ChemInform Abstract: Anionic N-Heterocyclic Carbenes: Synthesis, Coordination Chemistry and Applications in Homogeneous Catalysis

ChemInform ◽  
2016 ◽  
Vol 47 (32) ◽  
Author(s):  
Alexandre Nasr ◽  
Andrea Winkler ◽  
Matthias Tamm
Keyword(s):  
Coordination Chemistry ◽  
Homogeneous Catalysis ◽  
Heterocyclic Carbenes

scholarly journals Unraveling the coordination structure-performance relationship in Pt1/Fe2O3 single-atom catalyst

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Yujing Ren ◽  
Yan Tang ◽  
Leilei Zhang ◽  
Xiaoyan Liu ◽  
Lin Li ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Homogeneous Catalysis ◽  
Catalytic Performance ◽  
Inert Atmosphere ◽  
Single Atom ◽  
Unique Role ◽  
Local Coordination ◽  
Single Atoms ◽  
Heterogeneous And Homogeneous Catalysis

Abstract Heterogeneous single-atom catalyst (SAC) opens a unique entry to establishing structure–performance relationship at the molecular level similar to that in homogeneous catalysis. The challenge lies in manipulating the coordination chemistry of single atoms without changing single-atom dispersion. Here, we develop an efficient synthetic method for SACs by using ethanediamine to chelate Pt cations and then removing the ethanediamine by a rapid thermal treatment (RTT) in inert atmosphere. The coordination chemistry of Pt single atoms on a Fe2O3 support is finely tuned by merely adjusting the RTT temperature. With the decrease in Pt-O coordination number, the oxidation state of Pt decreases, and consequently the hydrogenation activity increases to a record level without loss of chemoselectivity. The tunability of the local coordination chemistry, oxidation states of the metal, and the catalytic performance of single atoms reveals the unique role of SACs as a bridge between heterogeneous and homogeneous catalysis.

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 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

Lower- and upper-rim-modified derivatives of 1,3,5-triaza-7-phosphaadamantane: Coordination chemistry and applications in catalytic reactions in water

2012 ◽  
Vol 85 (2) ◽  
pp. 385-396 ◽  
Author(s):  
Luca Gonsalvi ◽  
Antonella Guerriero ◽  
Frédéric Hapiot ◽  
Donald A. Krogstad ◽  
Eric Monflier ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Homogeneous Catalysis ◽  
Water Soluble ◽  
Catalytic Reactions ◽  
Water Soluble Phosphine ◽  
Upper Rim ◽  
Derivatives Of

In this article, a brief review of the recent functionalizations of the cage-like water-soluble phosphine 1,3,5-triaza-7-phosphaadamantane (PTA), involving N-quaternization (lower rim) and introduction of a side arm in C-6 position (upper rim) will be presented, highlighting selected examples in their use as ligands for ruthenium(II), iridium(I), and rhodium(I) moieties together with applications of the related complexes in homogeneous catalysis.

1,3-P,N hybrid ligands in mononuclear coordination chemistry and homogeneous catalysis

2019 ◽  
Vol 380 ◽  
pp. 1-16 ◽  
Author(s):  
Mark K. Rong ◽  
Flip Holtrop ◽  
J. Chris Slootweg ◽  
Koop Lammertsma
Keyword(s):  
Coordination Chemistry ◽  
Homogeneous Catalysis ◽  
Hybrid Ligands
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