---
_id: '13186'
abstract:
- lang: eng
  text: Ligands DMEG6etqu, TMG6etqu, DMEG6buqu, and TMG6buqu were developed on the
    basis of guanidine quinoline (GUAqu) ligands 1,3-dimethyl-N-(quinolin-8-yl)imidazolidin-2-imine
    (DMEGqu) and 1,1,3,3-tetramethyl-2-(quinolin-8-yl)guanidine (TMGqu). These ligands
    feature an alkyl substituent at the C6 of the quinoline backbone. The synthetic
    strategy developed here enables inexpensive syntheses of any kind of C6-substituted
    GUAqu ligands. On one hand, the alkylation increases the solubility of corresponding
    copper complexes in apolar atom transfer radical polymerization (ATRP) monomers
    like styrene. On the other hand, it has a significant electronic influence and
    thus an effect on the donor properties of the new ligands. Seven CuI and CuII
    complexes of DMEG6etqu and TMG6etqu have been crystallized and were studied with
    regard to their structural and electrochemical properties. CuI and CuII complexes
    of DMEG6buqu and TMG6buqu turned out to be perfectly soluble in pure styrene even
    at room temperature, which makes them excellent catalysts in the ATRP of apolar
    monomers. The key characteristics of the ATRP equilibrium, KATRP and kact, were
    determined for the new complexes. In addition, we used our recently developed
    DFT methodology, NBO analysis, and isodesmic reactions to predict the influence
    of the introduced alkyl substituents. It turned out that high conformational freedom
    in the complex structures leads to a significant uncertainty in prediction of
    the thermodynamic properties.
author:
- first_name: Thomas
  full_name: Rösener, Thomas
  last_name: Rösener
- first_name: Alexander
  full_name: Hoffmann, Alexander
  last_name: Hoffmann
- first_name: Sonja
  full_name: Herres-Pawlis, Sonja
  last_name: Herres-Pawlis
citation:
  ama: 'Rösener T, Hoffmann A, Herres-Pawlis S. Next Generation of Guanidine Quinoline
    Copper Complexes for Highly Controlled ATRP: Influence of Backbone Substitution
    on Redox Chemistry and Solubility. <i>European Journal of Inorganic Chemistry</i>.
    2018;2018(27):3164-3175. doi:<a href="https://doi.org/10.1002/ejic.201800511">10.1002/ejic.201800511</a>'
  apa: 'Rösener, T., Hoffmann, A., &#38; Herres-Pawlis, S. (2018). Next Generation
    of Guanidine Quinoline Copper Complexes for Highly Controlled ATRP: Influence
    of Backbone Substitution on Redox Chemistry and Solubility. <i>European Journal
    of Inorganic Chemistry</i>, <i>2018</i>(27), 3164–3175. <a href="https://doi.org/10.1002/ejic.201800511">https://doi.org/10.1002/ejic.201800511</a>'
  bibtex: '@article{Rösener_Hoffmann_Herres-Pawlis_2018, title={Next Generation of
    Guanidine Quinoline Copper Complexes for Highly Controlled ATRP: Influence of
    Backbone Substitution on Redox Chemistry and Solubility}, volume={2018}, DOI={<a
    href="https://doi.org/10.1002/ejic.201800511">10.1002/ejic.201800511</a>}, number={27},
    journal={European Journal of Inorganic Chemistry}, author={Rösener, Thomas and
    Hoffmann, Alexander and Herres-Pawlis, Sonja}, year={2018}, pages={3164–3175}
    }'
  chicago: 'Rösener, Thomas, Alexander Hoffmann, and Sonja Herres-Pawlis. “Next Generation
    of Guanidine Quinoline Copper Complexes for Highly Controlled ATRP: Influence
    of Backbone Substitution on Redox Chemistry and Solubility.” <i>European Journal
    of Inorganic Chemistry</i> 2018, no. 27 (2018): 3164–75. <a href="https://doi.org/10.1002/ejic.201800511">https://doi.org/10.1002/ejic.201800511</a>.'
  ieee: 'T. Rösener, A. Hoffmann, and S. Herres-Pawlis, “Next Generation of Guanidine
    Quinoline Copper Complexes for Highly Controlled ATRP: Influence of Backbone Substitution
    on Redox Chemistry and Solubility,” <i>European Journal of Inorganic Chemistry</i>,
    vol. 2018, no. 27, pp. 3164–3175, 2018.'
  mla: 'Rösener, Thomas, et al. “Next Generation of Guanidine Quinoline Copper Complexes
    for Highly Controlled ATRP: Influence of Backbone Substitution on Redox Chemistry
    and Solubility.” <i>European Journal of Inorganic Chemistry</i>, vol. 2018, no.
    27, 2018, pp. 3164–75, doi:<a href="https://doi.org/10.1002/ejic.201800511">10.1002/ejic.201800511</a>.'
  short: T. Rösener, A. Hoffmann, S. Herres-Pawlis, European Journal of Inorganic
    Chemistry 2018 (2018) 3164–3175.
date_created: 2019-09-11T11:00:06Z
date_updated: 2022-01-06T06:51:30Z
doi: 10.1002/ejic.201800511
intvolume: '      2018'
issue: '27'
keyword:
- Copper
- Polymerization
- Redox chemistry
- Structure elucidation
- Ligand effects
language:
- iso: eng
page: 3164-3175
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: European Journal of Inorganic Chemistry
status: public
title: 'Next Generation of Guanidine Quinoline Copper Complexes for Highly Controlled
  ATRP: Influence of Backbone Substitution on Redox Chemistry and Solubility'
type: journal_article
user_id: '40778'
volume: 2018
year: '2018'
...