CH3Br, 031209 1)PD summary status 2)Thresholds for direct excitations 3)CH3+ formation energetics / thresholds (direct and indirect)/ PD agust, heima,.....Dec09/CH3Br-Overall.

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CH3Br, )PD summary status 2)Thresholds for direct excitations 3)CH3+ formation energetics / thresholds (direct and indirect)/ PD agust, heima,.....Dec09/CH3Br-Overall +mass km ak.pxp agust,www,...Dec09/PPT ak.ppt

PD ready PD NOT ready

Br+(3) CH2Br+(3) CHBr+(5) CBr+ (5)(4) CH3+ (3) (2) CH2+ (4) (3) CH+ (5) (4) C+ (6) (5) (4) Thresholds for direct excitations / number of photons required: (n)

CH3+ formation energetics:

0 20K 40K 60K 80K 100K CH3 + Br ( cm-1 bond energy ak.ppt ) bond energy ak.ppt CH3Br CH3+ + Br- (76695 cm-1; t. Ridley, 2008) CH3+ + Br + e- ( cm-1; IE/ / 9.84eV: ) (2) (1) (3) (4) (2) (2) (3) (2) CH3+ formation energetics:

69302 Direct: CH3+ + Br + e- (3 = 2+1) Direct: CH3+ + Br- (2 = 2+0) Indirect via CH3 + Br (4 = 2+2) CH3+ formation energetics: (2.5)old (2.2)old ? CH3+