Structures and Other Properties of Polyynes and their Isomers: Theoretical and Experimental Results - Polyynes: Synthesis, Properties, and Applications - page 400

TABLE 17.42
Vibrational Frequencies of 12O1(s) and 12O2(s) (All This Work)

Molecule F2 F3 F5 F7 F13 F14

10O1(s) 3465 - - - 602 602

- [394]R - - - [92]R [92]R

10O2(s) - 2225 2019 1971 - -

- - [1347]R [3215]R [5954]R - -

TABLE 17.43
Selected Values of the UV Absorption Spectra of 12O1(s)

- - - - - - Reference

[102] a l max 225 235 246.5 259.5 273.5

- 4.51 4.69 4.49 5.38 5.47 -

[102] b l max 225.5 236 247.5 260.5 275

- 4.59 4.74 5.02 5.41 5.51 -

[134] b

l max - - 246.4 258.6 273.3

[2] d l max - 237 248 260 273

[2] a

l max - 237 248 260 273

[2] b l max - 237 248 260 273

a

In methanol.

b

In hexane.
c In n-pentane at 25 C.
d In acetonitrile.
Note: Italics: log

" .

presented in Table 17.42. Selected values for the UV absorption spectra are
listed in Table 17.43.

17.8.4 I SOMERS OF C 14 H 2 AND C 16 H 2

We restrict the report to 14O1(s) and 16O1(s). Tables 17.44 to 17.47 speak

for themselves.

17.9 ISOMERS OF C 9 H 2 ,C 11 H 2 ,C 13 H 2 , AND C 15 H 2

Almost nothing is known of these molecules. McCarthy et al. [135] have
determined rotational properties of the carbon ring-chain C 9 H 2. Fulara