Solvent-Dependent Self-Assembly of an Amphiphilic Copper(II) Complex with Bulky Head Groups

Publication type:
Journal article
Metadata:
Autoren
  • Constantin Schreck
  • Johannes Weihermueller
  • Peter Thoma
  • Sabine Rosenfeldt
  • Markus Drechsler
  • Christoph Foerster
  • Katja Heinze
  • Gerald Hoerner
  • Birgit Weber
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000842837100001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1002/ejic.202200341
eISSN
1099-0682
Externe Identifier
  • Clarivate Analytics Document Solution ID: 4P4KF
ISSN
1434-1948
Ausgabe der Veröffentlichung
27
Zeitschrift
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Schlüsselwörter
  • Aggregation
  • Amphiphilic complexes
  • Copper
  • Magnetism
  • Self-assembly
Artikelnummer
ARTN e202200341
Datum der Veröffentlichung
2022
Status
Published
Titel
Solvent-Dependent Self-Assembly of an Amphiphilic Copper(II) Complex with Bulky Head Groups
Sub types
  • Article
Ausgabe der Zeitschrift
2022

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:title>Abstract</jats:title><jats:p>The aggregation behavior of an amphiphilic copper(II) complex was studied in solution by means of UV‐Vis and EPR spectroscopy. While dilute solutions in polar media do not give indication of relevant intermolecular interactions, concentrated solutions in nonpolar media clearly do <jats:italic>not</jats:italic> reflect the molecular properties of <jats:bold>[CuL]</jats:bold> (H<jats:sub>2</jats:sub><jats:bold>L</jats:bold>: N<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub> ligand of the Jäger‐type with bulky head‐group and long alkoxy tailing). Massive broadening of EPR‐lines is prevalent in non‐polar media, such as <jats:italic>n</jats:italic>‐heptane and <jats:italic>iso</jats:italic>‐octane. In combination with DFT‐modelling, the solvent‐dependence of the EPR response (line widths and Cu‐hyperfine coupling) could be associated with the formation of oligomers with weak anti‐ferromagnetically coupled copper centers. Weak anti‐ferromagnetic coupling becomes evident also by SQUID magnetometry at <jats:italic>T</jats:italic>&lt;10 K of solid samples of <jats:bold>[CuL]</jats:bold>. The tendency towards supramolecular aggregation is unequivocally shown by electron microscopy of dried (TEM) and frozen samples (cryo‐TEM). While the former approach gives evidence of the formation of extended 2D sheet‐like structures with extensions on the micrometer scale, the latter technique identifies the formation of 1D thread‐like structures with lengths of several hundred nanometers.</jats:p>
Autoren
  • Constantin Schreck
  • Johannes Weihermüller
  • Peter Thoma
  • Sabine Rosenfeldt
  • Markus Drechsler
  • Christoph Förster
  • Katja Heinze
  • Gerald Hörner
  • Birgit Weber
DOI
10.1002/ejic.202200341
eISSN
1099-0682
ISSN
1434-1948
Ausgabe der Veröffentlichung
27
Zeitschrift
European Journal of Inorganic Chemistry
Sprache
en
Online publication date
2022
Datum der Veröffentlichung
2022
Status
Published
Herausgeber
Wiley
Herausgeber URL
http://dx.doi.org/10.1002/ejic.202200341
Datum der Datenerfassung
2023
Titel
Solvent‐Dependent Self‐Assembly of an Amphiphilic Copper(II) Complex with Bulky Head Groups
Ausgabe der Zeitschrift
2022

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