𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Vibrational lifetime measurements of matrix isolated molecules by an optical “double resonance” method

✍ Scribed by Louis J. Allamandola; Joseph W. Nibler

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
708 KB
Volume
28
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

Receivd 24 May 1474

An optical-optical "double-resonance" experiment has beendeveloped and successfully appticd to the tidy of vibrational lifetimes. This pulsed dual laser technique should be applicable to all species possess:kg resotvnbte aLlowed vibro;lic transitions and it permits the diiect,measureme3t.of vibrational lifetimes which, at presnl, may be u short as 20 ps. Application of this technique to the u" = 1 and u" = 2 states of matrix isolated Cg yields half lifes oE 0.2 and .i.2 ms, respectively, in,an argon m&x at 16K, and 0.3 and 1.3 ms in an N2 matrix at 14K. No significant tempera-'. ture variation of these rate constants haybeen found in the range 14 to 24K. This is the fust direct measurement of the vibratidnal iifetimc of a homonuclear diatomic molecule isolated in a matrix environment

📜 SIMILAR VOLUMES

Vibrational relaxation of matrix-isolate
Vibrational relaxation of matrix-isolated ammonia studied by infrared double resonance
✍ L. Abouaf-Margun; H. Dubost; F. Legay 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 325 KB

The infrved vibration transition ~2 of NH3 isolated in a nitrogen matrix at 8'K is excited by the R(L0) and R(12) lines of the OO?l-10'0 transition of a Q-switched CO2 laser. When the continuous wave CO\* laser, used as a probe, is at the s3me frequency as the pump, a short exponential decay of tran

Nuclear quadrupole quantum beat spectros
Nuclear quadrupole quantum beat spectroscopy in the electronic ground state of a polyatomic molecule by an IR-UV double resonance method
✍ Robert T. Carter; Th. Walther; H. Bitto; J.Robert Huber 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 399 KB

The feasibility of determining nuclear quadrupole hyperfine splittings in the ground electronic state of a polyatomic molecule using a double resonance quantum beat method has been demonstrated. Pyrimidine molecules were coherently excited into single rotational states of the So 201 ( 13a ~) vibrati