Anionic Amido N-Heterocyclic Carbenes: Synthesis of Covalently Tethered Lanthanide–Carbene Complexes

2003 ◽  
Vol 115 (48) ◽  
pp. 6163-6166 ◽  
Author(s):  
Polly L. Arnold ◽  
Shaheed A. Mungur ◽  
Alexander J. Blake ◽  
Claire Wilson
Keyword(s):  
Heterocyclic Carbenes ◽  
Carbene Complexes

scholarly journals On the Bonding Situation in Stannocene and Plumbocene N-Heterocyclic Carbene Complexes

2019 ◽  
Author(s):  
Diego Andrada ◽  
Sergi Danés ◽  
Lisa Wirtz ◽  
Carsten Mueller ◽  
Volker Huch ◽  
...  
Keyword(s):  
Computational Study ◽  
Decomposition Analysis ◽  
Heterocyclic Carbenes ◽  
Lewis Base ◽  
Energy Decomposition Analysis ◽  
Dispersion Interactions ◽  
X Ray Diffraction ◽  
Group 14 ◽  
Carbene Complexes ◽  
Covalent Interactions

A detailed experimental and computational study of a series of stannocene and plumbocene N-heterocyclic carbene complexes is presented. This unique class of group 14 Lewis acid base adducts was obtained from reactions of the corresponding metallocenes and N-heterocyclic carbenes (NHC), and were structurally characterized by single crystal X-ray diffraction. The obtained structures show a perpendicular pose of the NHC with respect to the metallocene, hence precluding the maximal interaction between the moieties. The nature of the Sn-CNHC and Pb-CNHC bonds have been investigated by applying Energy Decomposition Analysis (EDA-NOCV). For the sake of comparison, known stannocene and plumbocene Lewis base complexes have been included in the series. The attractive chemical bonding interactions are around 50% electrostatic, 30% covalent and 20% dispersion. Indeed, dispersion interactions play a determining role the bigger the substituents become. The covalent interactions derive from the donation of the carbene ligand into the empty p orbital of the metallocene.

Homolytic cleavage of Lawesson's reagent: N-heterocyclic carbene complexes of ArPS2 (Ar = 4-CH3O-C6H4)

2018 ◽  
Vol 47 (18) ◽  
pp. 6299-6303 ◽  
Author(s):  
Ebrahim Soleimani ◽  
Katherine N. Robertson ◽  
Cory C. Pye ◽  
Jason A. C. Clyburne
Keyword(s):  
Heterocyclic Carbenes ◽  
Homolytic Cleavage ◽  
Carbene Complexes ◽  
Lawesson’S Reagent ◽  
Lawesson's Reagent

Lawesson's reagent has been shown to react with the N-heterocyclic carbenes [1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) and 1,3-bis(2,6-diisopropylphenyl)imidazolidin-2-ylidene (SIPr)] to give adducts of the general form NHC·P(S)2-C6H4OCH3.

scholarly journals Acylseleno- and acylthioureato complexes of gold(i) N-heterocyclic carbenes

2019 ◽  
Vol 43 (27) ◽  
pp. 10750-10754 ◽  
Author(s):  
Julia Kuchar ◽  
Jörg Rust ◽  
Christian W. Lehmann ◽  
Fabian Mohr
Keyword(s):  
Heterocyclic Carbenes ◽  
One Pot ◽  
Carbene Complexes

Gold(i) N-heterocyclic carbene complexes with anionic acylselenourea ligands bound to gold only through selenium were prepared in a one-pot procedure.

Anionic Amido N-Heterocyclic Carbenes: Synthesis of Covalently Tethered Lanthanide–Carbene Complexes

2003 ◽  
Vol 42 (48) ◽  
pp. 5981-5984 ◽  
Author(s):  
Polly L. Arnold ◽  
Shaheed A. Mungur ◽  
Alexander J. Blake ◽  
Claire Wilson
Keyword(s):  
Heterocyclic Carbenes ◽  
Carbene Complexes

scholarly journals Cross C–S coupling reaction catalyzed by copper(i) N-heterocyclic carbene complexes

RSC Advances ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 4912-4920 ◽  
Author(s):  
Wei-Kai Huang ◽  
Wei-Ting Chen ◽  
I.-Jui Hsu ◽  
Chien-Chung Han ◽  
Shin-Guang Shyu
Keyword(s):  
Dft Calculation ◽  
Coupling Reaction ◽  
Heterocyclic Carbenes ◽  
Aryl Halides ◽  
Catalytic Cycle ◽  
Carbene Complexes ◽  
The Cross

Copper(i) N-heterocyclic carbenes catalyze the cross C–S coupling reaction with good activities towards aryl halides. A plausible catalytic cycle is proposed, with the support of DFT calculation.

Lipophilicity-dependent ruthenium N-heterocyclic carbene complexes as potential anticancer agents

2015 ◽  
Vol 44 (16) ◽  
pp. 7324-7331 ◽  
Author(s):  
Gaochao Lv ◽  
Liubin Guo ◽  
Ling Qiu ◽  
Hui Yang ◽  
Tengfei Wang ◽  
...  
Keyword(s):  
Cell Lines ◽  
Anticancer Agents ◽  
Heterocyclic Carbenes ◽  
Carbene Complexes

Five novel Ru(ii)–N-heterocyclic carbenes (NHC) were synthesized and biologically evaluated, one of which showed superior activity against PC-3 cell lines and 6 fold more activity than cisplatin.

scholarly journals The “weak base route” leading to transition metal–N-heterocyclic carbene complexes

2021 ◽  
Vol 57 (32) ◽  
pp. 3836-3856
Author(s):  
Ekaterina A. Martynova ◽  
Nikolaos V. Tzouras ◽  
Gianmarco Pisanò ◽  
Catherine S. J. Cazin ◽  
Steven P. Nolan
Keyword(s):  
Transition Metal ◽  
Organometallic Chemistry ◽  
Heterocyclic Carbenes ◽  
Synthetic Route ◽  
Weak Base ◽  
Carbene Complexes

N-Heterocyclic carbenes (NHCs) are nowadays ubiquitous in organometallic chemistry and catalysis. A simple synthetic route to these is presented.

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