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Raman Effect Some Organic and Inorganic Substances · 2017-01-04 · Raman Effect in Some Organic...
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Raman Effect in Some Organic and Inorganic Substances
Research Scholars, Department of Physics, Dacca Unigeraity .
(Plates 11 and 111).
(Beceived for p~iblication, 11th April , 1930.)
The paper describes tho results of a ~tudy of the Raman qeet rs of several o r p i c and inorganic substance^, nsmelg nree, ethyl formate, ethyl malooah, ethyl acetoacetate, ethyl monochloroacetata, ethyl carbonate, pobesium and ammonium tbiocyanates, phony1 isotbiocyanatq potassium cyanide, potassium cyanate, double cyanide of silver and potassium, methyl cyanide, aniline, phenyI hydnrzine, hydrazine by drab, benzaldehyde and formaldehyde,
Aniline and phenyl hydrazine darken in air under the action of light, thus rendering tbtl study of the mitaring of light in them extremely diEcnlb. The difficulty has been succ~~sfully overcome by distilling tbese liquids into the observation tube in vacuo. Under these conditions, the liquids do not develop coloas and tba Kaman line# come out strongly, unaccompanied by s continuous speotrum, Other Iiquids, e.g., benzal- dehgdg give a cootinuous spectrum even in the absence of air.
T be cyanides give two Ramm ffrqurncies of nbout 836 and 2080 which Ere presumably characteristic of the cynnogen ion, It i~ remarkable that
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