THE PHENOMENON OF CONGLOMERATE CRYSTALLIZATION .31. THE CRYSTALLIZATION BEHAVIOR OF [CIS-CO(EN)2(NO2)BR-2 AND OF [CIS-ALPHA-CO(TRIETHYLENETETRAMINE)(NO2)2](NO3).1 3H2O - COUNTERION EFFECTS ON CRYSTALLIZATION PATHWAY OF RACEMATE SOLUTIONS/

Authors
BERNAL I CETRULLO J MYRCZEK J
Citation
I. Bernal et al., THE PHENOMENON OF CONGLOMERATE CRYSTALLIZATION .31. THE CRYSTALLIZATION BEHAVIOR OF [CIS-CO(EN)2(NO2)BR-2 AND OF [CIS-ALPHA-CO(TRIETHYLENETETRAMINE)(NO2)2](NO3).1 3H2O - COUNTERION EFFECTS ON CRYSTALLIZATION PATHWAY OF RACEMATE SOLUTIONS/, Materials chemistry and physics, 35(3-4), 1993, pp. 290-300
Citations number
33
Categorie Soggetti
Material Science
Journal title
Materials chemistry and physics → ACNP
ISSN journal
02540584
Volume
35
Issue
3-4
Year of publication
1993
Pages
290 - 300
Database
ISI
SICI code
0254-0584(1993)35:3-4<290:TPOCC.>2.0.ZU;2-2
Abstract
In accordance with predictions made in previous studies of conglomerat e crystallization of coordination compounds, racemic solutions of [cis -Co(en)2(NO2)2]Br crystallize as a conglomerate (homochiral crystals, space group P2(1)), whereas racemic solutions of [cis-a-Co(triethylene tetramine)(NO2)2](NO3). 1/3 H2O crystallize as a racemate (heterochira l crystals, space group P2(1)/c). Intra- and intermolecular hydrogen-b onded interactions are shown to control the crystallization pathway th ese substances select, and the counter anion used is shown to play a r ole in such selection.