Carbenes and phosphonium ylides: a fruitful association in coordination chemistry

2021 ◽  
Author(s):  
Yves CANAC ◽  
Dmitry A. Valyaev
Keyword(s):  
Coordination Chemistry ◽  
Heterocyclic Carbenes ◽  
Donor Ligands ◽  
Available Carbon

Among a plethora of σ-donor ligands available, carbon-centered ones have become essential, in particular with the emergence of N-heterocyclic carbenes (NHCs), positioning themselves as credible alternatives to traditional nitrogen- and...

Dative behavior of N-heterocyclic carbenes (NHCs) with selenium in Se-NHC compounds

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Munazzah Yaqoob ◽  
Mahvish Abbasi ◽  
Hira Anwar ◽  
Javed Iqbal ◽  
Mohammad Asad ◽  
...  
Keyword(s):  
Nitrogen Atom ◽  
Carbon Atom ◽  
Lone Pair ◽  
Heterocyclic Ring ◽  
Heterocyclic Carbenes ◽  
The Other ◽  
Donor Ligands ◽  
Important Research ◽  
Dative Bond ◽  
Back Bonding

Abstract N-heterocyclic carbenes (NHCs) are an eminent class of carbenes having a heterocyclic ring in which a divalent carbon atom is attached directly to a nitrogen atom. In the NHCs, the donation of lone pair is another important research in the dative bonding and not only in NHCs the dative bond plays a functionalized role in the other classes of complex formation like ylidones L → E ← L and carbones L → C ← L. M–NHC bond is L-M sigma-dative bond and NHCs are considered as strong sigma-donor ligands. The clear picture of the M–NHC bond can be better understood by M–NHC pi-interaction. M-L pi interaction is comprised of two steps. One is L → M sigma-donation and M → L π* back bonding. This dative donor nature of NHC and also its behavior in organoselenium is studied through DFT in which it’s optimized structure, bond lengths, molecular vibrations are calculated.

Abnormal C5-Bound N-Heterocyclic Carbenes:  Extremely Strong Electron Donor Ligands and Their Iridium(I) and Iridium(III) Complexes

2004 ◽  
Vol 23 (10) ◽  
pp. 2461-2468 ◽  
Author(s):  
Anthony R. Chianese ◽  
Anes Kovacevic ◽  
Brian M. Zeglis ◽  
J. W. Faller ◽  
Robert H. Crabtree
Keyword(s):  
Electron Donor ◽  
Heterocyclic Carbenes ◽  
Donor Ligands ◽  
Strong Electron

scholarly journals Straightforward access to chalcogenoureas derived from N-heterocyclic carbenes and their coordination chemistry

2020 ◽  
Vol 49 (34) ◽  
pp. 12068-12081
Author(s):  
Marina Saab ◽  
David J. Nelson ◽  
Nikolaos V. Tzouras ◽  
Tahani A. C. A. Bayrakdar ◽  
Steven P. Nolan ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Heterocyclic Carbenes ◽  
Coinage Metals

Herein, we describe a straightforward access to chalcogenoureas derived from N-heterocyclic carbenes, and we investigate the coordination chemistry of selenoureas with coinage metals.

Coordination Chemistry of Tetradentate N-Donor Ligands Containing Two Pyrazolyl−Pyridine Units Separated by a 1,8-Naphthyl Spacer:  Dodecanuclear and Tetranuclear Coordination Cages and Cyclic Helicates

2006 ◽  
Vol 45 (10) ◽  
pp. 3905-3919 ◽  
Author(s):  
Stephen P. Argent ◽  
Harry Adams ◽  
Thomas Riis-Johannessen ◽  
John C. Jeffery ◽  
Lindsay P. Harding ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Donor Ligands ◽  
Coordination Cages

Coordination Chemistry of Highly Hemilabile Bidentate Sulfoxide N-Heterocyclic Carbenes with Palladium(II)

2014 ◽  
Vol 9 (12) ◽  
pp. 3498-3510 ◽  
Author(s):  
Kuo-Hsuan Yu ◽  
Chia-Ching Wang ◽  
I-Hsin Chang ◽  
Yi-Hung Liu ◽  
Yu Wang ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Heterocyclic Carbenes

Coordination chemistry of half-open trozircenes: Adduct formation of [(η7-C7H7)Zr(η5-2,4-C7H11)] with isocyanides, phosphines and N-heterocyclic carbenes

2010 ◽  
Vol 364 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Andreas Glöckner ◽  
Atta M. Arif ◽  
Richard D. Ernst ◽  
Thomas Bannenberg ◽  
Constantin G. Daniliuc ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Adduct Formation ◽  
Heterocyclic Carbenes
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