Correlating Electronic Properties of N ‐Heterocyclic Carbenes with Structure, and the Implications of Using Different Probes

2022 ◽  
Vol 7 (2) ◽  
Author(s):  
Christopher Barnett ◽  
Jason B. Harper ◽  
Marcus L. Cole
Keyword(s):  
Electronic Properties ◽  
Heterocyclic Carbenes

scholarly journals Stable Planar Six-π-Electron Six-Membered N-Heterocyclic Carbenes with Tunable Electronic Properties

2005 ◽  
Vol 127 (29) ◽  
pp. 10182-10183 ◽  
Author(s):  
Carsten Präsang ◽  
Bruno Donnadieu ◽  
Guy Bertrand
Keyword(s):  
Electronic Properties ◽  
Heterocyclic Carbenes

scholarly journals Synthesis, Reactivity and Electronic Properties of Quinazolin‐2‐one‐Based N‐Heterocyclic Carbenes

2021 ◽  
Author(s):  
Peter Brüggemann ◽  
Karol Mzyk ◽  
Marius Molter ◽  
Joscha Nellesen ◽  
Klaus Schaper ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Heterocyclic Carbenes

Redox-Active N-Heterocyclic Carbenes: Design, Synthesis, and Evaluation of Their Electronic Properties

2009 ◽  
Vol 28 (23) ◽  
pp. 6695-6706 ◽  
Author(s):  
Evelyn L. Rosen ◽  
C. Daniel Varnado ◽  
Andrew G. Tennyson ◽  
Dimitri M. Khramov ◽  
Justin W. Kamplain ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Heterocyclic Carbenes ◽  
Design Synthesis ◽  
Redox Active

scholarly journals Influence of Fluorine Substituents on the Electronic Properties of Selenium-N-Heterocyclic Carbene Compounds

Molecules ◽  
2020 ◽  
Vol 25 (21) ◽  
pp. 5161
Author(s):  
Mohamad Shazwan Shah Jamil ◽  
Nor Azam Endot
Keyword(s):  
Electronic Properties ◽  
Chemical Shifts ◽  
Organometallic Compounds ◽  
Heterocyclic Carbenes ◽  
Metal Centre ◽  
Ancillary Ligands ◽  
Nmr Chemical Shifts ◽  
Work Supports

N-heterocyclic carbenes (NHCs) are common ancillary ligands in organometallic compounds that are used to alter the electronic and steric properties of a metal centre. To date, various NHCs have been synthesised with different electronic properties, which can be done by modifying the backbone or changing the nitrogen substituents group. This study describes a systematic modification of NHCs by the inclusion of fluorine substituents and examines the use of selenium-NHC compounds to measure the π-accepting ability of these fluorinated NHC ligands. Evaluation of the 77Se NMR chemical shifts of the selenium adducts reveals that fluorinated NHCs have higher chemical shifts than the non-fluorinated counterparts, IMes and IPh. Higher 77Se NMR chemical shifts values indicate a stronger π-accepting ability of the NHC ligands. The findings of this study suggest that the presence of fluorine atoms has increased the π-accepting ability of the corresponding NHC ligands. This work supports the advantage of the 77Se NMR chemical shifts of selenium-NHC compounds for assessing the influence of fluorine substituents on NHC ligands.

Tuning the Electronic Properties of N-Heterocyclic Carbenes

2007 ◽  
Vol 13 (25) ◽  
pp. 7195-7203 ◽  
Author(s):  
Steffen Leuthäußer ◽  
Daniela Schwarz ◽  
Herbert Plenio
Keyword(s):  
Electronic Properties ◽  
Heterocyclic Carbenes

Structure and Electronic Properties of Benzimidazole and Cycloheptaimidazole Gold N-heterocyclic Carbenes

Polyhedron ◽  
2021 ◽  
pp. 115259
Author(s):  
Ximena Zarate ◽  
Lucian-Cristian Pop ◽  
Manuel Treto-Suárez ◽  
Jorge Tapia ◽  
Eduardo Schott
Keyword(s):  
Electronic Properties ◽  
Heterocyclic Carbenes
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