Weak C-sp(3)-H center dot center dot center dot F-C interaction overshadows the strong C=C-H center dot center dot center dot O=C in the structure of pentafluorophenyl prop-2-ynyl carbonate as seen...
4-(2-Methylprop-2-enyl)-1-[3-(trifluoromethyl)phenyl]thiosemicarbazide (2004)
Chopra, Deepak, Choudhury, AR, Nagarajan, K, Row, Guru TN
The title compound, $C_1_2H_1_4F_3N_3S,$ is a biologically active antiimplantation agent. Its crystal structure is stabilized by intermolecular $N-H\cdot\cdot\cdot\cdot S $ hydrogen bonds, which form...
N-Phenylethyl-N'-[3-(trifluoromethyl)phenyl]- thiourea (2004)
Chopra, Deepak, Choudhury, AR, Nagarajan, K, Row, Guru TN
The title compound, $C_1_6H_1_5F_3N_2S,$ is a biologically active antiimplantation agent. The dihedral angle between the phenyl and triØuoromethylphenyl rings is $15.9 (2)^o.$ The crystal structure...
The title compound, C7H5FO3, is nearly planar, and the dihedral angle between the phenyl and carboxyl groups is 4.0 (1). There are intramolecular O–H O and intermolecularO–H...O and O–H...F...
Crystal engineering via C-H...F and C-H...\pi interactions in two substi-tuted indoles (2004)
Choudhury, AR, Nagarajan, K, Row, Guru TN
The crystal structures of 1-(4-fluorophenyl)-2-phenyl-4,5,6,7- tetrahydro-1H-indole, $C_{20}H_{18}FN$, and 1-(4-fluorophenyl)-6,6- dimethyl-2-phenyl-4,5,6,7-tetrahydro-1H-indole,$C_{22}H_{22}FN$,...
Choudhury, AR, Nagarajan, K, Row, Guru TN
The crystal and molecular structures of the three 4-ketotetrahydroindoles 2-(4-chlorophenyl)-1-(4-Øuorophenyl)-6,6-dimethyl- 4,5,6,7-tetrahydro-1H-indol-4-one$(C_{22}H_{19}ClFNO),$(I),...
Two biologically active thiophene-3-carboxamide derivatives (2003)
Vasu, *, Nirmala, KA, Choudhury, AR, Mohan, S, Saravanan, J, Narasimhamurthy, T
$The\hspace{5mm}two\hspace{5mm}title\hspace{5mm}compound,$ $2-(\lbrace (1Z)-[4-(dimethylamino)-phenyl]methylene\rbrace...
Choudhury, AR, Nagarajan, K, Row, Guru TN
The compounds 1-(2-fluorophenyl)-6,7-dimethoxy-2-phenyl-1,2,3,4-tetrahydroisoquinoline (1) and 5-(2- fluorophenyl)-6-phenyl-5,6,7,8-tetrahydro dioxolo[4,5-g]isoquinoline (2) have been studied via...
Choudhury, AR, Nagarajan, K, Row, Guru TN
Comparison of conformational features on halogen substitution in 1, 2-diaryl-6-methoxy-1, 2, 3, 4-tetrahydroisoquinolines based on crystal structures indicate that the derivatives with fluorine...
Crystal and molecular structure of 2,6-bis(4-chlorophenyl)-3-phenylpiperidin-4-one (2003)
Ompraba, G, Srinivasan, M, Perumal, S, Sekar, K, Choudhury, AR, Row, Guru TN, ...
The crystal structure of the title compound is described. The chemical formula of the compound is $C_2_3H_1_9C_l_2NO$. The compound is found to crystallize in monoclinic system with space group...
Crystal and molecular structure of 2,6-bis(4 fluorobenzylidene)cyclohexanone (2003)
Ompraba, G, Rafi, ZA, Yogavel, M, Velmurugan, D, Sekar, K, Karthikeyan, E, ...
The title compound, $C_20H_1_6F_2O$, crystallizes in triclinic system with P1 space group and the unit cell parameters are: a = 9.700(5), b = 11.834(6), c = 14.315(7) $A^o$, \alpha = 78.464(9), \beta...
Choudhury, AR, Urs, UK, Row, Guru TN, Nagarajan, K
Weak interactions involving fluorine have been analyzed in the structure of 6-methoxy-1,2-diphenyl-1,2,3,4-tetrahydroisoquinoline with fluorine substitution at para-, meta- and ortho- positions,...