Premium
Conglomerate‐to‐True‐Racemate Reversible Solid‐State Transition in Crystals of an Organic Disulfide‐Based Iodoplumbate
Author(s) -
Mercier Nicolas,
Barres AnneLise,
Giffard Michel,
Rau Ileana,
Kajzar François,
Sahraoui Bouchta
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200503423
Subject(s) - disulfide bond , crystallography , phase transition , molecule , solid state , transition (genetics) , chemistry , crystal (programming language) , stereochemistry , materials science , organic chemistry , thermodynamics , physics , biochemistry , gene , computer science , programming language
Switch over : All the disulfide moieties in the cations of an iodoplumbate display the same chiral conformation in a single crystal; however, during a phase transition (75 °C) half of these molecules undergo a conformational change, from the left‐ to the right‐handed helical form, and a true racemate is formed. This transition is reversible, and thus this compound can act as a second harmonic generation switch.