In the exchange reaction between deuterium and hydride molecules, the consecutive single-step m~hanism is characterized by interactions only between the ith deutero-isomer and the (i f 1) and (i -1) isomers. Rate equations have been set up on this basis and their exact and unique solutions found. Th
Isotopic exchange of beryllium hydride with deuterium
β Scribed by J. F. Lakner
- Publisher
- American Institute of Chemical Engineers
- Year
- 1987
- Tongue
- English
- Weight
- 706 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0001-1541
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The rate of CHI disappearance in a shock-heated CHI: Dz: Ar = 9.70: 9.86: 80.44 mixture was monitored by coincidence absorption of the 2948 cm-I He-Ne laser line over the shockfront temperature range of 1900-2300K. Comparison with CHr pyrolysis results by means of computer simulations suggested that
## Abstract A fiveβstep synthesis of deuteriumβlabelled diclofenac starting from 2βphenyl[^2^H~5~] acetic acid is described. The synthesis prevents deuterium from scrambling during the reaction. It offers the labelled compound with over 99% isotopic enrichment. It also provides a possible alternati