Mw pnt species Mwcalc

1 91 H+ 1,00096

12 245 C+ 11,99225

13 254 CH+ 13,00969

14 262 CH2+ 13,94886

15 271 CH3+ 15,04454

24 335 C2+ 24,03066

25 341 C2H+ 24,9805

26 347 C2H2+ 25,94874

27 354 C2H3+ 27,10163

28 359 C2H4+ 27,94047

32 382 CFH+ 31,96376

33 388 CFH2+ 33,05781

34 393 CFH3+ 33,98358

? 443 ? 43,9444

? 448 ? 45,0108

? 453 ? 46,08998

for wave7

Mw1 91 112 245 3.464113 254 3.6055514 262 3.7416615 271 3.8729824 335 4.8989825 341 526 347 5.0990227 354 5.1961528 359 5.291532 382 5.6568533 388 5.7445634 393 5.83095

pnt Sqrt(Mw)

Analysis, 200707 :

“agust, heima../HF/mass calibr-200707ak.ppt”

Coefficient values ± one standard deviation a = 28.432 ± 0.321 b = 62.538 ± 0.0686

350

300

250

200

150

100

54321

Sqrt(Mw)

pnt

25

20

15

10

x10

3

4003002001000

pnt

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

Mw pnt species Mwcalc

1 91 H+ 1,00096

12 245 C+ 11,99225

13 254 CH+ 13,00969

14 262 CH2+ 13,94886

15 271 CH3+ 15,04454

24 335 C2+ 24,03066

25 341 C2H+ 24,9805

26 347 C2H2+ 25,94874

27 354 C2H3+ 27,10163

28 359 C2H4+ 27,94047

32 382 CFH+ 31,96376

33 388 CFH2+ 33,05781

34 393 CFH3+ 33,98358

? 443 C2FH+ 43,9444

? 448 C2FH2+ 45,0108

? 453 C2FH3+ 46,08998

for wave7 conclusion

25

20

15

10

x10

3

4003002001000

pnt

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

Conclusion relevant to ion species observed:

H+

C+

CH+

CH2+

CH3+

C2+

C2H+

C2H2+

C2H3+

C2H4+

C2H5+

CFH+

CFH2+

CFH3+

35Cl+

37Cl+H37Cl+H35Cl+

C2FH+

C2FH2+

C2FH3+

C2FH4+

Comments:

Most probably the ion species (and the F containing species in particular) are formed via radicalreactions, such as between F and oil (CxHy), for example:

F + CxHy ->->-> C2,. ...CFH,... Followed by N hv + C2,...CFH... ->-> C2+,...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/HF-pot-090307.ppt and EJ calculations (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 )!-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 e-mail from me to Wang and KM 190707)and could beC2 or C2H formed as:

(HF)2 + 2 hv ->-> F or HF + C2H2 -> HF + C2H

Followed by

C2H + n hv ->-> C2H+

NB!: C2H2 had been used on the vacuum line before we did the HF experiments