K. Palani

Crystal Structures of two Triazole Derivatives

3-Phenyl-4-amino-5-mercapto-1,2,4-triazole(PAMT), C 8 H 8 N 4 S, F.W.=192.24, triclinic, P 1¯, a=6.1698(3)Å, b=7.1765(1)Å, c=9.9894(3)Å, f =81.87(1), g =84.97(2), n =78.81(2), V=428.72(3)Å 3 , Z=2, D cal =1.489 Mgm m 3 , w =0.330 mm m 1 , F 000 =200, u (MoK f )=0.71073 Å, final R1 and wR2 are 0.0871 and 0.2170, respectively. 3-(4-Methylphenyl)-4-amino-5-mercapto-1,2,4-triazole (MAMT), C 9 H 10 N 4 S,F.W.=206.27, triclinic, P 1 , a=5.996(1)Å, b=7.582(2)Å, c=11.143(1)Å, f =73.16(1), g =89.65(2), n =87.88(1), V=484.52(3)Å 3 , Z=2, D cal =1.414 Mgm m 3 , w =2.674 mm m 1 , F 000 =216, u (CuK f )=1.5418 Å, final R1 and wR2 are 0.0656 and 0.1820, respectively. In both of the molecules the triazole rings are planar and oriented at angles of 5.7(1) and 1.4(2) with the respective phenyl rings in MAMT and PAMT. The molecules in the unit cell are stabilized by N-H…N type hydrogen bonds in addition to van der Waals forces.

Crystal Structure of [1‐(2‐phenyloxy)N[N‐cyclohexylthiouryl)] ethylamine‐(1,10‐phenanthrolinyl)]copper(II)

The title compound (C 27 H 27 CuN 5 OS) crystallizes in the orthorhombic space group Pbca with a = 11.1865(3)A, b = 13.2006(3)A, c = 34. 2304(1)A, V = 5054.75(2)A 3 , Z = 8, D cal = 1.401 Mg/m 3 at T = 293 K. The structure was solved by direct methods and refined by full-matrix least-squares procedures to final R = 0.066 and wR = 0.146 using 4445 observed reflections. The Cu(II) ion has the distorted square pyramidal geometry. The cyclohexane ring adopts chair conformation, whereas the six-membered ring containing Cu atom exhibits sofa conformation. The molecules in the crystal are stabilized by N-H...O type of intermolecular hydrogen bond networks in addition van der Waals forces.

N-[(3-Methyl-1-phenyl­sulfonyl-1H-indol-2-yl)meth­yl]-1,1-dioxo-1-benzo[d]isothia­zol-3(2H)-one

In the title compound,

3‐Bromo­methyl‐1‐phenyl­sulfonyl‐1H‐indole‐2‐carbonitrile

C_{23}H_{18}N_2O_5S_2

1-Benzene­sulfonyl-2,3-dimethyl-1H-indole

, the sulfonyl-bound phenyl ring and the thiazole group make dihedral angles of 79.2 (1) and 88.6

Synthesis and characterization of 9-(4-nitrophenyl)3,3,6,6-tetramethyl-3,4,6,7,9,10-hexahydro-1,8(2H,5H) acridinedione and its methoxyphenyl derivative

(1)^o

Crystal structure of a tetrazole derivative

, respectively, with the indole mean plane. The crystal packing is stabilized by weak intermolecular C—H \cdot \cdot \cdot O hydrogen bonds and C—H \cdot \cdot \cdot \pi and \pi - \pi interactions.

Crystal structures of two acridinedione derivatives

In the title molecule,

Crystal structures of two imidazole derivatives

C_{16}H_{11}BrN_{2}O_{2}S

Crystal structure of 2-chloro-3-(beta-nitrovinyl)quinoline

, the phenyl ring and mean plane of the indole ring system make a dihedral angle of