Crystallographic snapshots of the interplay between reactive guest and host molecules in a porous coordination polymer: Stereochemical coupling and feedback mechanism of three photoactive centers triggered by UV-induced isomerization, dimerization, and polymerization reactions

Shi Yao Yang, Xi Ling Deng, Rui Fang Jin, Pance Naumov, Manas K. Panda, Rong Bin Huang, Lan Sun Zheng, Boon K. Teo

Research output: Contribution to journalArticle

Abstract

We carried out photopolymerization by [2 + 2] dimerization of a photoreactive guest molecule in the channels of a photoreactive porous coordination polymer. The photoreactions of the guest and two host ligands were monitored by single-crystal X-ray crystallography, providing snapshots of the interplay between the reactive centers. By correlating the structures of these three photocenters, a strong synergism was discovered among three reaction (quasi)equilibria and three types of photochemical reactions (isomerization, dimerization, and polymerization). This result indicates a strong coupling and feedback mechanism among the photocenters moderated by the coordination backbone.

Original languageEnglish (US)
Pages (from-to)558-561
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number2
DOIs
StatePublished - Jan 15 2014

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Dimerization
Isomerization
Polymerization
Polymers
Feedback
Molecules
Photopolymerization
Photochemical reactions
X ray crystallography
X Ray Crystallography
Ligands
Single crystals

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

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abstract = "We carried out photopolymerization by [2 + 2] dimerization of a photoreactive guest molecule in the channels of a photoreactive porous coordination polymer. The photoreactions of the guest and two host ligands were monitored by single-crystal X-ray crystallography, providing snapshots of the interplay between the reactive centers. By correlating the structures of these three photocenters, a strong synergism was discovered among three reaction (quasi)equilibria and three types of photochemical reactions (isomerization, dimerization, and polymerization). This result indicates a strong coupling and feedback mechanism among the photocenters moderated by the coordination backbone.",
author = "Yang, {Shi Yao} and Deng, {Xi Ling} and Jin, {Rui Fang} and Pance Naumov and Panda, {Manas K.} and Huang, {Rong Bin} and Zheng, {Lan Sun} and Teo, {Boon K.}",
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TY - JOUR

T1 - Crystallographic snapshots of the interplay between reactive guest and host molecules in a porous coordination polymer

T2 - Stereochemical coupling and feedback mechanism of three photoactive centers triggered by UV-induced isomerization, dimerization, and polymerization reactions

AU - Yang, Shi Yao

AU - Deng, Xi Ling

AU - Jin, Rui Fang

AU - Naumov, Pance

AU - Panda, Manas K.

AU - Huang, Rong Bin

AU - Zheng, Lan Sun

AU - Teo, Boon K.

PY - 2014/1/15

Y1 - 2014/1/15

N2 - We carried out photopolymerization by [2 + 2] dimerization of a photoreactive guest molecule in the channels of a photoreactive porous coordination polymer. The photoreactions of the guest and two host ligands were monitored by single-crystal X-ray crystallography, providing snapshots of the interplay between the reactive centers. By correlating the structures of these three photocenters, a strong synergism was discovered among three reaction (quasi)equilibria and three types of photochemical reactions (isomerization, dimerization, and polymerization). This result indicates a strong coupling and feedback mechanism among the photocenters moderated by the coordination backbone.

AB - We carried out photopolymerization by [2 + 2] dimerization of a photoreactive guest molecule in the channels of a photoreactive porous coordination polymer. The photoreactions of the guest and two host ligands were monitored by single-crystal X-ray crystallography, providing snapshots of the interplay between the reactive centers. By correlating the structures of these three photocenters, a strong synergism was discovered among three reaction (quasi)equilibria and three types of photochemical reactions (isomerization, dimerization, and polymerization). This result indicates a strong coupling and feedback mechanism among the photocenters moderated by the coordination backbone.

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