Electronic energy transfer from nitrogen molecules to metal atoms. Final report, 1 September 1978-31 August 1980

Technical Report · Sun Nov 30 00:00:00 EST 1980

OSTI ID:5756228

Rosenwaks, S; Nadler, I

The results of this research show that electronic excitation of metal atoms by N2(A) molecules is easily obtained in the metals studied. Moreover, EET is a fast and preferential process resulting in population inversion between some of the Cu states. Evidence is presented for the possible importance of the Franck-Condon principle in the collisional quenching of N2(A) by Cu. The similarity of the population distribution of the Cu states in the N2(A) + Cu and in the NF3 + Cu systems corroborates the suggestion that in the latter case the inverted population in copper originates from chemically produced N2(A). LIF studies of N2(B,v) have demonstrated a multiexponential decay which is interpreted as a fast collisional coupling of N2(B,v) to adjacent energy levels and a slower overall decay of these coupled levels. Our results may have bearing on existing interpretations of N2(B) chemistry. The 2N2(A) energy pooling rate constant could be estimated more accurately once the N2(B,v) quenching rate constant are found (13). This accuracy is needed since the energy pooling reaction is a competitive reaction to EET from N2(A). The information presented on the N2 Herman infrared system due to energy pooling may help in the identification of the upper and lower states of this unassigned band.

• Research Organization: Ben-Gurion Univ. of the Negev, Beersheba (Israel). Dept. of Chemistry
• OSTI ID: 5756228
• Report Number(s): AD-A-096026/0
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COPPER
ATOM-MOLECULE COLLISIONS
NITROGEN
NITROGEN FLUORIDES
ENERGY LEVELS
ENERGY TRANSFER
EXCITATION
POPULATION INVERSION
ATOM COLLISIONS
COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
METALS
MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NONMETALS
TRANSITION ELEMENTS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena