✦ LIBER ✦

The effect of electron correlation on one-electron properties in the 2 3S and 2 1S excited states of the helium atom

✍ Scribed by Jesus M. Ugalde; Russell J. Boyd

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 256 KB
Volume: 114
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(85)85086-7

No coin nor oath required. For personal study only.

✦ Synopsis

The density difference ED, defined as the difference between the exact and the Hertree-Fock radial density functions is reported for the 23S and the 2 'S exerted states of the helium atom. The density differences in both eeses resemble the inverse of the helium grow&state density drfference, but are more long-ranged due to the diffuseness of the excited states. The effect of electron correlation on one-electron distributions is also demonstrated by comparison of C~J expectation values and several indices oi the relative sizes of atoms. Electron correlation leads to a contraction of the Haruee-Fock electron clouds.

📜 SIMILAR VOLUMES

Electron-impact excitation of the 3s''3P

Electron-impact excitation of the 3s''3P° and 2s2p53P° autoionizing states of atomic oxygen

✍ E.C. Zipf; W.W. Kao 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 542 KB

The excitation of the ~s"~P' and 2s2ps3Po autoionizing states of 01 by electron impact on atomic oxygen has been studied. Absolute cross section values from threshold to 300 eV have been obtained for the ~s"~P' state. Limited emission cross section data for the 2s2p5 3P0 and other partially radiatin

The effect of electron correlation on th

The effect of electron correlation on the topological and atomic properties of the electron density distributions of molecules

✍ Russell J. Boyd; Liang-Chen Wang 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 780 KB

The topological properties of the electron density and the properties of a n atom in a molecule are calculated by means of second-order Mgller-Plesset perturbation theory (MP2) and compared with the results of configuration interaction calculations (CI2) which include all single and double substitut

Coherent Excitation and Relaxation of th

Coherent Excitation and Relaxation of the Coupled S1/S2 Electronic States of Naphthalene

✍ Raúl Montero; Dr. Álvaro Peralta Conde; Dr. Asier Longarte; Prof. Fernando Casta 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 335 KB 👁 1 views

This study was funded by Spanish MEC under the programs CTQ2009-06968 and Consolider SAUUL CSD2007-00013. The experiments were carried out at the SGIker laser facility of the UPV/ EHU.

On the assignment of the electronically

On the assignment of the electronically excited singlet states in linear CO2

✍ Peter J. Knowles; Pavel Rosmus; Hans-Joachim Werner 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 583 KB

High-accuracy electronic structure calculations for the energies of CO2 in the lowest states in each of 'Zi, 'I&, 'AU and 5; symmetries, as a function of the symmetric stretching coordinate, are reported. The relative positions of the electronically excited states have been determined to an expected

The cross section for production of the

The cross section for production of the 3s state of atomic hydrogen in dissociative excitation of H2 by electrons

✍ G.A. Khayrallah; S.J. Smith 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 404 KB

ScvcraI mcaurcments have been made by various authors on the relative contnbutmn to the Halmcra crntrsiun or the 35 state of hydrogen atolns rcsultlng frown the dlrsociatwe evcltation of El2 by electrons in the energy range 20 to 500 cV. Thcsc mcasurcmcnts, however, arc mutually Inconsistent c\cept

The (3s, 3d) 1Δg electronic state of Na2

✍ R.F. Barrow; C. Amiot; J. Vergès; J. d'Incan; C. Effantin; A. Bernard 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 253 KB

Ultraviolet lines of both krypton-ion and argon-ion lasers excite levels in the C(2)'& state of Nal. Following efftcient collisional transfer to ( 1)'4, the (O-O) sequence of the (I )'4-B( l)'lT. system appears strongly in the infrared around 7020 cm-'. High-resolution Fourier transform spectra hav