Showing posts with label electrostatics. Show all posts
Showing posts with label electrostatics. Show all posts

Friday, 4 June 2021

A Recent Study on the Synthesis and DFT Collaborated Experimental Characterization of Some Pyrazolone Functionalized Dioxovanadium(V) Schiff Base Complexes | Chapter 4 | Current Perspectives on Chemical Sciences Vol. 10

 The goal of this paper is to synthesise and characterise dioxovanadium(V) complexes of semicarbazone ONO-donor ligands, LH [where LH = N-(4'-benzoylidene-3'-methyl-1'-phenyl-2'-pyrazolin-5'-one)-semicarbazone (bmphp-semH), N-(4'-butylidene-3'-methyl By oxidising bis(acetylacetonato) oxovanadium(IV) complexes of the above ligands with ambient oxygen (bubbling air) for 2-3 days, they were generated from ethanol-methanol mixed solvent (1/10) solutions of bis(acetylacetonato) oxovanadium(IV) complexes of the aforementioned ligands. Physiochemical analyses, such as percentages of different elements, magnetic susceptibility, conductance, FT-IR, UV-Visible, and mass spectrometry, were used to corroborate the composition and formulas of complexes. At the convergence of DFT and experimental formulation interface, one of the typical complexes, cis-[VO2(bmphp-sem)(H2O)], was examined. To approximate geometry optimization, charge distribution, and molecular orbital descriptions, typical B3LYP/LANL2DZ combinations were employed. Absolute electronegativity (Xabs) and absolute hardness (η) are two global reactivity parameters that have been used. Overall, the compounds had a cis-octahedral structure, according to the research.

Author (s) Details

R. C. Maurya
Coordination, Bioinorganic and Computational Chemistry Laboratory, Department of P. G. Studies and Research in Chemistry & Pharmacy, R. D. University, Jabalpur-482001, India.

J. M. Mir
Coordination, Bioinorganic and Computational Chemistry Laboratory, Department of P. G. Studies and Research in Chemistry & Pharmacy, R. D. University, Jabalpur-482001, India and Department of Chemistry, Islamic university of Science and Technology, Awantipora-192301, India.

P. K. Vishwakarma
Coordination, Bioinorganic and Computational Chemistry Laboratory, Department of P. G. Studies and Research in Chemistry & Pharmacy, R. D. University, Jabalpur-482001, India.

View Book :- https://stm.bookpi.org/CPCS-V10/article/view/1225

Tuesday, 11 August 2020

Two-Capacitor Electric Microgenerators | Chapter 1 | Emerging Trends in Engineering Research and Technology Vol. 8

 All modes of operation of a two-capacitor generator based on overflow of the charge accumulated in

capacitors through the load resistance between two capacitors with antiphase modulated
capacitances by means of in-plane or out-of-plane shift of the electrode plates under action of a
mechanical force are analyzed paying the especial attention to fabrication of the generators with small
sizes. Numerical solutions for all the modes are obtained, and they are found to be universal.
Analytical estimates of the maximum power of the generator as a function of the capacitances
modulation factor are derived. Experimental investigations of a two-capacitor rotational electric
generator show that its characteristics are consistent with the analysis performed and that this
analysis can be used to describe all specific features of operation of particular generators.
Applications of the devices in micro-design for feeding the remote sensors are discussed.


Author(s) Details

Igor L. Baginsky
Institute of Automation and Electrometry, Russian Academy of Sciences, Russia.

Prof. Edward G. Kostsov
Institute of Automation and Electrometry, Russian Academy of Sciences, Russia

Victor F. Kamishlov
Institute of Automation and Electrometry, Russian Academy of Sciences, Russia.

View Book :-
http://bp.bookpi.org/index.php/bpi/catalog/book/228