Changing gears to neutral in a polymorph of one-dimensional arrays of cogwheel-like pairs of molecular rotors

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TitreChanging gears to neutral in a polymorph of one-dimensional arrays of cogwheel-like pairs of molecular rotors
Type de publicationArticle de revue
AuteurBastien, Guillaume , Lemouchi, Cyprien, Allain, Magali, Wzietek, Pawel, Rodríguez-Fortea, Antonio, Canadell, Enric, Iliopoulos, Konstantinos, Gindre, Denis, Chrysos, Michel , Batail, Patrick
EditeurRoyal Society of Chemistry
TypeArticle scientifique dans une revue à comité de lecture
Année2014
LangueAnglais
DateJan-01-2014
Numéro7
Pagination 1241-1244
Volume16
Titre de la revueCrystEngComm
Résumé en anglais

We report on a polymorph (2) of an amphidynamic crystal of molecular rods with two helical 1,4-bis(ethynyl)bicyclo[2.2.2]octane rotators where half of the rod-like molecules appear to be shifted with respect to their closest neighbours. This translation takes cogwheel-like pairs of rotators apart in the lattice in such a way that their motion becomes uncorrelated. This property is to be contrasted with the highly correlated motion found to govern the rotators in a recently-published polymorph 1 of the same material. As with polymorph 1, this motion is shown to take place independently of mutations in the handedness of the rotators and of the ‘mutamer’-induced second harmonic generation.

URL de la noticehttp://okina.univ-angers.fr/publications/ua8899
DOI10.1039/c3ce42054j
Lien vers le document

http://dx.doi.org/10.1039/c3ce42054j

Titre abrégéCrystEngComm