http://arxiv.org/abs/1503.05138
Electronic transitions of the title molecules were measured between 250 and 710 nm using a mass-resolved 1+1′ resonant two-photon ionization technique at a resolution of 0.1 nm. Calculations at the B3LYP/aug-cc-pVQZ level of theory support the analyses. Because of their spectral properties, SiC$_2$, linear Si$_2$C$_2$, Si$_3$C, and SiC$_6$H$_4$ are interesting target species for astronomical searches in the visible spectral region. Of special relevance is the Si–C$_2$–Si chain, which features a prominent band at 516.4 nm of a strong transition ($f=0.25$). This band and one from SiC$_6$H$_4$ at 445.3 nm were also investigated at higher resolution (0.002 nm).
M. Steglich and J. Maier
Wed, 18 Mar 15
15/59
Comments: 15 pages, 9 figures, 5 Tables