Results 51 to 60 of about 13,631,199 (274)

[3,3′-Dimesityl-1,1′-(4,5:16,17-dibenzo-3,6,9,12,15,18-hexaoxaeicosane-1,20-diyl)diimidazolin-2-ylidene]dithiocyanatopalladium(II)

Acta Crystallographica Section E, 2009
The coordination geometry of the Pd atom in the title compound, [Pd(SCN)2(C46H54N4O6)], is approximately square-planar. The N-heterocyclic carbene (NHC) metallacrown ether ligand binds to the Pd atom in a trans orientation through the carbene C atoms of ...
Mei-Ming Luo, Xiao-Qin Zhang
doaj   +1 more source

Natureza da ligação Ru-NO em novos nitrosilo complexos de rutênio com ligantes quelantes CCC e CNC contendo carbenos [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Compostos capazes de liberar ou sequestrar óxido nítrico são promissores agentes ...
Coimbra, Daniel Fernando
core  

Ligand‐Dependent Locally Excited and Charge‐Transfer Emission in Linear Copper(I) Mesoionic Carbene Luminophores

Advanced Optical Materials, EarlyView.
Ligand engineering enables precise control of emission in linear Cu(I) complexes by tuning donor–acceptor interactions between electron‐rich amines and π‐accepting mesoionic carbenes. Naphthyl‐substituted carbenes promote locally excited phosphorescence with vibronic structure, whereas electron‐rich amides combined with electron‐poor carbenes favor ...
Felix León, Changfeng Si, Chenfei Li, Adisak Thanetchaiyakup, Thomas V. Papineau, Denis Jacquemin, Eli Zysman‐Colman, Han Sen Soo   +7 more
wiley   +1 more source

One‐End‐Truncated Au52 and Au70 Quantum Rods: High‐Quantum‐Yield NIR‐II Emitters With Aspect‐Ratio‐Dominated Photophysics

Angewandte Chemie, EarlyView.
Two nanoclusters, Au52(PET)38 and Au70(PET)50, where PET = 2‐phenylethanethiolate, are isolated, which constitute a series of one‐end‐truncated kernel topologies. Both Au52 and Au70 exhibit NIR‐II absorption at 1032 and 1275 nm and nanosecond fluorescence at 1100 and 1360 nm, respectively, with high quantum yields (20.9% for Au52 and 14.8% for Au70 ...
Lianshun Luo, Avirup Sardar, Guiying He, Abhrojyoti Mazumder, Guoxiang Hu, Gangli Wang, Rongchao Jin   +6 more
wiley   +2 more sources

A Stable N-Heterocyclic Carbene with a Diboron Backbone

, 2016
The synthesis of a novel five-membered inorganic ring, a stable N-heterocyclic carbene with a diboron backbone, is reported. A pentacarbonyltungsten complex containing the new carbene is also described.
Kelly E. Krahulic (2378107), Gary D. Enright (2268484), Masood Parvez (1569997), Roland Roesler (2373586)   +3 more
core   +4 more sources

N‑heterocyclic carbene complexes provide a platform for functional amphidynamic crystals

Communications Chemistry, 2021
Organizing molecular rotors in highly ordered crystals enables the use of molecular motion to control physical properties. Now, N‑heterocyclic carbene complexes form a basis for molecular gyroscopes in which solid-state emission is quenched by axle ...
Victoria Richards
doaj   +1 more source

Hyperpolarization of [1‐13C]Ketoisocaproate‐d2 by Reversible Exchange with Parahydrogen Enables Profiling of Branched‐Chain‐Amino‐Acid Metabolism in Cellulo and in Vivo

Advanced Science, EarlyView.
We report the fast generation of biocompatible solutions of highly 13C‐hyperpolarized (≈11%) partially‐deuterated ketoisocaproate within <6 min using spin‐lock‐induced crossing and reversible exchange with parahydrogen (SLIC‐SABRE). This enables rapid detection of branched‐chain‐amino‐acid transferase 1 (BCAT1) protein expression and investigation of ...
Stefan Petersen, Philipp R. Groß, Paul M. Schmidt, Henri de Maissin, Asitan Rittinger, Robert Willing, Adriana Sacristán‐Martín, Lisa Heß, Jule Koch, Sebastian Lucas, Maxim Zaitsev, Dominik von Elverfeldt, Martin Grashei, Franz Schilling, Jan‐Bernd Hövener, André F. Martins, Max von Delius, Thomas Reinheckel, Andreas B. Schmidt   +18 more
wiley   +1 more source

P‐Directed and Lewis Acid‐Assisted Pd‐Catalyzed Si─Me Bond Activation Enabling Alkyl Exchange at Silicon

Angewandte Chemie, EarlyView.
A new type of Si─Me bond activation enabling catalytic alkyl exchange at Si was developed. It involves a P‐directing group and Pd─Lewis acid cooperation. It enables the conversion of Me3SiCl into silanols with three different organic substituents. ABSTRACT A novel mode of Si─Me bond activation has been unveiled through the cooperative action of a P ...
Hajime Kameo, Kanta Oishi, Keitaro Yamanaka, Akihiro Mushiake, Hiroyuki Matsuzaka, Didier Bourissou   +5 more
wiley   +2 more sources

N-Heterocyclic Carbene Adducts of Aluminium Triiodide

, 2009
Ghadwal R, Roesky HW, Herbst-Irmer R, Jones PG. N-Heterocyclic Carbene Adducts of Aluminium Triiodide. Zeitschrift für anorganische und allgemeine Chemie.
Jones, Peter G., Ghadwal, Rajendra ; https://orcid.org/, Roesky, Herbert W., Herbst-Irmer, Regine   +3 more
core   +2 more sources

Desymmetrization of N-Cbz glutarimides through N-heterocyclic carbene organocatalysis

Nature Communications, 2022
Desymmetrization of achiral building blocks is one of the most efficient ways to access enantiopure compounds of synthetic relevance. Here, the authors desymmetrize glutarimides with alcohols via an imide C–N bond cleavage under NHC organocatalysis.
Zhouli Hu, Chenlong Wei, Qianqian Shi, Xianfang Hong, Jinhua Liu, Xiangui Zhou, Jinna Han, Wei Cao, Ashis Kumar Gupta, Xiaoxiang Zhang, Donghui Wei, Zhenqian Fu, Wei Huang   +12 more
doaj   +1 more source