A semiconducting supramolecular Co(ii)-metallohydrogel: an efficient catalyst for single-pot aryl–S bond formation at room temperature

2019 ◽  
Vol 48 (46) ◽  
pp. 17388-17394 ◽  
Author(s):  
Subhendu Dhibar ◽  
Amiya Dey ◽  
Rajkumar Jana ◽  
Arpita Chatterjee ◽  
Gourab Kanti Das ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Room Temperature ◽  
Bond Formation ◽  
Schottky Barrier Diode ◽  
Efficient Catalyst

A monoethanolamine based Co(ii)-metallohydrogel can act as a Schottky barrier diode device and a catalyst for single-pot aryl–S bond formation at room temperature.

Impact of Stacking Fault on the I-V Characteristics of 4H-SiC Schottky Barrier Diode

2015 ◽  
Vol 821-823 ◽  
pp. 563-566
Author(s):  
Hyun Jin Jung ◽  
Seung Bok Yun ◽  
In Ho Kang ◽  
Jeong Hyun Moon ◽  
Won Jeong Kim ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Schottky Barrier ◽  
Room Temperature ◽  
Harmful Effect ◽  
Stacking Faults ◽  
Optical Microscope ◽  
Stacking Fault ◽  
Schottky Barrier Diode ◽  
The Other ◽  
Room Temperature Photoluminescence

The influence of stacking faults (SFs) and triangular defects (TDs) on the electrical properties of 4H-SiC Schottky barrier diode (SBD) were investigated. The SF types and locations were distinguished and mapped by using room-temperature photoluminescence (PL) and optical microscope. SBDs were fabricated including the location of SF’s and TD’s. The effects of the types of defects and its area portion in the fabricated SBDs were also investigated. Based on the present data, 3C-TD has more harmful effect rather than the other SFs. The fabricated SBDs including SFs showed that increase of area portion of SF’s also resulted increase of specific on resistance of SBDs.

4,4'-Bipyridine-based Ni(II)-metallogel for Fabricating the Electronic Device of Photo-responsive Schottky Barrier Diode

2021 ◽  
Author(s):  
Pubali Das ◽  
Santanu Majumdar ◽  
Arka Dey ◽  
Sourav Mandal ◽  
Atish Mondal ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Room Temperature ◽  
Electronic Device ◽  
Schottky Barrier Diode ◽  
Dimethyl Formamide ◽  
Ambient Conditions ◽  
Chloride Hexahydrate ◽  
Triethyl Amine

A functionally advanced Ni(II)-metallogel (Ni-D-TA) has been derived through the sonication of Nickel(II) chloride hexahydrate and 4,4'-Dipyridyl, and triethyl amine in N,N-dimethyl formamide solvent at room temperature under ambient conditions....

Recent Advances on C-Se Bond-forming Reactions at Low and Room Temperature

2020 ◽  
Vol 23 (28) ◽  
pp. 3206-3225 ◽  
Author(s):  
Amol D. Sonawane ◽  
Mamoru Koketsu
Keyword(s):  
Room Temperature ◽  
Bond Formation ◽  
Bond Forming ◽  
Material Chemistry ◽  
Recent Advances ◽  
Bond Forming Reactions ◽  
Bond Formation Reactions

: Over the last decades, many methods have been reported for the synthesis of selenium- heterocyclic scaffolds because of their interesting reactivities and applications in the medicinal as well as in the material chemistry. This review describes the recent numerous useful methodologies on C-Se bond formation reactions which were basically carried out at low and room temperature.

Preparation and Characterization of a Novel Room Temperature Dicationic Ionic Liquid and its Application in the Synthesis of Xanthenediones Under Solvent-Free Conditions

2018 ◽  
Vol 21 (8) ◽  
pp. 602-608 ◽  
Author(s):  
Zainab Ehsani-Nasab ◽  
Ali Ezabadi
Keyword(s):  
Ionic Liquid ◽  
Room Temperature ◽  
Reaction Times ◽  
Significant Loss ◽  
Solvent Free ◽  
Acidity Function ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
Hammett Acidity Function ◽  
Dicationic Ionic Liquid

Aim and Objective: In the present work, 1, 1’-sulfinyldiethylammonium bis (hydrogen sulfate) as a novel room temperature dicationic ionic liquid was synthesized and used as a catalyst for xanthenediones synthesis. Material and Method: The dicationic ionic liquid has been synthesized using ethylamine and thionyl chloride as precursors. Then, by the reaction of [(EtNH2)2SO]Cl2 with H2SO4, [(EtNH2)2SO][HSO4]2 was prepared and after that, it was characterized by FT-IR, 1H NMR, 13C NMR as well as Hammett acidity function. This dicationic ionic liquid was used as a catalyst for the synthesis of xanthenediones via condensation of structurally diverse aldehydes and dimedone under solvent-free conditions. The progress of the reaction was monitored by thin layer chromatography (ethyl acetate/n-hexane = 3/7). Results: An efficient solvent-free method for the synthesis of xanthenediones has been developed in the presence of [(EtNH2)2SO][HSO4]2 as a powerful catalyst with high to excellent yields, and short reaction times. Additionally, recycling studies have demonstrated that the dicationic ionic liquid can be readily recovered and reused at least four times without significant loss of its catalytic activity. Conclusion: This new dicationic ionic liquid can act as a highly efficient catalyst for xanthenediones synthesis under solvent-free conditions.

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