Infrared bands of mass-selected carbon chains Cn (n = 8−12) and Cn− (n = 5−10, 12) in neon matrices Original Research Article

Infrared bands of carbin chains Cn (n = 8−12) and C− (n = 5−10, 12) have been observed in neon matrices in the 1600–2100 cm−1 region. The matrices were grown at 5 K by codepositing mass-selected carbon anions with excess of neon. The neutral carbon chains were obtained from the anions by photodetachment. The assignments of the infrared transitions are based on mass-selection, photobleaching behaviour, intensity correlation with the known electronic transitions, and available ab initio calculations.