Rotationally resolved laser spectroscopy of tetracene and its van der Waals complexes with inert gas atoms

1987 ◽  
Vol 87 (1) ◽  
pp. 182-190 ◽  
Author(s):  
W. M. van Herpen ◽  
W. Leo Meerts ◽  
A. Dymanus
Keyword(s):  
Laser Spectroscopy ◽  
Van Der Waals ◽  
Van Der Waals Complexes ◽  
Inert Gas

scholarly journals Rotationally Resolved Spectroscopy of Tetracene and its Van Der Waals Complexes With Inert Gas Atoms

1986 ◽  
Vol 6 (1) ◽  
pp. 37-46 ◽  
Author(s):  
W. M. van Herpen ◽  
W. Leo Meerts ◽  
A. Dymanus
Keyword(s):  
Electronic State ◽  
Molecular Beam ◽  
Van Der Waals ◽  
Dye Laser ◽  
Van Der Waals Complexes ◽  
Inert Gas ◽  
Single Frequency ◽  
Intersystem Crossing ◽  
Rotational Constants ◽  
Rovibronic Spectra

Rovibronic spectra of tetracene (C18H12) and its Van der Waals complexes with argon and krypton have been resolved by using a well collimated molecular beam in combination with a single frequency dye laser. The rotational constants of tetracene have been deduced in the S0 and S1 electronic state. The rovibronic spectra of the Van der Waals complexes show an enhanced intersystem crossing.

scholarly journals How accurate is the determination of equilibrium structures for van der Waals complexes? The dimer N2O⋯CO as an example

2021 ◽  
Vol 154 (19) ◽  
pp. 194302
Author(s):  
Jean Demaison ◽  
Natalja Vogt ◽  
Yan Jin ◽  
Rizalina Tama Saragi ◽  
Marcos Juanes ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Complexes ◽  
Equilibrium Structures

scholarly journals Consecutive Vibrational Redistribution and Predissociation Processes in s-Tetrazine–Argon Van Der Waals Complexes

1983 ◽  
Vol 2 (3-4) ◽  
pp. 125-135 ◽  
Author(s):  
J. J. F. Ramaekers ◽  
L. B. Krijnen ◽  
H. J. Lips ◽  
J. Langelaar ◽  
R. P. H. Rettschnick
Keyword(s):  
Decay Time ◽  
Van Der Waals ◽  
Stagnation Pressure ◽  
Van Der Waals Complexes ◽  
Supersonic Expansion ◽  
Vibrational Predissociation ◽  
Out Of Plane ◽  
Spectrally Resolved ◽  
Plane Mode

s-Tetrazine argon complexes T−Arn (n = 1, 2) are formed in a supersonic expansion of argon seeded with s-tetrazine. The expansion was conducted through a nozzle of 50 or 100 μm with an argon stagnation pressure between 1 and 1.5 bar. From spectrally resolved measurements it is clear that vibrational redistribution processes as well as vibrational predissociation processes take place after SVL excitation within the complex.From rise and decay time experiments it can be concluded, that after excitation of the 6a1 complex level, the above mentioned processes are consecutive and not parallel. It appears that the out of plane mode 16a couples with the Van der Waals stretching mode. The predissociation rate of the 16a2 complex is observed to be 2.3 × 109 s−1.

Sign in / Sign up

Export Citation Format

Share Document