---
_id: '59906'
abstract:
- lang: eng
  text: The cationic molybdenum alkylidyne N-heterocyclic carbene (NHC) complex [Mo(C-p-OMeC6H4)(OCMe(CF3)2)2
    (IMes)][B(ArF4] (IMes = 1,3-dimesitylimidazol-2-ylidene) was selectively immobilized
    inside the pores of ordered mesoporous silica (OMS) with pore diameters of 66,
    56, and 28 Å and used in the ring-expansion metathesis polymerization (REMP) of
    cyclic olefins to yield cyclic polymers. A strong confinement effect was observed
    for cis-cyclooctene (cCOE), 1,5-cyclooctadiene (COD), (+)-2,3-endo,exo-dicarbomethoxynorborn-5-ene
    ((+)-DCMNBE), and 2-methyl-2-phenylcycloprop-1-ene (MPCP), allowing for the synthesis
    of low-molecular-weight cyclic polymers even at a high monomer concentration.
    The exclusive formation of cyclic polymers was demonstrated by matrix-assisted
    laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Confinement
    also influences stereoselectivity, resulting in a pronounced increase in Z-selectivity
    and in an increased cis-syndiospecificity.
article_type: original
author:
- first_name: Patrick
  full_name: Probst, Patrick
  last_name: Probst
- first_name: Moritz
  full_name: Lindemann, Moritz
  last_name: Lindemann
- first_name: Johanna R.
  full_name: Bruckner, Johanna R.
  last_name: Bruckner
- first_name: Boshra
  full_name: Atwi, Boshra
  last_name: Atwi
- first_name: Dongren
  full_name: Wang, Dongren
  last_name: Wang
- first_name: Felix Richard
  full_name: Fischer, Felix Richard
  id: '107380'
  last_name: Fischer
- first_name: Marc
  full_name: Högler, Marc
  last_name: Högler
- first_name: Matthias
  full_name: Bauer, Matthias
  id: '47241'
  last_name: Bauer
  orcid: 0000-0002-9294-6076
- first_name: Niels
  full_name: Hansen, Niels
  last_name: Hansen
- first_name: Michael
  full_name: Dyballa, Michael
  last_name: Dyballa
- first_name: Michael R.
  full_name: Buchmeiser, Michael R.
  last_name: Buchmeiser
citation:
  ama: Probst P, Lindemann M, Bruckner JR, et al. Ring-Expansion Metathesis Polymerization
    under Confinement. <i>Journal of the American Chemical Society</i>. 2025;147(10):8741-8750.
    doi:<a href="https://doi.org/10.1021/jacs.4c18171">10.1021/jacs.4c18171</a>
  apa: Probst, P., Lindemann, M., Bruckner, J. R., Atwi, B., Wang, D., Fischer, F.
    R., Högler, M., Bauer, M., Hansen, N., Dyballa, M., &#38; Buchmeiser, M. R. (2025).
    Ring-Expansion Metathesis Polymerization under Confinement. <i>Journal of the
    American Chemical Society</i>, <i>147</i>(10), 8741–8750. <a href="https://doi.org/10.1021/jacs.4c18171">https://doi.org/10.1021/jacs.4c18171</a>
  bibtex: '@article{Probst_Lindemann_Bruckner_Atwi_Wang_Fischer_Högler_Bauer_Hansen_Dyballa_et
    al._2025, title={Ring-Expansion Metathesis Polymerization under Confinement},
    volume={147}, DOI={<a href="https://doi.org/10.1021/jacs.4c18171">10.1021/jacs.4c18171</a>},
    number={10}, journal={Journal of the American Chemical Society}, publisher={American
    Chemical Society (ACS)}, author={Probst, Patrick and Lindemann, Moritz and Bruckner,
    Johanna R. and Atwi, Boshra and Wang, Dongren and Fischer, Felix Richard and Högler,
    Marc and Bauer, Matthias and Hansen, Niels and Dyballa, Michael and et al.}, year={2025},
    pages={8741–8750} }'
  chicago: 'Probst, Patrick, Moritz Lindemann, Johanna R. Bruckner, Boshra Atwi, Dongren
    Wang, Felix Richard Fischer, Marc Högler, et al. “Ring-Expansion Metathesis Polymerization
    under Confinement.” <i>Journal of the American Chemical Society</i> 147, no. 10
    (2025): 8741–50. <a href="https://doi.org/10.1021/jacs.4c18171">https://doi.org/10.1021/jacs.4c18171</a>.'
  ieee: 'P. Probst <i>et al.</i>, “Ring-Expansion Metathesis Polymerization under
    Confinement,” <i>Journal of the American Chemical Society</i>, vol. 147, no. 10,
    pp. 8741–8750, 2025, doi: <a href="https://doi.org/10.1021/jacs.4c18171">10.1021/jacs.4c18171</a>.'
  mla: Probst, Patrick, et al. “Ring-Expansion Metathesis Polymerization under Confinement.”
    <i>Journal of the American Chemical Society</i>, vol. 147, no. 10, American Chemical
    Society (ACS), 2025, pp. 8741–50, doi:<a href="https://doi.org/10.1021/jacs.4c18171">10.1021/jacs.4c18171</a>.
  short: P. Probst, M. Lindemann, J.R. Bruckner, B. Atwi, D. Wang, F.R. Fischer, M.
    Högler, M. Bauer, N. Hansen, M. Dyballa, M.R. Buchmeiser, Journal of the American
    Chemical Society 147 (2025) 8741–8750.
date_created: 2025-05-15T06:53:39Z
date_updated: 2025-05-15T06:55:29Z
department:
- _id: '306'
doi: 10.1021/jacs.4c18171
intvolume: '       147'
issue: '10'
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/full/10.1021/jacs.4c18171
page: 8741-8750
publication: Journal of the American Chemical Society
publication_identifier:
  issn:
  - 0002-7863
  - 1520-5126
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Ring-Expansion Metathesis Polymerization under Confinement
type: journal_article
user_id: '48467'
volume: 147
year: '2025'
...