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HBr Energetics agust,www,....hbr/PPT-180112ak.ppt agust, heima,...HBr/XLS-180112ak.xls. http://www.sartep.com/chem/chartsandtools/bondenergy.cfm :. http://www.wiredchemist.com/chemistry/data/bond-energies-lengths Bond D (kJ/mol)r (pm)
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HBr Energetics agust,www,....hbr/PPT-180112ak.ppt agust, heima,...HBr/XLS-180112ak.xls
http://www.sartep.com/chem/chartsandtools/bondenergy.cfm : http://www.wiredchemist.com/chemistry/data/bond-energies-lengths BondD (kJ/mol)r (pm) H-Br 362 141 http://jcp.aip.org/resource/1/jcpsa6/v56/i6/p2713_s1?isAuthorized=no he bond dissociation energy of HBr (88 kcal∕mole) H & H: D00 = 3.758 eV = 30310.3028 cm-1
139978.77 H + + Br (n) = number of photons 130 k 125584.8 H + Br + Total scan range for HBr (3) cm-1 112849.6 H + + Br- HBr+ + e; 94205.51806 cm-1 H + Br**(4P;5s) 90 k 93736.45 86000 (2) 83723.2 Lowest energy Br** 74000 60 k 43000 (1) 41861.6 33985.24 cm-1 H + Br*(1/2) 37000 30 k 30300 cm-1 H + Br
NIST: HBr NIST: IE(Br) = 95 284.8cm-1 Br NIST:
Comments: • The threshold 83723.2 cm-1 amentioned in slide 4 could be the major reason for • The large I(Br+)/I(HBr+) ratio observed for: • E(v´=3), n0 = 84249.6 cm-1see: https://notendur.hi.is/jil3/work/HBr/E%20states%20for%20HBr.pdf • H(v´=2), n0 = 84042.1 cm-1see: https://notendur.hi.is/jil3/work/HBr/H%20states%20for%20HBr.pdf • What are the IR for V(m+14) and higher V levels like???? Are these perhaps • showing negligible HBr+ signals?! • I can not find REMPI spectra for this region. Where do I find processed REMPIspectra for n0 > 83000 cm-1? a: that energy corresponds to a threshold, - below which four photons are needed to form Br+ (i.e. (2r + 2i) REMPI) and - above which three photons are needed to form Br+ (i.e. (2r + 1i) REMPI
139978.77 H + + Br (n) = number of photons 130 k H + Br + 125584.8 Total scan range for HBr (3) H + + Br- cm-1 112849.6 HBr+ + e; 94205.51806 cm-1 H + Br**(4P;5s) 90 k 93736.45 86000 (2) 83723.2 Lowest energy Br** 74000 60 k 91599.56 95284.8 43000 (1) 41861.6 33985.24 cm-1 H + Br*(1/2) 37000 30 k 30300 cm-1 H + Br 3 photons are needed to ionize Br and Br* in the excitation region
Fig. 1 for HBr-FvsV-paper: