Uncommon Carbene-to-Azole Ligand Rearrangement of N-heterocyclic Carbenes in a Ruthenium System

2021 ◽  
Author(s):  
Bo Zhang ◽  
Yu'ai Duan ◽  
Xin Zhang ◽  
Shuai Guo
Keyword(s):  
Heterocyclic Carbenes ◽  
System P ◽  
New Type

The study of non-innocent behavior of NHCs (NHCs = N-heterocyclic carbenes) has great implications for NHC-involved catalysis. Herein, we report a new type of NHC-to-azole rearrangement, during which process the...

N-Substituted tetrahydropentaazadibenzocycloheptafluorenes – a new type of condensed polyazapolycyclic system

2021 ◽  
Author(s):  
Elena B. Rakhimova ◽  
Victor Yu. Kirsanov ◽  
Ekaterina S. Mescheryakova ◽  
Leonard M. Khalilov ◽  
Askhat G. Ibragimov
Keyword(s):  
Synthetic Route ◽  
System P ◽  
New Type

Ni-Catalyzed heterocyclization of octahydro-2,2′-biquinazoline with 1,3,5-triazinanes is an efficient synthetic route to mono-N-substituted tetrahydro-4b,5a,10b,12,13a-pentaazadibenzo[a,h]-cyclohepta[1,2,3,4-def]fluorenes.

A highly efficient thiazolylidene catalyzed acetoin formation: reaction, tolerance and catalyst recycling

2014 ◽  
Vol 50 (82) ◽  
pp. 12308-12310 ◽  
Author(s):  
Liuqun Gu ◽  
Ting Lu ◽  
Xiukai Li ◽  
Yugen Zhang
Keyword(s):  
Catalyst Recycling ◽  
Formation Reaction ◽  
Highly Efficient ◽  
System P ◽  
New Type

An efficient formation of acetoin from acetaldehyde was achieved under thiazolylidene catalysis and a new type of solid supported system.

Wavelength-switchable photocurrent in a hybrid TiO2–Ag nanocluster photoelectrode

2015 ◽  
Vol 51 (60) ◽  
pp. 12072-12075 ◽  
Author(s):  
Hongjun Chen ◽  
Qiong Wang ◽  
Miaoqiang Lyu ◽  
Zhi Zhang ◽  
Lianzhou Wang
Keyword(s):  
Visible Light ◽  
Light Wavelength ◽  
System P ◽  
Visible Light Active ◽  
New Type ◽  
Ag Ncs

A new type of hybrid TiO2–Ag nanocluster (NC) photoelectrode exhibits wavelength-switchable photocurrent by tuning the light wavelength from ultraviolet (UV) to visible light. The combination of UV-active TiO2 and visible-light-active Ag NCs with photoelectrochemical behaviour leads to the unique switchable photocurrent in the system.

The design of an inner-motile waste-energy-driven piezoelectric catalytic system

2021 ◽  
Author(s):  
Fengping Peng ◽  
Wanxin Xu ◽  
Yunya Hu ◽  
Weijie Fu ◽  
Haozhen Li ◽  
...  
Keyword(s):  
Catalytic System ◽  
Ciliary Movement ◽  
Magnetically Actuated ◽  
System P ◽  
Artificial Cilia ◽  
Waste Energy ◽  
New Type

Inspired by the microorganisms in nature, a new type of waste-energy-driven catalytic film is explored firstly by using magnetically actuated artificial cilia. Due to its singular characteristic of ciliary movement,...

scholarly journals Characterization of Chlorella vulgaris and Chlorella protothecoides using multi-pixel photon counters in a 3D focusing optofluidic system

RSC Advances ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 4402-4408 ◽  
Author(s):  
Jonathan B. Vander Wiel ◽  
Jonathan D. Mikulicz ◽  
Michael R. Boysen ◽  
Niloofar Hashemi ◽  
Patrick Kalgren ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Power Consumption ◽  
Chlorella Vulgaris ◽  
Chlorella Protothecoides ◽  
Photon Counter ◽  
System P ◽  
New Type

A new type of multi-pixel photon counter was employed to miniaturize the device, lower its power consumption, and make it insensitive to magnetic fields.

scholarly journals CO2-switchable polymer-hybrid silver nanoparticles and their gas-tunable catalytic activity

RSC Advances ◽  
2017 ◽  
Vol 7 (78) ◽  
pp. 49777-49786 ◽  
Author(s):  
Zanru Guo ◽  
Hongjian Gu ◽  
Wei Ma ◽  
Qiang Chen ◽  
Zhanfeng He ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Catalytic Activity ◽  
Flow Rate ◽  
Reaction System ◽  
Polymer Hybrid ◽  
System P ◽  
New Type

A new type CO2-switchable AgNPs hybrids show switchable and monotonous tunable catalytic activity for the reduction of 4-nitrophenol by varying the flow rate of CO2purged into the reaction system.

A portable electrochemiluminescence bipolar electrode array for the visualized sensing of Cas9 activity

The Analyst ◽  
2020 ◽  
Vol 145 (10) ◽  
pp. 3569-3574
Author(s):  
Rui Guo ◽  
Shanwen Hu ◽  
Zonghua Wang
Keyword(s):  
Electrode Array ◽  
Electric Circuit ◽  
Bipolar Electrode ◽  
System P ◽  
New Type

A new type of closed BPE-ECL system based on an Au electric circuit at a portable substrate is designed for the visualized sensing of Cas9 Activity in the CRISPR/Cas9 system.

Nucleophilic boron strikes back

2012 ◽  
Vol 84 (11) ◽  
pp. 2219-2231 ◽  
Author(s):  
Henrik Gulyás ◽  
Amadeu Bonet ◽  
Cristina Pubill-Ulldemolins ◽  
Cristina Solé ◽  
Jessica Cid ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Heterocyclic Carbenes ◽  
Lewis Base ◽  
Acid Base ◽  
New Type

It has been demonstrated that the interaction of a simple Lewis base with tetraalkoxydiboranes generates an unusual nucleophilic character in one of the boryl moieties. The interaction of amines, N-heterocyclic carbenes (NHCs), and alkoxides with a diboron reagent results in the formation of a Lewis acid–base adduct, in which the formally intact sp2 boryl moiety becomes nucleophilic. We describe in this work the application of this new type of nucleophilic boron synthon in the selective preparation of organoboranes through β-boration and diboration reactions.

scholarly journals Extending N-heterocyclic carbene ligands into the third dimension: a new type of hybrid phosphazane/NHC system

2015 ◽  
Vol 6 (4) ◽  
pp. 2506-2510 ◽  
Author(s):  
Torsten Roth ◽  
Vladislav Vasilenko ◽  
Callum G. M. Benson ◽  
Hubert Wadepohl ◽  
Dominic S. Wright ◽  
...  
Keyword(s):  
Carbene Ligands ◽  
The Third ◽  
System P ◽  
New Type ◽  
Third Dimension

A new type of hybrid phosph(III)azane/NHC system is described in which a phosphazane P2N2 ring provides unique opportunities for modifying the electronic and steric character of these carbenes.

The Microstructure of Shock-Synthesized Diamond

1967 ◽  
Vol 25 ◽  
pp. 324-325
Author(s):  
Lucien F. Trueb
Keyword(s):  
Single Crystals ◽  
Preferred Orientation ◽  
High Magnification ◽  
Texture Pattern ◽  
Shock Process ◽  
New Type ◽  
Diffraction Diagram

A new type of synthetic industrial diamond formed by an explosive shock process has been recently developed by the Du Pont Company. This material consists of a mixture of two basically different forms, as shown in Figure 1: relatively flat and compact aggregates of acicular crystallites, and single crystals in the form of irregular polyhedra with straight edges.Figure 2 is a high magnification micrograph typical for the fibrous aggregates; it shows that they are composed of bundles of crystallites 0.05-0.3 μ long and 0.02 μ. wide. The selected area diffraction diagram (insert in Figure 2) consists of a weak polycrystalline ring pattern and a strong texture pattern with arc reflections. The latter results from crystals having preferred orientation, which shows that in a given particle most fibrils have a similar orientation.

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