Accession Number : ADA290294

Title :   Radiative Lifetime and Quenching Rate Constants of PF(b(1) Sigma+) and Tests for an Electronic to Vibrational Energy Transfer Quenching Mechanism.

Descriptive Note : Final rept. 15 May 92-14 Aug 94,

Corporate Author : KANSAS STATE UNIV MANHATTAN

Personal Author(s) : Setser, D. W.

PDF Url : ADA290294

Report Date : 22 DEC 1994

Pagination or Media Count : 15

Abstract : Methods were developed to generate and isolate the PF(X(3)sigma, a(1)delta, b(1)sigma+, A(3)pi and d(1)pi) states in a flow reactor. Radiative lifetimes and total removal constants at 300 K have been measured. Except for halogens, the PF(b(1)sigma+) state is stable to chemical reaction. The other PF states seem to participate in chemical reactions at 300 K. Preliminary experiments were done with PCl(b(1)sigma+) and NCl(b(1)sigma+) to establish their radiative lifetimes. The reactions of excess H atoms with PF2Cl and PF2Br was explored as a chemical source for the generation of PF(a(1)delta) from the H + PF2 secondary reaction. (jg)

Descriptors :   *VIBRATION, *RATES, *ENERGY TRANSFER, *QUENCHING, *ELECTRONIC STATES, *CONSTANTS, SOURCES, RADIATION, STABILITY, REMOVAL, PHASE, GASES, TIME, FLUORINE, CHEMICAL REACTIONS, FLOW, SHORT WAVELENGTHS, CHLORINE, BROMINE, HALOGENS, REACTOR OPERATION.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE