Abstract
We report on gas phase UV action spectroscopy and photodynamics of [Ag3(1MT-H/1MU-H)2]+ comprised of a linear silver string and two deprotonated 1-methyl-thymine/uracil (1MT/1MU) ligands. We applied pump–probe femtosecond laser photofragmentation in an electrospray ion trap mass spectrometer and high-level ab initio calculations at the level of approximate coupled-cluster singles-doubles theory. The experimental UV band at 283/275nm is assigned to a red shifted 1ππ∗ nucleobase located transition. Relaxation of the 1ππ∗ state occurs with time constants of 0.2/1.1ps and 0.2/4.2ps for the 1MT and 1MU complexes, respectively, on a similar ultrafast time scale as non-metalated uracil derivatives.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call