All-metal σ-antiaromaticity in dimeric cluster anion {[CuGe9Mes]2}4−

2020 ◽  
Vol 56 (48) ◽  
pp. 6583-6586 ◽  
Author(s):  
Zi-Chuan Wang ◽  
Nikolay V. Tkachenko ◽  
Lei Qiao ◽  
Eduard Matito ◽  
Alvaro Muñoz-Castro ◽  
...  
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Cluster Anion

In this work, we firstly synthesized a solid-state compound {[CuGe9Mes]2}4− with a planar Cu2Ge2 fragment. By performing the thorough theoretical analysis, we showed that Cu2Ge2 diamond fragment possesses σ-antiaromatic properties.

Theoretical analysis of the solid-state terahertz spectrum of the high explosive RDX

2008 ◽  
Vol 463 (1-3) ◽  
pp. 84-89 ◽  
Author(s):  
Damian G. Allis ◽  
J. Axel Zeitler ◽  
Philip F. Taday ◽  
Timothy M. Korter
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
High Explosive ◽  
Terahertz Spectrum

scholarly journals From μ3- to μ- Agostic Methyl Coordination: NMR and Solid State Study of Donor Ligands Uptake by the Triangular Cluster Anion [Re3(μ-H)3(μ3-CH3)(CO)9]-

2021 ◽  
pp. 120641
Author(s):  
Daniela Maggioni ◽  
Donato Tunzi ◽  
Pasquale Illiano ◽  
Pierluigi Mercandelli ◽  
Angelo Sironi ◽  
...  
Keyword(s):  
Solid State ◽  
Cluster Anion ◽  
Donor Ligands ◽  
State Study

Analysis of the Vibration Characteristic for an Orbital Friction Vibration Actuator

2013 ◽  
Vol 416-417 ◽  
pp. 925-930 ◽  
Author(s):  
Yong Li ◽  
Fei Xu ◽  
Jian Hui Hu ◽  
Ji Bin Zou ◽  
Kai Liu
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Mathematical Analysis ◽  
Vibration Characteristic ◽  
Core Component ◽  
Friction Heat ◽  
Electromagnetic Structure ◽  
Welding Technology ◽  
Core Issue ◽  
Amplitude Amplification

Orbital Friction Vibration Actuator (OFVA) is a core component of Orbital Friction Welding (OFW), which is a novel apertureless welding technology utilizing friction heat to implement solid-state. By taking advantage of the special electromagnetic structure, OFVA can produce a contactless, radial, synchronous and rotating force with adjustable amplitude and phase upon the still mover which then vibrate according to the predetermined orbital. This paper analyzes the operational principle and structure of OFVA and conducts a mathematical analysis for a core issue about how to make the motion component of the OFVA generate circular moving trajectories. Vibration characteristic of are analyzed and the expressions of amplitude amplification factors as the moving component is moving in a circle are derived. Simulations are carried out to validate the theoretical analysis, which proved that the design was correct and engineering practical.

scholarly journals Research on Vacuum Arc Commutation Characteristics of a Natural-Commutate Hybrid DC Circuit Breaker

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4823
Author(s):  
Dequan Wang ◽  
Minfu Liao ◽  
Rufan Wang ◽  
Tenghui Li ◽  
Jun Qiu ◽  
...  
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Theoretical Foundation ◽  
Circuit Breaker ◽  
Vacuum Arc ◽  
Important Process ◽  
Mathematical Formula ◽  
Arc Voltage ◽  
Dc Circuit Breaker ◽  
Key Parameter

Vacuum arc commutation is an important process in natural-commutate hybrid direct current (DC) circuit breaker (NHCB) interruption, as the duration of vacuum arc commutation will directly affect the arcing time and interrupting time of NHCB. In this paper, the vacuum arc commutation model of NHCB was established by simplifying solid-state switch (SS) and vacuum arc voltage. Through theoretical analysis and experiments, the vacuum arc commutation characteristics of NHCB were studied. The mathematical formula of the effect of main parameters on the duration of vacuum arc commutation is obtained, and the changing law of the influence of the main parameters on the duration of the vacuum arc commutation is explored. The concept of vacuum arc commutation coefficient is proposed, and it is a key parameter that influences the vacuum arc commutation characteristics. The research on the characteristics of vacuum arc commutation can provide theoretical foundation for the structure and parameter optimization of NHCB and other equipment that uses vacuum arc commutation.

scholarly journals Mn2+ doped CdAl2O4 phosphors with new structure and special fluorescence properties: experimental and theoretical analysis

RSC Advances ◽  
2017 ◽  
Vol 7 (29) ◽  
pp. 17612-17619 ◽  
Author(s):  
Weiguang Ran ◽  
Lili Wang ◽  
Qingzhi Liu ◽  
Guangzeng Liu ◽  
Dan Qu ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Theoretical Analysis ◽  
Solid State Reaction ◽  
Fluorescence Properties ◽  
Luminescence Properties ◽  
Space Group

Mn2+-activated CdAl2O4 phosphors with the new structure of space group R3̄ (no. 148) have been prepared by a high-temperature solid-state reaction and their luminescence properties have been investigated in detail.

Solid-state IR–LD spectroscopic and theoretical analysis of glycine-containing peptides and their hydrochlorides

Biopolymers ◽  
2006 ◽  
Vol 82 (6) ◽  
pp. 587-596 ◽  
Author(s):  
Bojidarka B. Ivanova ◽  
Tsonko Kolev ◽  
Sonya Y. Zareva
Keyword(s):  
Solid State ◽  
Theoretical Analysis

Diverse structural assemblies of U-shaped hydrazinyl-sulfonamides: experimental and theoretical analysis of non-covalent interactions stabilizing solid state conformations

CrystEngComm ◽  
2019 ◽  
Vol 21 (11) ◽  
pp. 1780-1793 ◽  
Author(s):  
Hina Andleeb ◽  
Imtiaz Khan ◽  
Antonio Franconetti ◽  
Muhammad Nawaz Tahir ◽  
Jim Simpson ◽  
...  
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The preparation and structures of five new U-shaped hydrazinyl-sulfonamides are reported.

Theoretical analysis of ammoniaborane and alkylammoniaborane at the solid state

2017 ◽  
Author(s):  
Mariano Méndez Chávez
Keyword(s):  
Density Functional Theory ◽  
Solid State ◽  
Theoretical Analysis ◽  
Gas Phase ◽  
Density Functional ◽  
Structural Parameters ◽  
Ammonia Borane ◽  
Functional Theory ◽  
The Density Functional Theory

This work deals with a benchmark for the calculation of the structural parameters of ammonia-borane and alkylammonia-borane at the solid state, using hybrid and GGA functionals in the framework of the Density Functional Theory as well as the use of Grimme's empirical dispersion. A comparison for some dimers of the aforementioned species, calculated at the gas-phase at the level MP2/aug-cc-pVTZ is discussed.

PROPERTIES SYSTEMATIZATION FOR POLAR OXIDE CRYSTALS

2021 ◽  
pp. 83-91
Author(s):  
B. I. Kidyarov
Keyword(s):  
State Physics ◽  
Solid State ◽  
Theoretical Analysis ◽  
Nonlinear Optical ◽  
General View ◽  
Solid State Physics ◽  
Nlo Properties ◽  
Multicomponent Oxide ◽  
Polar Oxide ◽  
Oxide Crystals

The systematization of piezoelectic (PE), pyroelectric (PYE), electrooptic (EO), and nonlinear optical (NLO) properties has been carried out for the polar oxide crystals, used in functional electronics. The sharp extremal dependence has been found for the upper envelope of fuzzy sets for these properties taken in pairs. There is no any theoretical analysis of such dependencies in solid state physics up to now. It is shown nevertheless, that general view of such interrelationships is different in detail. The experimental points are near the upper envelope for the NLO-PE interrelationship, but there is still a lack of empirical data for EO-PE interrelationship. The highest acentric properties are observed in crystals of multicomponent oxide relaxors, partially studied only in the last 20 years.

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