Nature of weak inter-and intramolecular interactions in crystals 7. Stability of homochiral supramolecular organization of dications in crystals of 1,3-dialkyl-4,5-bis(3-guanidinioamino)imidazolidin-2-one salts

Autor:	M. Yu. Antipin, Konstantin A. Lyssenko, Yu. V. Nelyubina, Angelina N. Kravchenko, A. S. Sigachev
Rok vydání:	2006
Předmět:	Chemistry Resolution (electron density) Supramolecular chemistry General Chemistry Crystal structure Electronic structure Quantum chemistry Chloride law.invention Crystallography law Intramolecular force medicine Crystallization medicine.drug
Zdroj:	Russian Chemical Bulletin. 55:399-407
ISSN:	1573-9171 1066-5285
DOI:	10.1007/s11172-006-0270-7
Popis:	The geometries and peculiarities of the electronic structure of chiral 1,3-dialkyl-4,5-bis(3-guanidinioamino)imidazolidin-2-one dications (C 2 symmetry) and their associates in salts containing chloride and nitrate anions were studied by X-ray diffraction analysis and quantum chemistry methods. Homochiral H-bonded cation chains are stable supramolecular fragments; however, their presence in the crystal structures does not provide spontaneous resolution of racemates upon crystallization.
Databáze:	OpenAIRE
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