scholarly journals Properties and prospects for rhenium(i) tricarbonyl N-heterocyclic carbene complexes

2018 ◽  
Vol 54 (88) ◽  
pp. 12429-12438 ◽  
Author(s):  
Peter V. Simpson ◽  
Marco Falasca ◽  
Massimiliano Massi
Keyword(s):  
Carbene Ligands ◽  
Carbene Complexes ◽  
New Class ◽  
Rhenium Tricarbonyl

Rhenium tricarbonyl complexes bound to N-heterocyclic carbene ligands are emerging as a new class of complexes with promising applications in a wide variety of areas.

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

Charge neutral rhenium tricarbonyl complexes of tridentate N-heterocyclic carbene ligands that bind to amyloid plaques of Alzheimer's disease

2020 ◽  
Vol 49 (14) ◽  
pp. 4559-4569 ◽  
Author(s):  
Nuchareenat Wiratpruk ◽  
Asif Noor ◽  
Catriona A. McLean ◽  
Paul S. Donnelly ◽  
Peter J. Barnard
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Amyloid Plaques ◽  
Tridentate Ligand ◽  
Carbene Ligands ◽  
Rhenium Tricarbonyl

Two tridentate ligand systems bearing N-heterocyclic carbene (NHC), amine and carboxylate donor groups coupled to benzothiazole- or stilbene-based amyloid binding moieties were synthesised.

Carbene Adducts of Dimethylcadmium

1999 ◽  
Vol 54 (11) ◽  
pp. 1350-1356 ◽  
Author(s):  
Anthony J. Arduengo ◽  
Jens R. Goerlicha ◽  
Fredric Davidson ◽  
William J. Marshall
Keyword(s):  
Nmr Spectroscopy ◽  
Bond Distance ◽  
Imidazole Ring ◽  
Methyl Groups ◽  
Carbene Ligands ◽  
Cadmium Complexes ◽  
Carbene Complexes ◽  
X Ray ◽  
Planar Geometries

The first examples of carbene-cadmium complexes are reported from the reactions of a variety of imidazol-2-ylidenes or imidazolin-2-ylidenes with dimethylcadmium. Four new carbene complexes are characterized by NMR spectroscopy (1H , 13C and 113Cd). The cadmium centers are strongly shifted downfield (100 -150 ppm) by interaction with the carbenes. X-ray structures are reported for three carbene-cadmium 1:1 adducts. The cadmium centers exhibit distorted trigonal-planar geometries in which the carbene ligands have an average 18.2 pm longer bond distance to cadmium compared to the methyl groups. The planes of cadmium coordination are twisted with respect to the plane of the imidazole ring. The more basic imidazolin-2-ylidene is shown to displace imidazol-2-ylidenes from the cadmium center.

Functionalised Saturated-Backbone Carbene Ligands: Yttrium and Uranyl Alkoxy-Carbene Complexes and Bicyclic Carbene-Alcohol Adducts

2008 ◽  
Vol 14 (33) ◽  
pp. 10415-10422 ◽  
Author(s):  
Polly L. Arnold ◽  
Ian J. Casely ◽  
Zoë R. Turner ◽  
Christopher D. Carmichael
Keyword(s):  
Carbene Ligands ◽  
Carbene Complexes

scholarly journals Synthese, Molekül-und Elektronenstruktur eines Radikal-Kationkomplexes [Cr(CO)4(Carben)2]+ / Synthesis, Molecular and Electronic Structure of a Radical Cationic Complex [Cr(CO)4(Carbene)2]+

1983 ◽  
Vol 38 (11) ◽  
pp. 1313-1324 ◽  
Author(s):  
Klaus Ackermann ◽  
Peter Hofmann ◽  
Frank H. Köhler ◽  
Hans Kratzer ◽  
Herbert Krist ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Molecular Orbital Calculations ◽  
Cationic Complex ◽  
Carbene Ligands ◽  
Carbene Complexes ◽  
One Step ◽  
Chromium Compounds ◽  
First Time ◽  
Molecular And Electronic Structure ◽  
Cation Complexes

Abstract A new one-step synthesis for bis-carbene complexes cis-M(CO)4L2 (M = Cr, Mo, W) containing cyclic carbene ligands L has been developed. These compounds can be oxidized by ferrocenium salts to paramagnetic cation complexes [M(CO)4L2]+ which, for M = Cr, are isolable in the form of their PF6 salts. The chromium compounds with L= 1,3-dimethyl-4-imidazolin-2-ylidene permit for the first time a structural and spectroscopic comparison of a diamagnetic carbene complex with the corresponding paramagnetic cation; the experimental facts are interpreted by molecular orbital calculations.

New homoleptic gold carbene complexes via Ag–Au transmetalation: synthesis and application of [Au(diNHC)2]3+ cations as 1H-NMR and UV-vis halide sensors

2020 ◽  
Vol 44 (14) ◽  
pp. 5343-5353
Author(s):  
Marco Baron ◽  
Anna Dall’Anese ◽  
Alessandro Miolato ◽  
Maddalena L. C. Cairoli ◽  
Valerio Di Marco ◽  
...  
Keyword(s):  
1H Nmr ◽  
Carbene Ligands ◽  
Carbene Complexes ◽  
H Nmr ◽  
Anion Sensors

Novel homoleptic gold(iii) complexes with bidentate N-heterocyclic carbene ligands have been successfully synthesised by transmetalation reaction and studied as anion sensors in solution by means of 1H NMR and UV-vis titration experiments.

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