Limits...
Crystal structures of three indole derivatives: 3-ethnyl-2-methyl-1-phenyl-sulfonyl-1H-indole, 4-phenyl-sulfonyl-3H,4H-cyclo-penta-[b]indol-1(2H)-one and 1-{2-[(E)-2-(5-chloro-2-nitro-phen-yl)ethen-yl]-1-phenyl-sulfonyl-1H-indol-3-yl}ethan-1-one chloro-form monosolvate.

Gopinath S, Sethusankar K, Ramalingam BM, Mohanakrishnan AK - Acta Crystallogr E Crystallogr Commun (2015)

Bottom Line: Compounds (I) and (II) crystalize with two independent mol-ecules in the asymmetric unit.The indole ring systems in all three structures deviate only slightly from planarity, with dihedral angles between the planes of the pyrrole and benzene rings spanning the tight range 0.20 (9)-1.65 (9)°.These indole ring systems, in turn, are almost orthogonal to the phenyl-sulfonyl rings [range of dihedral angles between mean planes = 77.21 (8)-89.26 (8)°].

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India.

ABSTRACT
The title compounds, C17H13NO2S, (I), C17H13NO3S, (II), and C24H17ClN2O5S·CHCl3, (III), are indole derivatives. Compounds (I) and (II) crystalize with two independent mol-ecules in the asymmetric unit. The indole ring systems in all three structures deviate only slightly from planarity, with dihedral angles between the planes of the pyrrole and benzene rings spanning the tight range 0.20 (9)-1.65 (9)°. These indole ring systems, in turn, are almost orthogonal to the phenyl-sulfonyl rings [range of dihedral angles between mean planes = 77.21 (8)-89.26 (8)°]. In the three compounds, the mol-ecular structure is stabilized by intra-molecular C-H⋯O hydrogen bonds, generating S(6) ring motifs with the sulfone O atom. In compounds (I) and (II), the two independent mol-ecules are linked by C-H⋯O hydrogen bonds and C-H⋯π inter-actions, while in compound (III), the mol-ecules are linked by C-H⋯O hydrogen bonds, generating R 2 (2)(22) inversion dimers.

No MeSH data available.


Related in: MedlinePlus

The mol­ecular structure of the compound (I), showing the atom-numbering scheme. The intra­molecular C2A—H2A⋯O2A and C2B—H2B⋯O2B inter­actions (mol­ecules A and B), which generate two S(6) ring motifs, are shown as dashed lines. Displacement ellipsoids are drawn at the 30% probability level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4555396&req=5

fig1: The mol­ecular structure of the compound (I), showing the atom-numbering scheme. The intra­molecular C2A—H2A⋯O2A and C2B—H2B⋯O2B inter­actions (mol­ecules A and B), which generate two S(6) ring motifs, are shown as dashed lines. Displacement ellipsoids are drawn at the 30% probability level.

Mentions: The mol­ecular structures of title compounds (I), (II) and (III) are shown in Figs. 1 ▸, 2 ▸ and 3 ▸, respectively. Compounds (I) and (II) comprise two crystallographically independent mol­ecules (A and B) in the asymmetric unit. The corresponding bond lengths and bond angles of mol­ecules A and B [in compounds (I) and (II)] agree well with each other, as illustrated in Figs. 4 ▸ and 5 ▸. The indole ring systems depart slightly from planarity, the dihedral angles formed between the pyrrole rings and benzene rings being 1.65 (9) and 0.97 (10) [mol­ecules A and B of compound (I)], 0.20 (9) and 0.86 (9) [mol­ecules A and B of compound (II)], and 1.34 (14)° [compound (III)].


Crystal structures of three indole derivatives: 3-ethnyl-2-methyl-1-phenyl-sulfonyl-1H-indole, 4-phenyl-sulfonyl-3H,4H-cyclo-penta-[b]indol-1(2H)-one and 1-{2-[(E)-2-(5-chloro-2-nitro-phen-yl)ethen-yl]-1-phenyl-sulfonyl-1H-indol-3-yl}ethan-1-one chloro-form monosolvate.

Gopinath S, Sethusankar K, Ramalingam BM, Mohanakrishnan AK - Acta Crystallogr E Crystallogr Commun (2015)

The mol­ecular structure of the compound (I), showing the atom-numbering scheme. The intra­molecular C2A—H2A⋯O2A and C2B—H2B⋯O2B inter­actions (mol­ecules A and B), which generate two S(6) ring motifs, are shown as dashed lines. Displacement ellipsoids are drawn at the 30% probability level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555396&req=5

fig1: The mol­ecular structure of the compound (I), showing the atom-numbering scheme. The intra­molecular C2A—H2A⋯O2A and C2B—H2B⋯O2B inter­actions (mol­ecules A and B), which generate two S(6) ring motifs, are shown as dashed lines. Displacement ellipsoids are drawn at the 30% probability level.
Mentions: The mol­ecular structures of title compounds (I), (II) and (III) are shown in Figs. 1 ▸, 2 ▸ and 3 ▸, respectively. Compounds (I) and (II) comprise two crystallographically independent mol­ecules (A and B) in the asymmetric unit. The corresponding bond lengths and bond angles of mol­ecules A and B [in compounds (I) and (II)] agree well with each other, as illustrated in Figs. 4 ▸ and 5 ▸. The indole ring systems depart slightly from planarity, the dihedral angles formed between the pyrrole rings and benzene rings being 1.65 (9) and 0.97 (10) [mol­ecules A and B of compound (I)], 0.20 (9) and 0.86 (9) [mol­ecules A and B of compound (II)], and 1.34 (14)° [compound (III)].

Bottom Line: Compounds (I) and (II) crystalize with two independent mol-ecules in the asymmetric unit.The indole ring systems in all three structures deviate only slightly from planarity, with dihedral angles between the planes of the pyrrole and benzene rings spanning the tight range 0.20 (9)-1.65 (9)°.These indole ring systems, in turn, are almost orthogonal to the phenyl-sulfonyl rings [range of dihedral angles between mean planes = 77.21 (8)-89.26 (8)°].

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India.

ABSTRACT
The title compounds, C17H13NO2S, (I), C17H13NO3S, (II), and C24H17ClN2O5S·CHCl3, (III), are indole derivatives. Compounds (I) and (II) crystalize with two independent mol-ecules in the asymmetric unit. The indole ring systems in all three structures deviate only slightly from planarity, with dihedral angles between the planes of the pyrrole and benzene rings spanning the tight range 0.20 (9)-1.65 (9)°. These indole ring systems, in turn, are almost orthogonal to the phenyl-sulfonyl rings [range of dihedral angles between mean planes = 77.21 (8)-89.26 (8)°]. In the three compounds, the mol-ecular structure is stabilized by intra-molecular C-H⋯O hydrogen bonds, generating S(6) ring motifs with the sulfone O atom. In compounds (I) and (II), the two independent mol-ecules are linked by C-H⋯O hydrogen bonds and C-H⋯π inter-actions, while in compound (III), the mol-ecules are linked by C-H⋯O hydrogen bonds, generating R 2 (2)(22) inversion dimers.

No MeSH data available.


Related in: MedlinePlus