A Spherical Molecule with a Carbon-FreeIh-C80Topological Framework

2009 ◽  
Vol 48 (27) ◽  
pp. 5046-5049 ◽  
Author(s):  
Manfred Scheer ◽  
Andrea Schindler ◽  
Christian Gröger ◽  
Alexander V. Virovets ◽  
Eugenia V. Peresypkina
Keyword(s):  
Spherical Molecule

Pressure-induced absorption in nonpolar gases containing tetrahedral molecules

1976 ◽  
Vol 54 (5) ◽  
pp. 611-617 ◽  
Author(s):  
A. D. Buckingham ◽  
A. J. C. Ladd
Keyword(s):  
Dipole Moment ◽  
Field Gradient ◽  
Infrared Radiation ◽  
Far Infrared ◽  
Spectral Moment ◽  
Induced Absorption ◽  
Integrated Intensity ◽  
Tetrahedral Molecules ◽  
Spherical Molecule ◽  
Far Infrared Radiation

The theory of pressure-induced absorption of far infrared radiation by gases is extended to include the contribution of the dipole moment induced in a molecule by the field gradient due to its neighbours. This dipole is nonzero when the molecule lacks a centre of inversion, as in a tetrahedron. In the collision of two tetrahedra, the dipole induced in molecule 2 by the electric field of the octopole moment Ω1 of the partner leads to transitions in which ΔJ(1) = 0, ± 1, ±2, ±3, and ΔJ(2) = 0. The dipole induced by the field gradient of Ω1 leads to ΔJ(1) = 0, ±1, ±2, ±3, and ΔJ(2) = 0, ±1, ±2, ±3, and therefore gives a required increase in absorption at higher frequencies. The field-gradient contribution vanishes in a collision involving a tetrahedral and a spherical molecule. General expressions are given for the field-gradient contributions to the integrated intensity and to the −2 spectral moment.

scholarly journals Deformation of a Spherical Molecule

1995 ◽  
Vol 88 (2) ◽  
pp. 315-325
Author(s):  
M. Apostol
Keyword(s):  
Spherical Molecule

Comparison Between the Phase Transition of Physically Confined Cyclohexane and 1-Decanol inside Nano Porous Silica

2012 ◽  
Vol 1423 ◽  
Author(s):  
Hillary C. Bauer ◽  
Alexandrea D. Safiq ◽  
Jargalsaikhan Dulmaa ◽  
Amer S. Khraisat ◽  
Samuel Amanuel
Keyword(s):  
Phase Transition ◽  
Porous Silica ◽  
Size And Shape ◽  
The Difference ◽  
Spherical Molecule

ABSTRACTThe thickness of non-freezing interfacial 1-decanol molecules has been estimated to be 1.44 ± 0.07 nm. This is smaller than what is estimated for cyclohexane, 2.25 ± 0.14nm. Furthermore, these interfacial molecules have higher density than corresponding bulk cyclohexane and 1-decanol, respectively. However, the change in density of the interfacial molecules is more significant in the case of cyclohexane than 1-decanol. This suggests that the cyclohexane molecules near the walls of the pore are more tightly packed than 1-decanol molecules. Presumably, this is due to the difference in size and shape of the molecules. Cyclohexane, a more spherical molecule, can easily be packed in smaller pores than the longer 1-decanol.

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