Zobrazeno 1 - 10
of 51
pro vyhledávání: '"S K, Talapatra"'
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 23:519-522
Crystals of the title compound are triclinic. Space groupP1,a=8.652(2),b=5.184(2),c=5.050(2)A,α=100.26(3)°,β=100.33(4)°, γ=72.82(3)°. The structure was solved by direct methods and refined by a full-matrix, least-squares procedure toR=0.033 for
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 23:177-180
The title compound (C10H13N5O2S,Mr=267.3) crystallizes in the orthorhombic space groupP212121 witha=7.579(8),b=7.686(2) andc=20.941(4)A,V=1220(1)A3,Dx=1.456 gm cm−3,Z=4,μ=23.6 cm−1,F(000)=560 andT=293 K. The structure was solved by direct method
Publikováno v:
ChemInform. 22
C 10 H 9 NO 2 cristallise dans P2 1 /c avec a=6,777, b=8,706, c=15,375 A, β=96,02°, Z=4; affinement jusqu'a R=0,065. Le cycle indole et le groupe acetoxy sont presque plans; le groupe acetoxy forme un angle de 66,1° avec le cycle pyrrole. Dans le
Publikováno v:
ChemInform. 26
Publikováno v:
ChemInform. 26
Autor:
Pranab Kumar Lala, Amit Saha, K. Bhattacharyya, A. Mukhopadhyyay, S. K. Talapatra, S. K. Mazumdar
Publikováno v:
ChemInform. 29
In the title compound, methyl 2-{6′-ethyl-2′,3′,5′,6′,7′,8′-hexahydro-4-hydroxy-2-oxo- spiro[1H-indole-3(2H),1′(8a'H)-indolizin]-7′-yl}-3-methoxyacrylate, C22H28N2O5, the indole molecule is not planar. The planarity of the atom gr
Autor:
A. Mukhopadhyyay, S. K. Talapatra, S. K. Mazumdar, K. Bhattacharyya, Amit Saha, Pranab Kumar Lala
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 54:399-401
In the title compound, methyl 2-{6′-ethyl-2′,3′,5′,6′,7′,8′-hexahydro-4-hydroxy-2-oxo- spiro[1H-indole-3(2H),1′(8a'H)-indolizin]-7′-yl}-3-methoxyacrylate, C22H28N2O5, the indole molecule is not planar. The planarity of the atom gr
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 52:2076-2078
The two independent molecules of C 21 H 23 N 5 O 3 in the asymmetric unit of the title compound possess similar conformations. In each molecule, an almost planar purine ring is fused to a reduced pyrimidine ring. The dihedral angles between the fused
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 50:952-954
The molecular structure of C 18 H 21 N 5 O 3 S comprises an almost planar purine ring fused to a reduced pyrimidine ring. An intramolecular O...O distance of 2.492 (3) A indicates the presence of hydrogen bonding
Autor:
A. P. Sharma, Nibaran Das, Gabriele Bocelli, M. Datta, S. K. Mazumdar, A. P. Ollapally, S. K. Talapatra, A. K. Das
Publikováno v:
Journal of Crystallographic and Spectroscopic Research. 23:301-303
The present compound crystallizes in the space groupP212121 withZ=4 and cell parametersa=21.687(2),b=8.155(3),c=5.883(2)A. The structure was solved by direct methods and refined by full-matrix least-squares to a finalR value of 0.045 for 1153 observe