Velocity-tunable beam of continuously decelerated polar molecules for cold ion-molecule reaction studies

2021 ◽  
Vol 92 (10) ◽  
pp. 103202
Author(s):  
James Greenberg ◽  
O. A. Krohn ◽  
Jason A. Bossert ◽  
Yomay Shyur ◽  
David Macaluso ◽  
...  
Keyword(s):  
Polar Molecules ◽  
Molecule Reaction

Moment of Inertia Influence on Ion-Molecule Reaction Rates

1989 ◽  
Vol 44 (1) ◽  
pp. 1-3
Author(s):  
R. Schuster ◽  
W. Stiller
Keyword(s):  
Experimental Data ◽  
Interaction Potential ◽  
Reaction Rates ◽  
Moment Of Inertia ◽  
Dipole Model ◽  
Rate Coefficients ◽  
Polar Molecules ◽  
Centrifugal Term ◽  
Molecule Reaction ◽  
The Moment

Abstract The locked-dipole model for reactions between ions and polar molecules is modified by introducing the moment of inertia into the centrifugal term of the interaction potential. The resulting rate coefficients are compared with other models and experimental data.

Dynamics of the F2+CH3SCH3 reaction: A molecule-molecule reaction without entrance barrier

2007 ◽  
Vol 127 (10) ◽  
pp. 101101 ◽  
Author(s):  
Yu-Ju Lu ◽  
Lance Lee ◽  
Jun-Wei Pan ◽  
Henryk A. Witek ◽  
Jim J. Lin
Keyword(s):  
Molecule Reaction

scholarly journals Universal relations for ultracold reactive molecules

2020 ◽  
Vol 6 (51) ◽  
pp. eabd4699
Author(s):  
Mingyuan He ◽  
Chenwei Lv ◽  
Hai-Qing Lin ◽  
Qi Zhou
Keyword(s):  
Critical Role ◽  
Interaction Strength ◽  
Quantum Correlations ◽  
Polar Molecules ◽  
Many Body ◽  
Density Correlation ◽  
Ultracold Polar Molecules ◽  
Unexplored Area ◽  
Many Body Systems

The realization of ultracold polar molecules in laboratories has pushed physics and chemistry to new realms. In particular, these polar molecules offer scientists unprecedented opportunities to explore chemical reactions in the ultracold regime where quantum effects become profound. However, a key question about how two-body losses depend on quantum correlations in interacting many-body systems remains open so far. Here, we present a number of universal relations that directly connect two-body losses to other physical observables, including the momentum distribution and density correlation functions. These relations, which are valid for arbitrary microscopic parameters, such as the particle number, the temperature, and the interaction strength, unfold the critical role of contacts, a fundamental quantity of dilute quantum systems, in determining the reaction rate of quantum reactive molecules in a many-body environment. Our work opens the door to an unexplored area intertwining quantum chemistry; atomic, molecular, and optical physics; and condensed matter physics.

scholarly journals Mechanism of the improvement of the energy of host–guest explosives by incorporation of small guest molecules: HNO3 and H2O2 promoted C–N bond cleavage of the ring of ICM-102

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yiwen Xiao ◽  
Lang Chen ◽  
Kun Yang ◽  
Deshen Geng ◽  
Jianying Lu ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Exothermic Reaction ◽  
High Energy ◽  
Ring Structure ◽  
High Energy Density ◽  
Initial Reaction ◽  
Heating Rates ◽  
Thermal Stabilities ◽  
Guest Molecules ◽  
Molecule Reaction

AbstractHost–guest materials exhibit great potential applications as an insensitive high-energy–density explosive and low characteristic signal solid propellant. To investigate the mechanism of the improvement of the energy of host–guest explosives by guest molecules, ReaxFF-lg reactive molecular dynamics simulations were performed to calculate the thermal decomposition reactions of the host–guest explosives systems ICM-102/HNO3, ICM-102/H2O2, and pure ICM-102 under different constant high temperatures and different heating rates. Incorporation of guest molecules significantly increased the energy level of the host–guest system. However, the initial reaction path of the ICM-102 molecule was not changed by the guest molecules. The guest molecules did not initially participate in the host molecule reaction. After a period of time, the H2O2 and HNO3 guest molecules promoted cleavage of the C–N bond of the ICM-102 ring. Stronger oxidation and higher oxygen content resulted in the guest molecules more obviously accelerating destruction of the ICM-102 ring structure. The guest molecules accelerated the initial endothermic reaction of ICM-102, but they played a more important role in the intermediate exothermic reaction stage: incorporation of guest molecules (HNO3 and H2O2) greatly improved the heat release and exothermic reaction rate. Although the energies of the host–guest systems were clearly improved by incorporation of guest molecules, the guest molecules had little effect on the thermal stabilities of the systems.

Symmetry of negative ions of polar molecules

1973 ◽  
Vol 26 (1) ◽  
pp. 139-143 ◽  
Author(s):  
Oakley H. Crawford
Keyword(s):  
Negative Ions ◽  
Polar Molecules

scholarly journals Atomic Rydberg Reservoirs for Polar Molecules

2012 ◽  
Vol 108 (19) ◽  
Author(s):  
B. Zhao ◽  
A. W. Glaetzle ◽  
G. Pupillo ◽  
P. Zoller
Keyword(s):  
Polar Molecules ◽  
Atomic Rydberg
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