cover image: Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science  March 1953

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Indian Journal of Physics and Proceedings of the Indian Association for the Cultivation of Science March 1953

1953

The shifts of the bands with liquefaction and solidification however show that the molecules get strongly associated through virtual bond in this case also but probably the relative positions of the two substitution groups and the small value of the permanent electric moment in this case are responsible for the persistence of the angular oscillations of the molecules even at low temperatures. [...] The scattered light coining out through the window at one of the ends of the tube was focussed with a lens on to the slit of a F'uess spectrograph in such a way that an image of the rectangular aperture of the window was formed on the slit. [...] Intensities of the horizontal and vertical components were obtained from the densities of the lines with the help of blackening log-intensity curves drawn with the help of the densities of the known intensity marks. [...] The values of 8 the anisotropy of the molecule calculated from the formula 8 —5R7A'sp M(6-7p) given in the last columns of these tables s being the density of the liquid. [...] The large value of p in the case of the para compounds is evidently due to the large anisotropy of the molecule and the smaller value for the ortho compounds is therefore due to the decrease of anisotropy caused by formation of associated groups of molecules as pointed out by Rank (1951) because the anisotropy of the single ortho molecule can not be very much less than that of the para molecule.
technology medicine science
Pages
56
Published in
India
SARF Document ID
sarf.120085
Segment Pages Author Actions
Frontmatter
i-ii K. Banerjee, S.K. Mitra, D.M. Bose view
14 Absorption Spectra of Organic Substances the Liquid and Solid States. VI. Some Disubstituted Benzenes
119-125 H.N. Swamy view
15 An X-Ray Investigation on Tetraphenylethylene Crystal
126-128 M.N. Datta view
16 Temperature Dependence of Anisotropy of some Ortho and Para Disubstituted Benzenes
129-136 Monomohan Mazumder view
17 On the Large Load Characteristics of Vapour Pumps
137-144 S.K Mukherjee, P.K. Dutt view
18 Molecular Diameter of a Liquid
145-148 M.G. Bhatawdekar view
19 A Discussion on the Spectroscopic State of Tetravalent Carbon in the Halogen Substituted Derivatives of Methane as Revealed by Absorption Spectra
149-154 Prabhat Sen Gupta view
20 An Accurate Determination of the Torsion Constant of Quartz Fibres used in the Measurement of the Magnetic Anisotropy of Crystals
155-166 Sunil Datta view
Backmatter
i-ii unknown view

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