Abstract
Laser Stark spectroscopy has been performed on C10H8 and C10D8 molecules in a collimated, seeded supersonic beam. The Stark splittings and shifts of many rotational lines in the 810 band of the A 1B3u←X 1Ag transition of naphthalene–H8 and –D8 could be measured in a static homogeneous electric field. The determined polarizability anisotropies of the A 1B3u state of C10H8 are P′aa−Pbb=9.9(2) Å3 and P′bb−Pcc=6.4(2) Å3, whereas the X 1Ag ground state results are P″aa−P″bb=6.2(2) Å3 and P″bb−P″cc=7.2(2) Å3. The change of the average polarizability between these states was determined to ΔP=P′−P″=1.6(1) Å3. The corresponding values of C10D8 were found to be P′aa−P′bb=10.1(2) Å3, P′bb−P′cc=6.2(2) Å3, P″aa−P″bb=6.1(2) Å3, P″bb−P″cc=7.3(2) Å3 and ΔP=P′−P″=1.6(1) Å3.
Sign-in/Register to access full text options 
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
