distorted tetrahedral coordination about each metal atom is completed by the P atoms of two bridging 1,3-bis(diphenylphosphanyl)propane ligands, forming polymeric ribbons parallel to the a axis.