1. MwpntspeciesMwcalc 191H+1,00096 12245C+11,99225 13254CH+13,00969 14262CH2+13,94886 15271CH3+15,04454 24335C2+24,03066 25341C2H+24,9805 26347C2H2+25,94874 27354C2H3+27,10163 28359C2H4+27,94047 32382CFH+31,96376 33388CFH2+33,05781 34393CFH3+33,98358 ?443?43,9444 ?448?45,0108 ?453?46,08998 for wave7 Mw 1911 122453.4641 132543.60555 142623.74166 152713.87298 243354.89898 253415 263475.09902 273545.19615 283595.2915 323825.65685 333885.74456 343935.83095 pntSqrt(Mw) Analysis, 200707 : “agust, heima../HF/mass calibr-200707ak.ppt”

2. Coefficient values ± one standard deviation a = 28.432 ± 0.321 b = 62.538 ± 0.0686 Sqrt(Mw) pnt

3. Wave7 vs pnt; 200707 From “agust,heima.. /HF/fra Wang/ Pure HF 1 bar mass-190707.pxp”

4. MwpntspeciesMwcalc 191H+1,00096 12245C+11,99225 13254CH+13,00969 14262CH2+13,94886 15271CH3+15,04454 24335C2+24,03066 25341C2H+24,9805 26347C2H2+25,94874 27354C2H3+27,10163 28359C2H4+27,94047 32382CFH+31,96376 33388CFH2+33,05781 34393CFH3+33,98358 ?443C2FH+43,9444 ?448C2FH2+45,0108 ?453C2FH3+46,08998 for wave7 conclusion

5. pnt Wave7 vs pnt; 200707 From “agust,heima.. /HF/fra Wang/ Pure HF 1 bar mass-190707.pxp” Skimmer out Conclusion relevant to ion species observed: H+H+ C+C+ CH + CH 2 + CH 3 + C2+C2+ C2H+C2H+ C2H2+C2H2+ C2H3+C2H3+ C2H4+C2H4+ C2H5+C2H5+ CFH + CFH 2 + CFH 3 + 35 Cl + 37 Cl + H 37 Cl + H 35 Cl + C 2 FH + C 2 FH 2 + C 2 FH 3 + C 2 FH 4 +

6. Comments: Most probably the ion species (and the F containing species in particular) are formed via radical reactions, such as between F and oil (C x H y ), for example: F + C x H y ->->-> C 2,....CFH,... Followed by N hv + C 2,...CFH... ->-> C 2 +,...CFH+ F can not be formed by 2 hv excitation of the monomer in this region (see : e-mail 5.6.07 ( http://www.hi.is/~agust/rannsoknir/rempi/hf/REMPI%20signal.txt ) and http://www.hi.is/~agust/rannsoknir/rempi/hf/REMPI%20signal.txt http://www.hi.is/~agust/rannsoknir/rempi/hf/HF-pot-090307.ppt http://www.hi.is/~agust/rannsoknir/rempi/hf/HF-pot-090307.ppt and EJ calculations ( http://www.hi.is/~agust/rannsoknir/rempi/hf/EJ-080307.xls ) ) http://www.hi.is/~agust/rannsoknir/rempi/hf/EJ-080307.xls The ion signals increase as HF is diluted according to KM (e-mail 12.06.07 / agust,heima,.. / REMPI/HF/KM/Massspectra vs %HF-120607.pxp ) Hence probably F is formed after excitation of oligomers (dimer): (HF) n + 2hv -> (HF) n * followed by dissociation, such as: (HF) n * -> F +... (which is what Andras Bodes calculations suggest (http://www.hi.is/~agust/rannsoknir/rempi/hf/PES-011106.pdf )!http://www.hi.is/~agust/rannsoknir/rempi/hf/PES-011106.pdf -in which case these signals are measurements of (HF)n !!!!

7. Comments: Furthermore: the “HF)2” signal recorded in 2005 is in fact a mass near 24 – 26 (see e-mail from me to Wang and KM 190707) and could be C2 or C2H formed as: (HF)2 + 2 hv ->-> F or H F + C2H2 -> HF + C2H Followed by C2H + n hv ->-> C2H+ NB!: C2H2 had been used on the vacuum line before we did the HF experiments