scholarly journals N‐Heterocyclic Carbenes Reduce and Functionalize Copper Oxide Surfaces in One Pot

2020 ◽  
Vol 26 (50) ◽  
pp. 11431-11434
Author(s):  
Alex J. Veinot ◽  
Abrar Al‐Rashed ◽  
J. Daniel Padmos ◽  
Ishwar Singh ◽  
Dianne S. Lee ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Heterocyclic Carbenes ◽  
Oxide Surfaces ◽  
One Pot

scholarly journals N-Heterocyclic Carbenes Reduce and Functionalize Copper Oxide Surfaces in a Single Step

2020 ◽  
Author(s):  
Alex Veinot ◽  
abrar al-rashed ◽  
J. Daniel Padmos ◽  
Mina R. Narouz ◽  
Paul A. Lummis ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Photoelectron Spectroscopy ◽  
Complete Removal ◽  
Single Step ◽  
Heterocyclic Carbenes ◽  
Oxide Surfaces ◽  
Metallic Surfaces ◽  
Hydrogen Carbonate ◽  
Before And After ◽  
Carbonate Salts

Benzimidazolium hydrogen carbonate salts have been shown to act as N-heterocyclic carbene precursors which can remove oxide from copper oxide surfaces and functionalize the resulting metallic surfaces in a single step. Both the surfaces and the etching products are fully characterized by spectroscopic methods. Analysis of surfaces before and after NHC treatment by X-ray photoelectron spectroscopy demonstrates the complete removal of copper(II) oxide. Using <sup>13</sup>C-labelling, we determine that the products of this transformation include a cyclic urea, a ring-opened formamide and a bis-carbene copper(I) complex. These results illustrate the potential of NHCs to functionalize a much broader class of metals, including those prone to oxide treatment, greatly facilitating the preparation of NHC-based films on metals other than gold.

scholarly journals N-Heterocyclic Carbenes Reduce and Functionalize Copper Oxide Surfaces in a Single Step

2020 ◽  
Author(s):  
Alex Veinot ◽  
abrar al-rashed ◽  
J. Daniel Padmos ◽  
Mina R. Narouz ◽  
Paul A. Lummis ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Photoelectron Spectroscopy ◽  
Complete Removal ◽  
Single Step ◽  
Heterocyclic Carbenes ◽  
Oxide Surfaces ◽  
Metallic Surfaces ◽  
Hydrogen Carbonate ◽  
Before And After ◽  
Carbonate Salts

Benzimidazolium hydrogen carbonate salts have been shown to act as N-heterocyclic carbene precursors which can remove oxide from copper oxide surfaces and functionalize the resulting metallic surfaces in a single step. Both the surfaces and the etching products are fully characterized by spectroscopic methods. Analysis of surfaces before and after NHC treatment by X-ray photoelectron spectroscopy demonstrates the complete removal of copper(II) oxide. Using <sup>13</sup>C-labelling, we determine that the products of this transformation include a cyclic urea, a ring-opened formamide and a bis-carbene copper(I) complex. These results illustrate the potential of NHCs to functionalize a much broader class of metals, including those prone to oxide treatment, greatly facilitating the preparation of NHC-based films on metals other than gold.

Insights into the synergistic role of metal–lattice oxygen site pairs in four-centered C–H bond activation of methane: the case of CuO

2016 ◽  
Vol 6 (11) ◽  
pp. 3984-3996 ◽  
Author(s):  
Jithin John Varghese ◽  
Quang Thang Trinh ◽  
Samir H. Mushrif
Keyword(s):  
Activation Energy ◽  
Copper Oxide ◽  
Bond Activation ◽  
Lattice Oxygen ◽  
Oxide Surfaces ◽  
Energy Barriers ◽  
Metal Lattice ◽  
Oxygen Site ◽  
Site Pair

Of the three mechanisms for activation of methane on copper and copper oxide surfaces, the under-coordinated Cu–O site pair mediated mechanism on CuO surfaces has the lowest activation energy barriers.

Intrinsically water-repellent copper oxide surfaces; An electro-crystallization approach

2018 ◽  
Vol 443 ◽  
pp. 191-197 ◽  
Author(s):  
Raziyeh Akbari ◽  
Gabriela Ramos Chagas ◽  
Guilhem Godeau ◽  
Mohammadreza Mohammadizadeh ◽  
Frédéric Guittard ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Oxide Surfaces ◽  
Water Repellent

One Pot Tandem Dual C=C and C=O Bond Reductions in β-Alkylation of Secondary Alcohols with Primary Alcohols by Ruthenium Complexes of Amido and Picolyl Functionalized N-Heterocyclic Carbenes

2021 ◽  
Author(s):  
A. P. Prakasham ◽  
Sabyasachi Ta ◽  
Shreyata Dey ◽  
Prasenjit Ghosh
Keyword(s):  
Ruthenium Complexes ◽  
Heterocyclic Carbenes ◽  
Secondary Alcohols ◽  
Coupling Reactions ◽  
Primary Alcohols ◽  
One Pot ◽  
The One ◽  
Alcohol Alcohol

Two different class of ruthenium complexes, namely, [1-mesityl-3-(2,6-Me2-phenylacetamido)-imidazol-2-ylidene]Ru(p-cymene)Cl (1c) and {[1-(pyridin-2-ylmethyl)-3-(2,6-Me2-phenyl)-imidazol-2-ylidene]Ru(p-cymene)Cl}Cl (2c), successfully carried out the one-pot tandem alcohol-alcohol coupling reactions of a variety of secondary and primary alcohols, in...

ChemInform Abstract: Ligand-Free Nano Copper Oxide Catalyzed Cyanation of Aryl Halides and Sequential One-Pot Synthesis of 5-Substituted-1H-tetrazoles.

ChemInform ◽  
2013 ◽  
Vol 44 (52) ◽  
pp. no-no
Author(s):  
Umanadh Yapuri ◽  
Sadanandam Palle ◽  
Omprakash Gudaparthi ◽  
Srinivasa Reddy Narahari ◽  
Dhwajbahadur K. Rawat ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Aryl Halides ◽  
One Pot ◽  
One Pot Synthesis ◽  
Ligand Free
Sign in / Sign up

Export Citation Format

Share Document