TY  - JOUR
AU  - Jacovella, U
AU  - Carrascosa, E
AU  - Buntine, JT
AU  - Ree, N
AU  - Mikkelsen, K
AU  - Jevric, M
AU  - Moth-Poulsen, K
AU  - Bieske, EJ
Y2  - 2020/11/27
Y1  - 2020/08/06
SN  - 1948-7185
UR  - http://hdl.handle.net/11343/252489
AB  - Molecular photoswitches based on the norbornadiene–quadricylane (NBD–QC) couple have been proposed as key elements of molecular solar thermal energy storage schemes. To characterize the intrinsic properties of such systems, reversible isomerization of a charge-tagged NBD–QC carboxylate couple is investigated in a tandem ion mobility mass spectrometer, using light to induce intramolecular [2 + 2] cycloaddition of NBD carboxylate to form the QC carboxylate and driving the back reaction with molecular collisions. The NBD carboxylate photoisomerization action spectrum recorded by monitoring the QC carboxylate photoisomer extends from 290 to 360 nm with a maximum at 315 nm, and in the longer wavelength region resembles the NBD carboxylate absorption spectrum recorded in solution. Key structural and photochemical properties of the NBD–QC carboxylate system, including the gas-phase absorption spectrum and the energy storage capacity, are determined through computational studies using density functional theory.
LA  - English
PB  - AMER CHEMICAL SOC
T1  - Photo- and Collision-Induced Isomerization of a Charge-Tagged Norbornadiene-Quadricyclane System
DO  - 10.1021/acs.jpclett.0c01198
IS  - Journal of Physical Chemistry Letters
VL  - 11
IS  - 15
SP  - 6045-6050
OP  - DP150101427
OP  - DP160100474
OP  - FT130101304
L1  - /bitstream/handle/11343/252489/acs.jpclett.0c01198.pdf?sequence=1&isAllowed=y
ER  -