Premium
A Classical Example of a Disappearing Polymorph and the Shortest Intermolecular H⋅⋅⋅H Separation Ever Found in an Organic Crystal Structure
Author(s) -
Bombicz Petra,
Czugler Mátyás,
Tellgren Roland,
Kálmán Alajos
Publication year - 2003
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.200219504
Subject(s) - intermolecular force , crystallography , crystal (programming language) , chemistry , neutron diffraction , diffraction , crystal structure , molecule , physics , organic chemistry , computer science , quantum mechanics , programming language
Missing in action : Neutron and X‐ray diffraction studies at low temperatures reveal the delicate balances of attractive and repulsive intermolecular interactions in the dimorphs of 1,2,3,5‐tetra‐ O ‐acetyl‐β‐ D ‐ribofuranose (the less stable polymorph is shown, O red, H blue, C gray). Very short intermolecular H⋅⋅⋅H contacts which are only present in the less stable crystal form are responsible for the disappearance of this polymorph.