A facile and new type of route to the redox-active rigid-rod complex [{Mn(dmpe)2(CCH)}2(μ-C4)][PF6] via Mn–C2˙ radical coupling

2001 ◽  
pp. 1266-1267 ◽  
Author(s):  
Francisco J. Fernández ◽  
Olivier Blacque ◽  
Montserrat Alfonso ◽  
Heinz Berke
Keyword(s):  
Radical Coupling ◽  
Redox Active ◽  
New Type ◽  
Rigid Rod

Synthesis of a ferrocene-linked biscyclam: a new type of redox active bismacrocyclic ligand

1999 ◽  
Vol 23 (12) ◽  
pp. 1133-1135 ◽  
Author(s):  
Fre´de´ric Bellouard, ◽  
Françoise Chuburu, ◽  
Jean-Jacques Yaouanc ◽  
Henri Handel ◽  
Yves Le Mest
Keyword(s):  
Redox Active ◽  
New Type

Redox behavior of novel nickel and palladium complexes supported by trianionic non-innocent ligand containing β-diketiminate and phenol groups

2015 ◽  
Vol 19 (01-03) ◽  
pp. 377-387 ◽  
Author(s):  
Yuma Morimoto ◽  
June Takaichi ◽  
Shinichi Hanada ◽  
Kei Ohkubo ◽  
Hideki Sugimoto ◽  
...  
Keyword(s):  
Palladium Complex ◽  
Protonated Form ◽  
Palladium Complexes ◽  
Dalton Trans ◽  
Tert Butyl ◽  
Redox Active ◽  
Amino Phenol ◽  
New Type ◽  
The One ◽  
Nickel And Palladium Complexes

A new type of nickel and palladium complexes with non-innocent β-diketiminate ligand having redox active phenol groups, 2,4-di-tert-butyl-6-(((1E,2E)-3-((3,5-di-tert-butyl-2-hydroxyphenyl)amino)-2-nitroallylidene)amino)phenol ( L H 3, fully protonated form) have been developed, and the structure, physical properties, and reactivity of their one-electron and two-electron oxidized complexes, [MII(L•2-)] and [MII(L-)]+ ( M = Ni II or Pd II ) have been examined in detail. The two-electron oxidized forms of both complexes, [MII(L-)]+, exhibited hydrogen atom abstraction ability from 1,4-cyclohexadiene (CHD) comparable to its copper analog [ Cu II ( L -)]+ (Dalton Trans. 2013; 42: 2438-2444). The one-electron oxidized form of palladium complex, [ Pd II ( L •2-)], was also found to oxidize CHD, whereas the nickel analog, [ Ni II ( L •2-)], exhibited photo-induced oxidation ability of CHD.

Generation and Coupling of[Mn(dmpe)2(CCR)(CC)]. Radicals Producing Redox-Active C4-Bridged Rigid-Rod Complexes

2003 ◽  
Vol 9 (24) ◽  
pp. 6192-6206 ◽  
Author(s):  
Francisco J. Fernández ◽  
Koushik Venkatesan ◽  
Olivier Blacque ◽  
Montserrat Alfonso ◽  
Helmut W. Schmalle ◽  
...  
Keyword(s):  
Redox Active ◽  
Rigid Rod

scholarly journals Redox regulation as a platform for search and design of new type drugs. Search of gastroprotectors among sunstituted coumarins

2014 ◽  
Vol 12 (4) ◽  
pp. 22-42
Author(s):  
Edgar Andreevich Parfenov ◽  
Vladimir Alexandrovich Trapkov ◽  
Petr Dmitriyevich Shabanov
Keyword(s):  
Redox Regulation ◽  
Redox Homeostasis ◽  
Complex Compounds ◽  
Active Metabolites ◽  
Defence Mechanisms ◽  
Redox Active ◽  
Acute Ethanol ◽  
New Type ◽  
Important Position ◽  
Effective Drugs

Redox homeostasis controls most or all processes of normal and pathological physiology. Important position in the defence mechanisms are redox active metabolites As a robust platform for the development of new effective drugs is not screened, but directed the design and search for low molecular weight metabolites natural redox active compounds. This statement confirms the synthesis and study of new gastroprotektors of complex compounds of copper and zinc with coumarin ligands. On the model of acute ethanol rat gastric ulcer shown that preprocessing all tested complex compounds in equimolar doses of 0.15 mmol/kg leads to a considerable reduction in the size of the damage to the wall of the stomach, compared to control, and sucralfat (for 72,5-87,9 %, sucralfat - 52,3%).

Synthesis and Characterization of Redox-Active C4-Bridged Rigid-Rod Complexes with Acetylide-Substituted Manganese End Groups

2005 ◽  
Vol 24 (12) ◽  
pp. 2834-2847 ◽  
Author(s):  
Koushik Venkatesan ◽  
Thomas Fox ◽  
Helmut W. Schmalle ◽  
Heinz Berke
Keyword(s):  
Synthesis And Characterization ◽  
Redox Active ◽  
End Groups ◽  
Rigid Rod

Metal–organic complexes as redox candidates for carbon based pseudo-capacitors

2014 ◽  
Vol 2 (42) ◽  
pp. 18132-18138 ◽  
Author(s):  
Arie Borenstein ◽  
Ohad Fleker ◽  
Shalom Luski ◽  
Laurent Benisvy ◽  
Doron Aurbach
Keyword(s):  
Active Materials ◽  
Organic Complexes ◽  
Redox Active ◽  
Metal Organic ◽  
New Type ◽  
Carbon Based

We present metal–organic complexes as a new type of redox active materials for pseudo-capacitors.

scholarly journals Ferrocenylethynyl - a versatile platform for new molecules to novel materials

2014 ◽  
Vol 19 (1) ◽  
pp. 15
Author(s):  
Hakikulla H. Shah ◽  
Rayya A. Al-Belushi ◽  
Muhammad S. Khan
Keyword(s):  
Material Properties ◽  
Optical Materials ◽  
Chelating Agents ◽  
Functional Materials ◽  
Synthetic Methods ◽  
Electron Delocalization ◽  
Redox Active ◽  
Wide Range ◽  
Rigid Rod ◽  
Open Issues

Ferrocenylethynyl is a key starting material for the synthesis of fascinating new molecules and novel functional materials. It combines the robust and redox-active ferrocene moiety with the rigid-rod ethynyl unit. The ferrocene center provides chemically and electrochemically switchable material properties whereas the ethynyl backbone facilitates electron delocalization along the molecule, yielding materials with the potential for a wide range of applications from sensors to bio-organometallics and pharmaceuticals, from catalysts to nonlinear optical materials, and from fuel additives to chelating agents. However, lifetime performances and costs still need to be optimized to make ferrocenylethynyl-based materials commercially competitive. Efficient synthetic methods are already in place which could play a key role in the progress of these materials. This review discusses the main approaches adopted in the synthesis of ferrocenylethynyl-based molecules and materials. Representative examples of each method are reported, highlighting its significant achievements together with the open issues and challenges to be faced by future researchers in this area. 

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.

New type electron gun with electrostatic and electromagnetic lenses

1978 ◽  
Vol 36 (1) ◽  
pp. 62-63
Author(s):  
T. Ichinokawa ◽  
H. Maeda
Keyword(s):  
Electron Microscopy ◽  
Electron Beam ◽  
Optimum Condition ◽  
Bias Voltage ◽  
Electron Gun ◽  
Charge Effect ◽  
Micro Fabrication ◽  
Maximum Brightness ◽  
New Type ◽  
The Ideal

I. IntroductionThermionic electron gun with the Wehnelt grid is popularly used in the electron microscopy and electron beam micro-fabrication. It is well known that this gun could get the ideal brightness caluculated from the Lengumier and Richardson equations under the optimum condition. However, the design and ajustment to the optimum condition is not so easy. The gun has following properties with respect to the Wehnelt bias; (1) The maximum brightness is got only in the optimum bias. (2) In the larger bias than the optimum, the brightness decreases with increasing the bias voltage on account of the space charge effect. (3) In the smaller bias than the optimum, the brightness decreases with bias voltage on account of spreading of the cross over spot due to the aberrations of the electrostatic immersion lens.In the present experiment, a new type electron gun with the electrostatic and electromagnetic lens is designed, and its properties are examined experimentally.

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