[en] The bibliography of research on vapour pressure isotope effects from 1919 to December 1975 is presented in chronological order. Within each year the references are listed alphabetically according to the name of the first author of each work. The bibliography is followed by a Compound Index containing the names o compounds, but the type of isotopic substituation is not shown. The Author Index includes all authors of the papers. (Sz.N.Z.)

[en] The first Bibliography on Vapour Pressure Isotope and covered the literature of the period from 1919 through December 1975. The present Supplement reviews the literature from January 1976 through December 1979. The bibliography is arranged in chronological order; within each year the references are listed alphabetically according to the name of the first author of each work. (author)

[en] Phenyl trifluoromethyl sulfone (FS-13) is a polar diluent, proposed in literature as an alternate to nitrobenzene, in UNEX/HCCD-PEG processes for better physical properties. Its PVT properties and accurate expression for estimation of its vapour pressure are not available in the literature. Recently PVT properties of FS-13 were estimated by authors and its vapour pressure was experimentally measured at temperatures ranging from 263.15 to 363.15 K. In this paper, results of these studies are presented. (author)

[en] Test calculations with numerous known vapor pressure equations have shown systematically oscillating deviations from the measured values, although the formulae contain a large number of coefficients. For this reason, a new vapor pressure equation with only five coefficients has been established, reproducing the measured values with the highest degree of accuracy possible, considering the experimental uncertainty of the best measurements. This very simple vapor pressure equation is more accurate than the tolerances of the International Skeleton Table values require. Therefore, a correction of the International Skeleton Tables, with respect to the vapor pressure of water and its tolerances, seems to be advisable

No abstract available

[en] New data for the logarithmic vapor-pressure ratio for water, In R.In[P(HOH)/P(DOD)], are presented at 57 temperatures and critically compared to extant data. Numerical analysis results in an equation valid from 283 to 363 K with an uncertainty of approximately 0.3% in In R; In R.44220/T/sup 2/-124.90/T+0.0684. Since in R itself varies between 0.2 and 0.06 in that range, and because P(HOH) is known to better than 0.01% over the bulk of the range, it follows that P(DOD) is established to approximately 0.03%, at least above 293 K, and not quite as well below 293 K. The new values that we recommend for In R lie significantly above currrently accepted values. 29 refs

[en] In general, multiphoton ionization (MPI) spectroscopy of metal complexes shows the dissociation and ionization of the compounds. Well-structured molecular ionization spectrum is not observed yet for metal complexes by use of the multiphoton ionization technique. Tungsten hexafluoride was selected to get a molecular spectrum with MPI technique because it had a very high dissociation energy that might suppress facile photofragmentation. Also, WF₆ has high vapor pressure(>1,000 torr at 300 K), which means heating is not required to get enough sample concentration in the molecular beam. The electronic absorption spectrum and the electron impact spectrum of WF₆ were previously studied. The assignment of WF₆ spectrum obtained by MPI can be compared with those published results. Experimentally, we observed the molecular MPI spectra of WF₆ and the clear assignments are not easy with current results as well as previous works.

No abstract available

No abstract available

[en] The high-temperature gas-phase doping of silicon with sulfur has been studied at various sulfur vapor pressures. It is shown that the content of one- and two-atom sulfur-related deep donors in the semiconductor can be quantitatively controlled by varying the diffusant vapor pressure