BROWSE

Related Researcher

Author's Photo

Bielawski, Christopher W.
Synthetic Materials & Macromolecules
Research Interests
  • Synthetic chemistry, materials science, polymer chemistry, catalysis, carbon-based materials

ITEM VIEW & DOWNLOAD

An Isolable, Photoswitchable N-Heterocyclic Carbene: On-Demand Reversible Ammonia Activation

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
An Isolable, Photoswitchable N-Heterocyclic Carbene: On-Demand Reversible Ammonia Activation
Author
Teator, Aaron J.Tian, YuanChen, MuLee, Jeehiun K.Bielawski, Christopher W.
Issue Date
2015-09
Publisher
WILEY-V C H VERLAG GMBH
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.54, no.39, pp.11559 - 11563
Abstract
The first isolable, photoswitchable N-heterocyclic carbene was synthesized and found to undergo reversible electrocyclic isomerization upon successive exposure to UV and visible radiation. The UV-induced ring closure afforded substantial changes to the electronic structure of the dithienylethene- based NHC, as evidenced by changes in the corresponding UV/Vis absorption and C-13 NMR spectra. Likewise, molecular orbital calculations revealed diminished electron density at the carbene nucleus upon photocyclization, consistent with the enhanced electrophilicity displayed by the ring-closed form. The photoswitchable NHC was successfully switched between its ring-opened and ring-closed states with high fidelity over multiple cycles. Furthermore, the ring-closed isomer was found to undergo facile N-H bond activation, allowing for the controlled capture and release of ammonia upon cycling between its isomeric states.
URI
https://scholarworks.unist.ac.kr/handle/201301/16804
URL
http://onlinelibrary.wiley.com/doi/10.1002/anie.201506269/suppinfo
DOI
10.1002/anie.201506269
ISSN
1433-7851
Appears in Collections:
CHM_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU