Test of the H+2 + He interaction potential. Comparison of the interactions of He with H+, H+2 and H+3
β Scribed by L.A. Viehland; E.A. Mason; T.H. Stevens; L. Monchick
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 338 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Gaseous ion mobility data are used to test theorcticai potentials for H?j + He at large separation distances. Agreement with ab initio calculations is good, but significant discrepancy with recent dhtomics-m-molecules calculations is found. Mobility data are also used to calculate the spherically-averaged Hz + He potential, which is compared with H; + He and an ab initio H*+ He calculation.
π SIMILAR VOLUMES
The integral total collision cross section for tie H 2 has been measured with an absolute accuracy of -+ 1% to -+4% between 0.14 meV and 2.9 eV. The data have been fitted by a spherical symmetric multiparameter Morse-splinedispersion potential, which agrees well with results of ab initio calculation
The energy of He/H2 in its pound state is calculated in an abminitio way using the IEPA PNO method for three different H-H distances, three different angles and for distances between He and the midpoint of H2 racging from 3 to 2000. A van der Waals minimum of ==21"K is found for the linear arrangem
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