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19
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-
85034723302
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-
Values of 0.79 Å for [formula omitted] 1.33 Å for [formula omitted] 1.34 Å for [formula omitted] and 1.19 Å for [formula omitted] were used. These values were taken from Phys. Sci. Res. Papers, No. 439, AFCRL-70-0727, by S. K. Dickinson, Jr., L. G. Hanscom Field, Bedford, MA, Dec. 1, 1970
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29
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-
85034726779
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-
For a bent [formula omitted] molecule of [formula omitted] symmetry, [formula omitted] where α is one-half of the [formula omitted] angle. However, because α is unknown, it was approximated as 90°, i.e., linear [formula omitted] Hence, the ratio [formula omitted] where the definitions of X and Y were permuted, as required
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30
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-
85034731366
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-
Raman spectra from pure polycrystallirie samples of [formula omitted] [formula omitted] and [formula omitted] were obtained here. For [formula omitted] three contours peaking near 43, 170, and [formula omitted] were observed, with shoulders at 150 and [formula omitted] (very intense). Four [formula omitted] peaks were seen near 145, 190, 210 and [formula omitted] For [formula omitted] peaks occur near 325, [formula omitted] 430, and [formula omitted] with a shoulder near [formula omitted] No Raman scattering was detected above [formula omitted] for [formula omitted] [formula omitted] for [formula omitted] and [formula omitted] for [formula omitted]
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32
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-
85034721277
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-
At [formula omitted] Fig. 7, the (a) intensity above the dashed line is 1.95 times the (b) intensity. Hence, at [formula omitted] [formula omitted] Fig. 8. Moreover, at [formula omitted] [formula omitted] see Fig. 7. Below [formula omitted] however [formula omitted] varies like ρ, i.e., from 0 to 3/4
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33
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85034722614
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-
Another model involves [formula omitted] or [formula omitted] vibrating in a cage formed by ten coordinated [formula omitted] ions. Here, [formula omitted] is just outside the acceptable range of 1.07–1.11, namely 1.12. For [formula omitted] vibrating against ten [formula omitted] the frequencies corresponding to [formula omitted] and [formula omitted] are [formula omitted] and [formula omitted] respectively
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35
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85034730811
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-
Distances used in trial structures were taken from Ref. 14; [formula omitted] [formula omitted] and [formula omitted] The [formula omitted] radius is [formula omitted] Ref. 17. The Pb-F distance was taken to be [formula omitted]
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36
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-
85034721970
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-
The linear array FBaFZrF would have an overall length, including the terminal [formula omitted] electron clouds, given by [formula omitted] see Ref. 33
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39
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-
36849138998
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-
J. Chem. Phys.
-
(1935)
, vol.3
, pp. 710
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-
Badger, R.M.1
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41
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85034731007
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-
Pure [formula omitted] does not normally form a glass, and its vapor pressure it so large that [formula omitted] would be lost unless melts with [formula omitted] were highly pressurized. A. Raman spectrum from molten [formula omitted] and melts with [formula omitted] may thus be difficult to obtain. However, [formula omitted] may not be an important species in ordinary fluorozirconate glasses
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43
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-
85034731133
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-
The broadening effects seen with temperature rise produce the sharp minimum surrounded by two maxima in the [formula omitted] region, both panels, Fig. 14
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-
44
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-
85034727007
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-
The factor of [formula omitted] is obtained from extrapolation of Figs. 2 or 3 of Ref. 22
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-
-
-
45
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-
85034724193
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-
The expansion coefficient [formula omitted] is roughly [formula omitted] between 45 and 295 °C, Ref. 22. Hence, between 25 and 230 °C the decrease in ρ is about 0.3%
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