Beeranahally H. Doreswamy

Hydrothermal synthesis, structure and characterization of new NASICON related potassium iron (III) pyrophosphate

A new potassium iron (III) pyrophosphate was synthesized by hydrothermal technique and characterized by X-ray studies. The compound crystallizes in a monoclinic space group,P21/c, with cell parameters,a = 7 365(2) Å,b = 10017(2) Å,c = 8.214(1) Å,β = 106.50(1)° andZ = 4. The structure has tunnel-type cavities and are congenial for ion transportation through them. The compound exhibits moderate thermal stability.

Hydrothermal synthesis, crystal structure and characterisation of Na2ZnP2O7·HCl

Na{sub 2}ZnP{sub 2}O{sub 7}{center_dot}HCl single crystals were synthesised by hydrothermal technique and characterised by X-ray diffraction method. The compound crystallises in tetragonal system with space group P4{sub 1}2{sub 1}2 and cell parameters a=7.687(5) A, c=20.529(1) A, Z=8, having tunnel type of cavities in the structure. DTA study indicates that this compound is thermally fairly stable.

Synthesis and structural characterization of CsNiP crystal

CsNiP crystals were synthesized by hydrothermal technique and characterized by the X-ray diffraction method. This alkaline transition metal phosphide crystallizes in the hexagonal system with space groupP63/mmc and cell parameters,a = 7.173(2) Å,c = 5.944(9) Å,V = 264.87(7) Å3 andZ = 2. The final residual factor isR1 = 0.0362 for 206 reflections withI > 2σ(I).

(4-Methoxy­phen­yl)(2-methyl­phen­yl)methanone

In the title compound, C15H14O2, the dihedral angle between the two benzene rings is 56.34 (7)°.

Synthesis and X-ray structure conformation of novel unsymmetrical 1,4-dihydropyridine

Methyl 2,6-dimethyl-5-(2-methylphenylcarbamoyl)-4-(3-nitrophenyl)-1,4-dihydropyridine-2-carboxylate (3) was prepared by known Hantzch method and its structure was elucidated by X-ray diffraction method.

N,N'-Bis(2-chlorophenyl)-4-(4-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxamide.

In the title compound, C27H22Cl3N3O2, the dihydropyridine ring has a boat conformation. The molecules are linked by N-H center dot center dot center dot O, N-H center dot center dot center dot Cl, C-H center dot center dot center dot N and C-H center dot center dot center dot O hydrogen bonds.

SYNTHESIS AND CRYSTAL STRUCTURE OF 1-METHYL-3-(4-NITROPHENYL)-1,2,3 TRIAZOLIUM PERCHLORATE

The isolation of stable carbenes of the Arduengo (1a) and Wanzlick (2a) type has prompted us to look for stable nitrenium ions of the related structural type 1-methyl-3-(4-nitrophenyl)-1,2,3 triazolium perchlorate (6). The title compound (C9 H11 Cl N4 O6) was isolated and structure was investigated by X-ray crystallography. It crystallizes in the monoclinic space group P21/c with cell parameters a=9.704(1) Å, b=12.580(2) Å, c=13.684(8) Å, Z=4. The molecules appear to be stacked.

Synthesis and crystal structure of 1-ethyl-3-(phenyl)-1,2,3-triazolium percholorate

The isolation of stable carbenes of the Arduengo (1a) and Wanzlick (2a) type has prompted us to look for stable nitrenium ions of the related structural type 1-ethyl-3-(phenyl)-1,2,3-triazolium perchlorate (6+). The title compound C10H14Cl N3O4 was isolated and structure was investigated by X-ray crystallography. It crystallizes in the monoclinic space group P21/c with cell parameters a=6.697(4) Å, b=9.724(9) Å, c=19.844(2) Å and Z=4. The final residual factor is R1=0.0471 for 1545 reflections with I>2σ(I). The structure exhibits intermolecular hydrogen bonds.