Mouhamadou Birame Diop

Crystal structure of bis-(2-methyl-1H-imidazol-3-ium) tetra-chlorido-cobaltate(II).

The tetrahedral tetrachloridocobaltate(II) anion is linked to bis(2-methyl-1H-imidazol-3-ium) cations through N—H⋯Cl hydrogen bonds, resulting in a layered arrangement parallel to (100).

Crystal structure of di­chlorido­bis­(dimethyl N-cyano­dithio­imino­carbonate)cobalt(II)

The title cobalt(II) complex consists of a CoCl2 moiety linked to the terminal N atoms of two dimethyl N-cyanodithioiminocarbonate molecules which leads to an overall distorted tetrahedral configuration around the CoII atom. Weak C—H⋯Cl and C—H⋯S hydrogen-bonding interactions consolidate the packing of the structure.

Crystal structure of bis­(2-methyl-1H-imidazol-3-ium) di­hydroxidobis(oxalato-κ2O1,O2)stannate(IV) monohydrate

The SnIV atom in the anion of the title compound is six-coordinated by two OH groups and four O atoms from two chelating oxalate ligands. Several N—H⋯O and O—H⋯O hydrogen bonds involving the stannate dianions, the cations and the water molecules result into a three-dimensional network structure.

Crystal structure of 2-methyl-1H-imidazol-3-ium aqua­tri­chlorido­(oxalato-κ2O,O′)stannate(IV)

N—H⋯O, N—H⋯Cl and O—H⋯O hydrogen bonds between cations and anions in the complex salt (C4H7N2)+[Sn(H2O)Cl3(C2O4)]− are responsible for the formation of a three-dimensional network structure.

Acetonyltri­phenyl­phospho­nium 2,3,5-tri­phenyl­tetra­zolium tetra­chlorido­cuprate(II)

The product of the reaction of CuCl2·2H2O with both one equivalent of acetonyl triphenylphosphonium chloride and one equivalent of 2,3,5-triphenyltetrazolium chloride is described. The dianion, [CuCl4]2−, adopts a distorted tetrahedral geometry.

Crystal structures of the two salts 2-methyl-1H-imidazol-3-ium nitrate-2-methyl-1H-imidazole (1/1) and 2-methyl-1H-imidazol-3-ium nitrate.

The title salts, C4H7N2 +·NO3 −·C4H6N2, (I), and C4H7N2 +·NO3 −, (II), are composed of hydrogen-bonded chains along [001] and [100] for (I) and (II), respectively.

Crystal structure of 2-methyl-1H-imidazol-3-ium hydrogen oxalate dihydrate.

In the title molecular salt 2-methyl-1H-imidazol-3-ium hydrogen oxalate dihydrate, N—H⋯(O,O) and O—H⋯O hydrogen bonds link the components into a bilayer-like assembly.

Triorganotin carboxylates – synthesis and crystal structure of 2-methyl-1H-imidazol-3-ium catena-O,O′-oxalatotriphenylstannate

Abstract The reaction of bis(2-methyl-1H-imidazol-3-ium) oxalate, [C4H7N2]2[C2O4], and bis(triphenyltin) oxalate, [(Ph3Sn)2(C2O4)], in methanol at room temperature yielded the formation of 2-methyl-1H-imidazol-3-ium catena-O,O′-oxalatotriphenylstannate, [C4H7N2][Ph3Sn(C2O4)] (1), which crystallizes in the monoclinic space group P21/c with Z=8, a=16.9334(14) Å, b=17.3251(14) Å, c=14.5114(10) Å, β=90.590(2)°, and V=4257.0(6) Å3. The oxalate ligand of 1 displays a bridging coordination mode and thus links two SnPh3 moieties through an axial coordination leading to the propagation of infinite polymeric chains along the c axis. All Sn(IV) atoms exhibit a trigonal bipyramid geometry. The negative charge of [Ph3Sn(C2O4)]- moieties is compensated by the presence of surrounding noncoordinating 2-methyl-1H-imidazol-3-ium cations. From a supramolecular point of view, the Sn-based chains are connected to one another through N-H···O hydrogen bond interactions involving oxalate ligands of distinct strands and doubly by the [C4H7N2]+ cations. The topology of the resulting crystal packing can be described as a two-dimensional layer network.

Crystal structure of the triphenyltin(IV) chloride dimethyl N-cyanodithioiminocarbonate adduct

Abstract Reaction of dimethyl N-cyanodithioiminocarbonate, NCNC(SCH3)2 (L), and SnPh3Cl led to the formation of [ClPh3SnNCNC(SCH3)2] (1) which crystallizes in the monoclinic space group C2/c with Z=8, a=19.152(2) Å, b=12.8659 (16) Å, c=19.063(3) Å, β=108.608(3) and V=4451.6(10) Å3. The structure of 1 consists of a SnPh3 moiety trans-coordinated in apical positions by one L ligand, N-coordinated, and one chlorine atom involving a trigonal bipyramid geometry around the Sn(IV) atom. To our knowledge, this is the first isolation of a discrete triorganotin(IV) complex with a N-cyanodithioiminocarbonate adduct. The structural characterization of 1 was completed by infrared and nuclear magnetic resonance spectroscopy, and elemental analysis which confirm the X-ray elucidation.

Crystal structure of di-chlorido-bis-(dimethyl N-cyano-dithio-imino-carbonate)zinc.

The title complex consists of a ZnII atom coordinated by two Cl atoms and two dimethyl N-cyanodithioiminocarbonate ligands bonded through the terminal N atom in a distorted tetrahedral manner. The complex molecules interact through C—H⋯Cl and Cl⋯S interactions to give a layered structure in the crystal.