<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bragg, R. A.</style></author><author><style face="normal" font="default" size="100%">Clayden, Jonathan</style></author><author><style face="normal" font="default" size="100%">Morris, Gareth A.</style></author><author><style face="normal" font="default" size="100%">Pink, J. H.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Stereodynamics of bond rotation in tertiary aromatic amides</style></title><secondary-title><style face="normal" font="default" size="100%">Chemistry-a European Journal</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2002</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%"><Go to ISI>://WOS:000174555400003</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">6</style></number><volume><style face="normal" font="default" size="100%">8</style></volume><pages><style face="normal" font="default" size="100%">1279-1289</style></pages><isbn><style face="normal" font="default" size="100%">0947-6539</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The degree to which the rotations about the C-N and Ar-CO bonds of aromatic amides occur in a concerted manner was investigated by a variety of NMR and kinetic techniques. Otherwise complex kinetic analyses were simplified by exploiting symmetry and asymmetry in the N-substituents of amides. In 2-unsubstituted 1-naphthamides bearing branched N-substituents, most conformational changes about the amide group were by correlated rotation, though uncorrelated Ar-CO rotation also occurred to some extent. In 2-substituted 1-naphthamides, correlated rotation accounted for all of the Ar-CO rotations, though a significant amount of uncorrelated C-N rotation also occurred. Naphthamides bearing branched N-substituents thus turn out to be efficient molecular gears.</style></abstract><accession-num><style face="normal" font="default" size="100%">WOS:000174555400003</style></accession-num><notes><style face="normal" font="default" size="100%">Times Cited: 35</style></notes></record></records></xml>