A new lyotropic liquid crystalline system: oligo(ethylene oxide) surfactants with [M(H2O)n]Xm transition metal complexes
Date
2001
Authors
Çelik, Ö.
Dag, Ö.
Editor(s)
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Angewandte Chemie - International Edition
Print ISSN
1433-7851
Electronic ISSN
Publisher
Wiley
Volume
40
Issue
20
Pages
3800 - 3803
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Series
Abstract
Coordinated water molecules induce the aggregation and self-assembly of the lyotropic liquid crystalline phase formed from non-ionic surfactants CnH2n+1(CH2CH2O)mOH and transition metal aqua complexes (Ni(H2O)62, Co(H2O)62, Cd(H2O)42, and [Co(H2O)6]Cl2) into hexagonal (see schematic representation) and/or cubic structures. While the NiII and CoII complexes undergo recrystallization and phase separation at high complex concentrations, the ZnII and CdII complexes form cubic phases above metal/surfactant molar ratios of 3.2/1 at room temperature.