@article { ISI:000229464500150, title = {6(2,4-Dichlorophenoxy)dibenzo[d,f][1,3,2]dioxa-phosphepine-6-sulfide}, journal = {Acta Crystallographica Section E-Structure Reports Online}, volume = {61}, number = {6}, year = {2005}, month = {JUN}, pages = {O1646-O1648}, publisher = {BLACKWELL PUBLISHING}, address = {9600 GARSINGTON RD, OXFORD OX4 2DG, OXON, ENGLAND}, abstract = {

In the title compound, C18H11Cl2O3PS, the seven-membered phosphepine ring exhibits a distorted-boat conformation, with the phosphoryl sulfide group axial and the dichlorophenoxy group equatorial. Fusion of the phosphepine ring to the biphenyl system causes strain, as evidenced by both widening and compression of the endocyclic angles in the heterocyclic ring. The P=S bond length is 1.8939 (12) angstrom and the planar dichlorophenyl ring is oriented at an angle of 28.70 (6)degrees to the phosphepine ring.

}, issn = {1600-5368}, doi = {10.1107/S1600536805013991}, author = {Krishnaiah, M. and Babu, V. H. H. Surendra and Krishna, J. R. and Kumar, K. A. and Reddy, C. S. and Puranik, Vedavati G.} } @article { ISI:000228833300134, title = {(E)-1-(2-Hydroxy-3,4-dimethoxyphenyl)-3-(4-hydroxyphenyl)-prop-2-en-1-on e}, journal = {Acta Crystallographica Section E-Structure Reports Online}, volume = {61}, number = {5}, year = {2005}, month = {MAY}, pages = {O1323-O1325}, publisher = {BLACKWELL MUNKSGAARD}, type = {Article}, address = {1 ROSENORNS ALLE, DK-1970 FREDERIKSBERG C, DENMARK}, abstract = {

The title compound, C17H16O5, crystallizes with two independent molecules in the asymmetric unit. These are oriented approximately orthogonal to one another. The keto group adopts an s-cis conformation; the six-membered ring formed by the O-H\•\•\• O hydrogen bond and the adjacent benzene ring are approximately coplanar. In addition to an intramolecular O-H\•\•\• O hydrogen bond, intermolecular O-H\•\•\• O interactions link adjacent molecules into chains.

}, issn = {1600-5368}, doi = {10.1107/S1600536805010731}, author = {Krishna, J. R. and Kumar, N. J. and Krishnaiah, M. and Rao, C. V. and Rao, Y. K. and Puranik, Vedavati G.} } @article { ISI:000248080100348, title = {3-(3-Methylphenoxy)-1,5-dihydro-2,4,3-benzodioxaphosphepin-3-one}, journal = {Acta Crystallographica Section E-Structure Reports Online}, volume = {63}, number = {5}, year = {2007}, month = {MAY}, pages = {O2405-O2406}, publisher = {BLACKWELL PUBLISHING}, type = {Article}, chapter = {Part 5}, address = {9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND}, abstract = {

In the title compound, C15H15O4P, the seven-membered phosphepine ring exhibits a twist-chair conformation, with the phosphoryl O atom in an equatorial and the methylphenoxy group in an axial position. The crystal structure is stabilized by both intra- and intermolecular C-H center dot center dot center dot O hydrogen bonds.

}, issn = {1600-5368}, doi = {10.1107/S1600536807015954}, author = {Krishna, J. Radha and Krishnaiah, M. and Babu, M. F. Stephen and Reddy, C. Suresh and Puranik, Vedavati G.} } @article { ISI:000248080100349, title = {6-Bromo-3-(4-chlorophenyl)-2-(4-methoxyphenyl)-3,4-dihydro-1,3,2-benzoxa zaphosphinine 2-sulfide}, journal = {Acta Crystallographica Section E-Structure Reports Online}, volume = {63}, number = {5}, year = {2007}, month = {MAY}, pages = {O2407-O2409}, publisher = {BLACKWELL PUBLISHING}, type = {Article}, chapter = {Part 5}, address = {9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND}, abstract = {

In the title compound, C20H16BrClNO2PS, the six-membered oxazaphosphinine ring exhibits a boat conformation, with the S atom in an axial position. The methoxyphenyl and chlorobenzene groups are trans to each othe. The structure is stabilized by intermolecular C-H center dot center dot center dot S hydrogen bonds, linking the molecules into chains.

}, issn = {1600-5368}, doi = {10.1107/S160053680701776X}, author = {Krishna, J. Radha and Krishnaiah, M. and Prasad, G. Syam and Reddy, C. Suresh and Puranik, Vedavati G.} } @article { ISI:000269523400273, title = {2-(2,6-Dimethoxyphenyl)-5-hydroxy-7-methoxy-4H-1-benzopyran-4-one}, journal = {Acta Crystallographica Section E-Structure Reports Online}, volume = {65}, number = {9}, year = {2009}, month = {SEP}, pages = {O2262-U2986}, publisher = {WILEY-BLACKWELL}, address = {COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA}, abstract = {

In the title compound, C18H16O6, the dimethoxyphenyl ring is rotated by 61.8 (1)degrees from the plane of the benzopyran system. The molecule is stabilized by an intramolecular O-H center dot center dot center dot O hydrogen bond.

}, issn = {1600-5368}, doi = {10.1107/S1600536809032383}, author = {Kumar, R. Ravi and Krishnaiah, M. and Kumar, N. Jagadesh and Reddy, D. Gunasekhar and Puranik, Vedavati G.} } @article { ISI:000270450400265, title = {Diethyl [(5-chloro-2-hydroxyanilino)(4-chlorophenyl)methyl]phosphonate}, journal = {Acta Crystallographica Section E-Structure Reports Online}, volume = {65}, number = {10}, year = {2009}, month = {OCT}, pages = {O2506+}, publisher = {WILEY-BLACKWELL}, address = {COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA}, abstract = {

In the title compound, C17H20Cl2NO4P, the P atom is bonded in a distorted tetrahedral environment. The dihedral angle between the two benzene rings is 80.5 (1)degrees. In the crystal structure, intermolecular O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds link pairs of molecules into centrosymmetric dimers. These dimers, are in turn, linked by weak intermolecular C-H center dot center dot center dot O hydrogen bonds into one-dimensional chains along [010]. Additional stabilization is provided by very weak C-H center dot center dot center dot Cl interactions.

}, issn = {1600-5368}, doi = {10.1107/S1600536809037039}, author = {Krishnaiah, M. and Babu, V. H. H. Surendra and Prasad, G. Syam and Reddy, C. Suresh and Puranik, Vedavati G.} }