Polymorphs from supramolecular gels: four crystal forms of the same silver(I) supergelator crystallized directly from its gels

Chem Commun (Camb). 2011 May 14;47(18):5154-6. doi: 10.1039/c1cc10305a. Epub 2011 Mar 24.

Abstract

A new silver(I) complex with 1-phenyl-3-(quinolin-5-yl)urea has been prepared, acting as a supramolecular supergelator in the presence of polar solvents. In open vials temperature dependent, reversible gel-to-xerogel transition is observed, while in sealed vials direct crystallization of four polymorphs of the same gelling compound is achieved, depending on the gelling solvent.