Enthalpy/entropy compensation in the melting of thermotropic nitrogen-containing chelating ligands and their lanthanide complexes: successes and failures

Escande, Aude; Guenee, Laure; Terazzi, Emmanuel; Jensen, Thomas Binderup; Nozary, Homayoun; Piguet, Claude

doi:10.1002/ejic.200901190

Advanced search

Browse by...

Deposit

Highlights

More informations

Title		Enthalpy/entropy compensation in the melting of thermotropic nitrogen-containing chelating ligands and their lanthanide complexes: successes and failures
Authors		Escande, Aude Guenee, Laure Terazzi, Emmanuel Jensen, Thomas Binderup Nozary, Homayoun Piguet, Claude
Published in		European journal of inorganic chemistry. 2010, vol. 18, p. 2746-2759
Abstract		In this short overview dedicated to the thermodynamics of liquid crystalline chelating nitrogen-containing ligands and their lanthanide complexes (i.e., lanthanidomesogens), we first go through the initial successes obtained with the introduction of the concept of enthalpy/entropy compensation for rationalizing and programming melting and clearing temperatures in thermotropic mesophases. In the second part,the failures encountered during our attempts for switching from a qualitative toward a quantitative interpretation of the melting processes in polycatenar lanthanidomesogens are discussed, together with the delicate correlations established between the thermodynamic parameters of intermolecular cohesion measured in noncoordinating solvents and those operating in pure mesophases.
Keywords		Thermodynamics — Lanthanides — Liquid crystals — Thermotropic behavior — Polycatenar compounds
Identifiers		DOI: 10.1002/ejic.200901190
Full text		Article (Published version) (1.4 MB) - Limited access to UNIGE
Structures		Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée
Citation (ISO format)		ESCANDE, Aude et al. Enthalpy/entropy compensation in the melting of thermotropic nitrogen-containing chelating ligands and their lanthanide complexes: successes and failures. In: European journal of inorganic chemistry, 2010, vol. 18, p. 2746-2759. doi: 10.1002/ejic.200901190 https://archive-ouverte.unige.ch/unige:8406