en
Scientific article
English

A Simple Thermodynamic Model for Quantitatively Addressing Cooperativity in Multicomponent Self-Assembly Processes - Part 2: Extension to Multimetallic Helicates Possessing Different Binding Sites

Published inChemistry - A European Journal, vol. 11, no. 18, p. 5227-5237
Publication date2005
Abstract

The extended site‐binding model, which explicitly separates intramolecular interactions (i.e., intermetallic and interligand) from the successive binding of metal ions to polytopic receptors, is used for unravelling the self‐assembly of trimetallic double‐stranded CuI and triple‐stranded EuIII helicates. A thorough analysis of the available stability constants systematically shows that negatively cooperative processes operate, in strong contrast with previous reports invoking either statistical behaviours or positive cooperativity. Our results also highlight the need for combining successive generations of complexes with common binding units, but with increasing metallic nuclearities, for rationalizing and programming multicomponent supramolecular assemblies.

Keywords
  • Cooperativity
  • Helicate structures
  • Lanthanides
  • Thermodynamics
Citation (ISO format)
HAMACEK, Joséf, BORKOVEC, Michal, PIGUET, Claude. A Simple Thermodynamic Model for Quantitatively Addressing Cooperativity in Multicomponent Self-Assembly Processes - Part 2: Extension to Multimetallic Helicates Possessing Different Binding Sites. In: Chemistry - A European Journal, 2005, vol. 11, n° 18, p. 5227–5237. doi: 10.1002/chem.200500289
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal0947-6539
184views
0downloads

Technical informations

Creation12/02/2020 10:02:00 AM
First validation12/02/2020 10:02:00 AM
Update time03/15/2023 11:38:48 PM
Status update03/15/2023 11:38:48 PM
Last indexation01/17/2024 11:50:41 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack