Concomitant polymorphism: Crystallising dichloro-bis(2,4-lutidine)-zinc as both chiral and racemic phases
Artikel i vetenskaplig tidskrift, 2010

The crystallisation of dichloro-bis(2,4-lutidine)-zinc from various solvents (e.g. ethanol, THF and 2,4-lutidine) has been investigated and two phases were isolated. The structures of both phases were determined by single crystal X-ray diffraction and both types of crystals were found to be composed of conformationally chiral molecules. One phase (α-1) is racemic and crystallises in space group P21/c, while the other phase (β-1) crystallises in the enantiomorphous space group P41212 with a low Flack parameter. In a few cases the chiral and racemic phases crystallised concomitantly; this phenomenon is rare and can be useful in the development of tools for the prediction of crystal structures.


Anders Lennartsson

Göteborgs universitet

Susanne Olsson

Göteborgs universitet

Jonas Sundberg

Göteborgs universitet

Mikael Håkansson

Göteborgs universitet

Inorganica Chimica Acta

0020-1693 (ISSN)

Vol. 363 1 257-262





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