On the intermolecular potential in solid N2. II. Libronic frequencies
β Scribed by Myron J. Mandell
- Publisher
- Springer US
- Year
- 1975
- Tongue
- English
- Weight
- 338 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2291
No coin nor oath required. For personal study only.
β¦ Synopsis
The librational frequencies of solid el-nitrogen are calculated using an RPA formalism and a potential expressed as a multipolar expansion. As was previously suggested, inclusion of higher-than-quadrupolar terms in the hard-core potential is required for agreement with experiment. The relative values of the "nonelectric" quadrupole-quadrupole interactions determine the precise frequencies. The Gruneisen parameters -c~(ln og)/c~(ln V) can be explained by postulating a volume-independent hexadecapole-monopole potential. Such an assumption is partially justified by libron-phonon interactions, which are shown to play a significant role in determining the effective multipolar potentials.
π SIMILAR VOLUMES
The first measurement of the glory structure of the total integral cross section for the scattering of N2 against N2 is reported for the collision velocity range 500-3000 m s -l. A comparison is made between the measured structure and calculations carried out within the infinite-order sudden dynamic
Ternary copper(II) complexes having the general formula [Cu(bhs)(hc)], with a tridentate Schiff base, N-(benzoyl)-N 0 -(salicylidine)hydrazine (H 2 bhs) and monodentate N-heterocycles (hcZ3,5-dimethylpyrazole, pyrazole, imidazole, and pyridine), are described. The complexes were characterized by ele
Audio frequency dielectric constant measurements of CO and N in their solid phases are presented. Anomalous 2 temperature dependence of the dielectric constant in the a-phases of both CO and N and strong hysteresis effects above an 2 onset temperature T , 42 K in the b-phase of pure N have been obse