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

被引：9

作者：

Nelyubina, Yu. V.

Lyssenko, K. A.

Sigachev, A. S.

Antipin, M. Yu.

Kravchenko, A. N.

机构：

[1] Russian Acad Sci, AN Nesmeyanov Organoelement Cpds Inst, Moscow 119991, Russia

[2] Russian Acad Sci, Higher Chem Coll, Moscow 125820, Russia

[3] Russian Acad Sci, ND Zelinskii Organ Chem Inst, Moscow 119991, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2006年 / 55卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

1,3-dialkyl-4,5-bis(3-guanidinioamino)imidazolidin-2-ones; X-ray diffraction studies; quantum chemical calculations; homochiral associates; cation-cation associates; spontaneous resolution;

D O I：

10.1007/s11172-006-0270-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The geometries and peculiarities of the electronic structure of chiral 1,3-dialkyl-4,5bis(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.

引用

页码：399 / 407

页数：9