<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sokolov, Anatoliy N.</style></author><author><style face="normal" font="default" size="100%">Bucar, Dejan-Kresimir</style></author><author><style face="normal" font="default" size="100%">Baltrusaitis, Jonas</style></author><author><style face="normal" font="default" size="100%">Gu, Sean X.</style></author><author><style face="normal" font="default" size="100%">MacGillivray, Leonard R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Supramolecular Catalysis in the Organic Solid State through Dry Grinding.</style></title><secondary-title><style face="normal" font="default" size="100%">Angewandte Chemie, International Edition</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">crystal structure photoproduct stereoselective photodimer trans bis pyridylethylene</style></keyword><keyword><style  face="normal" font="default" size="100%">solid state photodimerization trans bis pyridylethylene dry grinding</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2010///</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">Wiley-VCH Verlag GmbH &amp; Co. KGaA</style></publisher><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">4273 - 4277</style></pages><isbn><style face="normal" font="default" size="100%">1433-7851</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We report a ditopic supramol. receptor, in the form of the bifunctional hydrogen-bond donor 4,6-dichlororesorcinol (4,6-diCl-res) that operates as a supramol. catalyst in the absence of solvent (Figure 1).  The catalytic reaction is a [2+2] photodimerization of trans-1,2-bis(4-pyridyl)ethylene (4,4'-bpe).  The reaction results in the stereospecific formation of rctt-tetrakis(4-pyridyl)cyclobutane (4,4'-tpcb) in near quant. yield.  We employ mechanochem. energy in the form of dry mortar- and-pestle grinding, in a two-step process that we demonstrate results in reactions between different cryst. phases. [on SciFinder(R)]</style></abstract><issue><style face="normal" font="default" size="100%">25</style></issue><notes><style face="normal" font="default" size="100%">CAPLUS AN 2010:708671(Journal)</style></notes></record></records></xml>