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Effect of reagent rotational energy on product-state distribution in the reaction Ca + HF → CaF + H

✍ Scribed by R. Altkorn; F.E. Bartoszek; J. Dehaven; G. Hancock; D.S. Perry; R.N. Zare

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
418 KB
Volume
98
Category
Article
ISSN
0009-2614

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✦ Synopsis

Dcparrrrwnr uf Cixrmistr> . Statr_ford Unil ersirj . Smnford. Calijornia 9J305. US.4 Kecrnsd 15 _aprrl 1963: in find1 form 31 May 19S3 The effect of reagent rotation on the product vibrstional state distribution is reported for the reaction Ca('S) + W(S lx+." = 1.J) -Cal'(S"+, u'.J') + II( An infrared optical parametric oscihtor selects HF(u = 1) in each of its first crght rotational levels. As re+zent rotational energ, is increased. neu product vibrational levels appear xxhose populations apperlr to be described by 3 statistI& dlstrrbution.

I _ Introduction

In this letter \e report preliminary results concerning the dynamics of the chemical reaction C&)+HF(S'X+,v= 1.X) 4 C.F(x ?,+ _ u'.J') + 11('S) -An optrcal parametric oscillator (OPO) prepares the 11F molecule in d selected rotational 1evel.J = O-7. of the u = 1 state. A visible dye laser probes the resulting CaF product to determine its nascent internal-state distribution from its fluorescence excitation spectrum. We find that reagent rotation is efficiently converted to product vibration_ For some time, tunable dye lasers have been used to examine product internal-energy distributions in reaction dynamics experiments [I]. The use of lasers * SASA trkning grant recipient, 180-82.

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