DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/12344

Title: Conformational Studies of Substituted Chromans: Crystal Structures of 2,2 '-(1E,1 ' E)-(2,3-Dimethylchroman-2,4-diyl)bis(Azan-1-yl-1-ylidene)bis(Methan-1-yl-1-ylidene)Diphenol (I) and 2,2 '-(1E,1 ' E)-(2-Ethyl-3-Methylchroman-2,4-diyl)bis(Azan-1-yl-1-ylidene)bis(Methan-1-yl-1-ylidene)Diphenol (II)
Authors: MAGUE, JT
THEIVARASU, C
SURESH, D
BALAKRISHNA, MS
Keywords: derivatives
stereochemistry
3-nitro-2-trihalomethyl-2h-chromenes
nucleophiles
series
rings
Issue Date: 2010
Publisher: SPRINGER/PLENUM PUBLISHERS
Citation: JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, 40(12), 1129-1136
Abstract: The title compounds C(25)H(24)N(2)O(3) (I) and C(26)H(26)N(2)O(3) (II) crystallize in the triclinic space group P-1 with cell parameters a = 8.981(1), b = 9.933(1), c = 12.369(2) , alpha = 78.537(2), beta = 84.515(2), gamma = 73.561(2)degrees Z = 2 (I) and a = 11.4630(9), b = 12.955(1), c = 16.154(1) , alpha = 70.425(1), beta = 87.403(1), gamma = 71.850(1)A degrees, Z = 4 (II). In both compounds the phenolic groups in the Schiff base substituents form intramolecular hydrogen bonds with the imine nitrogen atoms thereby rendering these substituents nearly planar. A detailed analysis of the amount by which the heterocyclic ring deviates from planarity (extent of puckering) in these and a series of related molecules shows that the extent of the deviation is largely unaffected by the number, size and placement of substituents on this ring.
URI: http://dx.doi.org/10.1007/s10870-010-9808-5
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12344
http://hdl.handle.net/10054/12344
ISSN: 1074-1542
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback