Table 1
Mass signals in Fig. 2 that exhibit the common electronic band profile observed in Fig. 3.
| Main distribution(a) | Side mass signals | |||
|---|---|---|---|---|
| +14 u mass progression | Raw formula | −2u | −4u | −6u |
| 128 | C10H8 | |||
| 142 | C11H10 | |||
| 156 | C12H12 | |||
| 170 | C13H14 | 168 | ||
| 184 | C14H16 | 182 | ||
| 198 | C15H18 | 196 | ||
| 212 | C16H20 | 210 | ||
| 226 | C17H22 | 224 | ||
| 240 | C18H24 | 238 | 236 | |
| 254 | C19H26 | 252 | 250 | |
| 268 | C20H28 | 266 | 264 | |
| 282 | C21H30 | 280 | 278 | |
| 296 | C22H32 | 294 | 292 | |
| 310 | C23H34 | 308 | 306 | 304 |
| 324 | C24H36 | 322 | 320 | 318 |
| 338 | C25H38 | 336 | 334 | 332 |
| 352 | C26H40 | 350 | 348 | (b) |
| 366 | C27H42 | 364 | 362 | (b) |
Notes. “Raw formula” refers to our assignment. The (a) main mass distribution corresponds to red arrows in Fig. 2. The (b) masses 346 u and 360 u are not included in the mass list because of a too low signal-to-noise ratio on their REMPI spectrum.
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