Zobrazeno 1 - 10
of 378
pro vyhledávání: '"K, Sethusankar"'
Autor:
S. Gopinath, P. Narayanan, K. Sethusankar, Jeyachandran Karunakaran, Meganathan Nandakumar, Arasambattu K. Mohanakrishnan
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 2, Pp 177-182 (2017)
In the title 1-oxo-1,2-dihydronaphthalene derivatives, C28H24O6, (I), C34H22O5S, (II), and C27H20O3S2, (III), the cyclohexa-1,3-diene rings of the 1,2-dihydronaphthalene ring systems adopt half-chair, boat and half-chair conformations, respectively.
Externí odkaz:
https://doaj.org/article/989957755fed4064b5a6deadb413b621
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 12, Pp 1739-1743 (2016)
The title compounds, C30H18N2O5S, (I), and C27H18N2O4S2, (II), are carbazole derivatives with a phenylsulfonyl group and a nitrophenyl group attached to the carbazole moiety in identical positions in both molecules. A benzofuran ring system in (I) an
Externí odkaz:
https://doaj.org/article/34df4f58527242498edcd4fc914e21b6
Autor:
Rajeswari Gangadharan, P. Narayanan, K. Sethusankar, Velu Saravanan, Arasambattu K. Mohanakrishnan
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 12, Pp 1744-1750 (2016)
The three title compounds, C26H19NO3S, (1), C27H20N2O8S, (2), and C30H19NO3S, (3), are carbazole derivatives, where (1) and (3) are heterocycle-containing carbazoles with a benzofuran moiety fused to a carbazole unit. In (2), a dimethoxynitrophenyl r
Externí odkaz:
https://doaj.org/article/7b67c36eca7c4020bad51e30a0169232
Autor:
S. Gopinath, K. Sethusankar, Helen Stoeckli-Evans, Muhamad Rafiq, Arasambattu K. Mohanakrishnan
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 9, Pp 1310-1314 (2016)
The title compounds, C23H16S, (I), and C26H16S, (II), are benzothiophene derivatives in which the benzothiophene moiety is fused with a naphthalene ring system in (I), and with an anthracene ring system in (II). In (I), the mean plane of the benzothi
Externí odkaz:
https://doaj.org/article/2c1dfca766304515964a4a61dd9804cd
Autor:
Rajeswari Gangadharan, Mathiyan Muralisankar, Anandaram Sreekanth, Abdullakutty Anees Rahman, K. Sethusankar
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 5, Pp 608-611 (2016)
In the asymmetric unit of the title compound, C16H17N3O2S, there are two independent molecules (A and B), which show an E conformation with respect to the C=N bond. An intramolecular O—H...N hydrogen bond with an S(6) motif stabilizes the molecular
Externí odkaz:
https://doaj.org/article/ccd53510afd64f06ad454a1890dfa862
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 9, Pp 1036-1041 (2015)
The title compounds, C17H13NO2S, (I), C17H13NO3S, (II), and C24H17ClN2O5S·CHCl3, (III), are indole derivatives. Compounds (I) and (II) crystalize with two independent molecules in the asymmetric unit. The indole ring systems in all three structures
Externí odkaz:
https://doaj.org/article/e31ff855b6ff4844977345e499efb5bf
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 8, Pp 926-930 (2015)
The title compounds, C27H20O6, (I) [systematic name: methyl 7-oxo-14-phenyl-1H,7H,14H-pyrano[3,2-c:5,4-c′]dichromene-14a(6bH)-carboxylate], C24H22O5, (II) [systematic name: methyl 1-oxo-6-phenyl-2,3,4,12b-tetrahydro-1H,6H-chromeno[3,4-c]chromene-6a
Externí odkaz:
https://doaj.org/article/c541cecbdaaa4710b03943e5999f4864
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 3, Pp 305-308 (2015)
The title compounds, C13H13N3O2S·0.5H2O, (I), and C17H14ClN3OS, (II), are hydrazinecarbothioamide derivatives. Compound (I) crystallizes with two independent molecules (A and B) and a water molecule of crystallization in the asymmetric unit. The chr
Externí odkaz:
https://doaj.org/article/9679e77d988441ebb70c5cf7bc3aa642
Autor:
S. Gopinath, P. Narayanan, K. Sethusankar, Meganathan Nandakumar, Arasambattu K. Mohanakrishnan
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 2, Pp 213-216 (2015)
The title compounds, C21H16O2S2 (I) and C25H20O2 (II), are products of a tandem `pincer' Diels–Alder reaction consisting of [2 + 2] cycloadditions between benzo[c]furan and cyclopentanone. Each comprises a fused tetracyclic ring system containing t
Externí odkaz:
https://doaj.org/article/0a8338d391684a87a403398eeea224a4
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 9, Pp o1039-o1040 (2014)
In the title compound, C17H20ClN3OS, the mean plane of the central thiourea core makes dihedral angles of 26.56 (9) and 47.62 (12)° with the mean planes of the chromene moiety and the cyclohexyl ring, respectively. The cyclohexyl ring adopts a chair
Externí odkaz:
https://doaj.org/article/c0314925803940899cb829fa3e00a9b9