Probing the Size-Dependent Polarizability of Mesoscopic Ionic Clusters and Their Induced-Dipole Interactions

Author(s):  
Trung Dac Nguyen ◽  
Felipe Jimenez-Angeles ◽  
Monica Olvera de la Cruz
Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5839
Author(s):  
Cheng-Cheng Tsai ◽  
Yu-Wei Lu ◽  
Wei-Ping Hu

The fluorine-less noble gas containing anions OBONgO− and OCNNgO− have been studied by correlated electronic structure calculation and density functional theory. The obtained energetics indicates that for Ng=Kr and Xe, these anions should be kinetically stable at low temperature. The molecular structures and electron density distribution suggests that these anions are stabilized by ion-induced dipole interactions with charges concentrated on the electronegative OBO and OCN groups. The current study shows that in addition to the fluoride ion, polyatomic groups with strong electronic affinities can also form stable noble gas containing anions of the type Y−…NgO.


1961 ◽  
Vol 39 (3) ◽  
pp. 451-458 ◽  
Author(s):  
Robin M. Hochstrasser

The electronic absorption spectrum of crystalline perylene has been examined in the spectral region 3000–4700 Å. The lowest energy electronic state of perylene has a large oscillator strength and the crystal spectrum deviates considerably from that calculated from a weak coupling (Davydov) model.The sublimation flakes were examined at room temperature and at the temperature of boiling nitrogen. The lowest energy crystal state was polarized along the crystallographic a-axis (Bu) and the factor group splitting of lowest vibrational envelope of the electronic band was 800 cm−1. The whole spectrum was more intense along the a- than along the b-axis of the crystal. These results are consistent with the notion that the crystal spectrum is derived from dipole-induced dipole interactions between molecular B2u levels of perylene and neighboring unexcited molecules. This assignment of the lowest excited level of perylene is in agreement with theory.The molecular vibrational structure is severely altered in the crystal and the observed crystal shift is much smaller than that predicted by the Davydov theory.


1973 ◽  
Vol 51 (10) ◽  
pp. 1645-1654 ◽  
Author(s):  
A. S. Blair ◽  
A. G. Harrison

The ion–molecule reactions in mixtures of methane with the polar molecules dimethyl-d6 ether, ethylene-d4 oxide, acetaldehyde-d4, acetone, and acetonitrile have been studied using the trapped-ion technique. The CH5+ and C2H5+ ions produced by ion–molecule reactions in methane react rapidly (predominantly by proton transfer) with the polar molecules; the rate coefficients range from 1.98 × 10−9 cm3 molecule−1 s−1 (C2H5+ + C2D4O) to 5.26 × 10−9 cm3 molecule−1 s−1 (CH5+ + (CH3)2CO). The rate coefficients are much larger than those predicted from ion – induced dipole interactions only indicating that ion–dipole interactions play a large role in the collision process.Rate coefficients for reaction of CH3+ and CH4+ with the polar molecules also have been measured. Most of these also are larger than predicted from ion – induced dipole interactions indicating in this case as well substantial effects due to ion–dipole interactions.


1968 ◽  
Vol 46 (12) ◽  
pp. 2141-2146 ◽  
Author(s):  
Howard Pritchard ◽  
J. C. J. Thynne ◽  
A. G. Harrison

The following ion–molecules reactions have been found to occur in DCOOH for ions produced by bombardment with electrons of 10–15 eV energy (all rate constants in cm3 molecule−1 units).[Formula: see text]In methyl formate the following reactions have been identified and rate constants measured for ions formed by bombardment with electrons of 10–15 eV energy.[Formula: see text]Experiments using DCO2CH3 show that reaction [f] involves transfer of the methyl hydrogen at a rate 1.5 times that of the formyl hydrogen while reaction [g] involves transfer from only the methyl position of CH3OH+. The rate constants for all reactions are considerably higher than predicted on the basis of ion–induced dipole interactions only but are in good agreement with values calculated by including ion–dipole interactions.


Nano Letters ◽  
2010 ◽  
Vol 10 (6) ◽  
pp. 2275-2280 ◽  
Author(s):  
David A. Walker ◽  
Christopher E. Wilmer ◽  
Bartlomiej Kowalczyk ◽  
Kyle J. M. Bishop ◽  
Bartosz A. Grzybowski

2004 ◽  
Vol 18 (07) ◽  
pp. 961-974 ◽  
Author(s):  
G. KURIZKI ◽  
I. E. MAZETS ◽  
D. H. J. O'DELL ◽  
W. P. SCHLEICH

We present a brief review of our recent results concerning non-mean-field effects of laser-induced dipole–dipole interactions on static and dynamical properties of atomic Bose–Einstein condensates.


2015 ◽  
Vol 6 (11) ◽  
pp. 2070-2074 ◽  
Author(s):  
Satchin Soorkia ◽  
Christophe Dehon ◽  
Sunil Kumar S ◽  
Marie Pérot-Taillandier ◽  
Bruno Lucas ◽  
...  

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