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The collisional quenching of electronically excited tin atoms Sn(5 1 D 2 ) by time‐resolved atomic absorption spectroscopy
Author(s) -
Brown A.,
Husain D.
Publication year - 1975
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550070109
Subject(s) - chemistry , tin , excited state , atomic physics , quenching (fluorescence) , spectroscopy , absorption (acoustics) , range (aeronautics) , ground state , absorption spectroscopy , analytical chemistry (journal) , fluorescence , physics , materials science , organic chemistry , quantum mechanics , chromatography , acoustics , composite material
Electronically excited tin atoms Sn(5 1 D 2 ), 1.068 eV above the 5 3 P 0 ground state, have been generated by the pulsed irradiation of tin tetramethyl and monitored photoelectrically in absorption by time‐resolved attenuation of atomic resonance radiation at λ=285.06 nm [Sn((5 d 3 F 2 0 ) ← (5 p 2 1 D 2 ))]. Deactivation rate constants are reported for the quenching of Sn(5 1 D 2 ) with a range of collision partners and the resulting data are compared with those for analogous states within group IV, namely, C(2 1 D 2 ) and Pb(6 1 D 2 ). The data are discussed in terms of correlations based on both the weak and strong spin orbit coupling approximations.