Directional preferences of nonbonded atomic contacts with divalent sulfur in terms of its orbital orientations. 2. Sulfur.cntdot..cntdot..cntdot.sulfur interactions and nonspherical shape of sulfur in crystals

1981 ◽  
Vol 103 (2) ◽  
pp. 477-479 ◽  
Author(s):  
T. N. Guru Row ◽  
R. Parthasarathy
Keyword(s):  
Nonspherical Shape ◽  
Divalent Sulfur

Aromaticity in heterocyclic molecules containing divalent sulfur

1988 ◽  
Vol 53 (9) ◽  
pp. 2023-2054 ◽  
Author(s):  
Milan Randić ◽  
Sonja Nikolić ◽  
Nenad Trinajstić
Keyword(s):  
Sulfur Atom ◽  
Positional Isomers ◽  
Heterocyclic Molecules ◽  
Resonance Energies ◽  
Conjugated Circuits ◽  
Divalent Sulfur

The conjugated circuits model is applied to heterocycles containing divalent sulfur. A novel parametrization is introduced for 4n + 2 and 4n conjugated circuits containing a single sulfur atom. The relative aromatic stabilities of a number of heterocyclic systems containing divalent sulfur are studied. Comparison is made whenever possible with earlier reported resonance energies of these compounds, obtained by using Huckel MO and SCF π-MO models, and appropriate reference structures. Special attention is given to positional isomers. An explanation of the differences amongst such isomers is given.

scholarly journals Динамика фотоиндуцированного вращения сферической частицы в постоянном электрическом поле

2019 ◽  
Vol 89 (1) ◽  
pp. 5
Author(s):  
А.И. Грачев
Keyword(s):  
Dipole Moment ◽  
Electric Field ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Dipole Moments ◽  
Constant Electric Field ◽  
Rotation Effect ◽  
General Terms ◽  
Nonspherical Shape ◽  
Rotation Dynamics

AbstractThe rotation of a spherical particle in a constant electric field (an effect found earlier) has been analyzed. The particle is illuminated to induce the electric dipole moment of the sphere. The dynamics of the rotation effect has been considered in general terms to refine conditions for adiabatic rotation. The features of the particle’s nonadiabatic rotation have been demonstrated with a sphere placed in a medium with an infinitesimal viscosity. It has been shown that the nonadiabatic rotation dynamics to a great extent depends on a relationship between the electrical and photoinduced dipole moments of the sphere. The rotation dynamics of a particle with a slightly nonspherical shape has been briefly analyzed.

scholarly journals Spherical Nanovesicles Transform into a Multitude of Nonspherical Shape

2020 ◽  
Vol 118 (3) ◽  
pp. 388a
Author(s):  
Rikhia Ghosh ◽  
Vahid Satarifard ◽  
Andrea Grafmüller ◽  
Reinhard Lipowsky
Keyword(s):  
Nonspherical Shape

ChemInform Abstract: MO THEORETICAL INVESTIGATIONS OF THE ELECTRONIC SPECTRA OF DIVALENT SULFUR COMPOUNDS

1975 ◽  
Vol 6 (15) ◽  
pp. no-no
Author(s):  
HIDEKI SAKAI ◽  
TOKIO YAMABE ◽  
HIROSHI KATO ◽  
SHINICHI NAGATA ◽  
KENICHI FUKUI
Keyword(s):  
Electronic Spectra ◽  
Sulfur Compounds ◽  
Theoretical Investigations ◽  
Divalent Sulfur

Hydrogenation of Compounds Containing Divalent Sulfur

1945 ◽  
Vol 67 (12) ◽  
pp. 2092-2095 ◽  
Author(s):  
Ralph Mozingo ◽  
Stanton A. Harris ◽  
Donald E. Wolf ◽  
Charles E. Hoffhine ◽  
Nelson R. Easton ◽  
...  
Keyword(s):  
Divalent Sulfur

Assessment of right ventricular diastolic suction in dogs with the use of wave intensity analysis

2006 ◽  
Vol 291 (6) ◽  
pp. H3114-H3121 ◽  
Author(s):  
Yichun Sun ◽  
Israel Belenkie ◽  
Jiun-Jr Wang ◽  
John V. Tyberg
Keyword(s):  
Right Atrial ◽  
Thin Wall ◽  
Intensity Analysis ◽  
Systolic Volume ◽  
End Systolic Volume ◽  
Pericardial Pressure ◽  
Valve Opening ◽  
Pulmonary Arterial ◽  
Nonspherical Shape ◽  
The Right

Diastolic suction (DS) can be defined as that property of the ventricle by means of which it tends to refill itself during early diastole, independent of any force from the atrium. Although thought to be significant in the left ventricle (LV), DS in the right ventricle (RV) has received little attention, probably because of RV geometry. Our recent LV studies have shown that DS is related to both decreased elastance (i.e., τ, the relaxation time constant) and end-systolic volume (VLVES), thus reconciling the two mechanisms that have been used to explain the concept of DS. We hypothesized that RV DS would similarly depend on τ and VRVES. In six anesthetized open-chest dogs, aortic, RV, right atrial (RA), pulmonary arterial (PA), and RV pericardial pressure, tricuspid velocity, and PA flow were measured. VRVES was calculated by measuring distances between eight ultrasonic crystals. An empirical index of relaxation, τ′, and VRVES were manipulated by volume loading/caval constriction and isoproterenol/esmolol. We calculated the total energy (IW−) of the backward expansion wave generated during RV relaxation and that component causing DS [IW−(DS)]; i.e., the energy remaining after tricuspid valve opening. IW− [IW−(DS) also] was found to be inversely related to τ′ and to VRVES {i.e., IW− = −8.85· e(−0.0423τ′)· e[−0.0665(%VRVES)]}. Thus, as for the LV, the energy of the backward-going wave generated by the RV during relaxation depends on both the rate at which elastance decreases and the completeness of ejection. Despite the thin wall and nonspherical shape of the RV, DS appears to be an important mechanism.

Conjugation of divalent sulfur with multiple bonds

1977 ◽  
Vol 27 (5) ◽  
pp. 1436-1440
Author(s):  
Yu. L. Frolov ◽  
L. M. Sinegovskaya ◽  
N. K. Gusarova ◽  
S. V. Amosova ◽  
B. A. Trofimov
Keyword(s):  
Multiple Bonds ◽  
Divalent Sulfur
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