MwpntspeciesMwcalc 191H+1, C+11, CH+13, CH2+13, CH3+15, C2+24, C2H+24, C2H2+25, C2H3+27, C2H4+27, CFH+31, CFH2+33, CFH3+33,98358 ?443?43,9444 ?448?45,0108 ?453?46,08998 for wave7 Mw pntSqrt(Mw) Analysis, : “agust, heima../HF/mass calibr ak.ppt”

Coefficient values ± one standard deviation a = ± b = ± Sqrt(Mw) pnt

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

MwpntspeciesMwcalc 191H+1, C+11, CH+13, CH2+13, CH3+15, C2+24, C2H+24, C2H2+25, C2H3+27, C2H4+27, CFH+31, CFH2+33, CFH3+33,98358 ?443C2FH+43,9444 ?448C2FH2+45,0108 ?453C2FH3+46,08998 for wave7 conclusion

pnt Wave7 vs pnt; From “agust,heima.. /HF/fra Wang/ Pure HF 1 bar mass 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 Cl + 37 Cl + H 37 Cl + H 35 Cl + C 2 FH + C 2 FH 2 + C 2 FH 3 + C 2 FH 4 +

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 : ( ) and and EJ calculations ( ) ) The ion signals increase as HF is diluted according to KM ( / agust,heima,.. / REMPI/HF/KM/Massspectra vs %HF 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 ( )! -in which case these signals are measurements of (HF)n !!!!

Comments: Furthermore: the “HF)2” signal recorded in 2005 is in fact a mass near 24 – 26 (see from me to Wang and KM ) 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