Conglomerate-to-True-Racemate Reversible Solid-State Transition in Crystals of an Organic Disulfide-Based Iodoplumbate

Conglomerate-to-True-Racemate Reversible Solid-State Transition in Crystals of an Organic Disulfide-Based Iodoplumbate

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...

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Veröffentlicht in:Angewandte Chemie International Edition 2006-03, Vol.45 (13), p.2100-2103
Hauptverfasser: Mercier, Nicolas, Barres, Anne-Lise, Giffard, Michel, Rau, Ileana, Kajzar, François, Sahraoui, Bouchta
Format: Artikel
Sprache:eng
Schlagworte:
chirality
conformers
disulfides
iodoplumbates
second harmonic generation
solid-state structures
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Beschreibung
Zusammenfassung: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.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200503423