Ballistic Energy Transport via Long Alkyl Chains: A New Initiation Mechanism.

ABSTRACT: In an effort to increase the speed and efficiency of ballistic energy transport via oligomeric chains, we performed measurements of the transport in compounds featuring long alkyl chains of up to 37 methylene units. Compounds of the N₃-(CH₂)_n-COOMe type (denoted as aznME) were synthesized with n = 5, 10, 15, 19, 28, 37 and studied using relaxation-assisted two-dimensional infrared spectroscopy. The speed of the ballistic transport, initiated by the N₃ tag excitation, increased ca. 3-fold for the longer chains (n = 19-37) compared to the shorter chains, from 14.7 to 48 Å/ps, in line with an earlier prediction (Nawagamuwage et al. 2021, J. Phys. Chem. B, 125, 7546). Modeling, based on solving numerically th

SUBMITTER: Nawagamuwage SU 

PROVIDER: S-EPMC11403685 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature