• No results found

Polarisation of the Lines in Raman Spectra.

N/A
N/A
Protected

Academic year: 2023

Share "Polarisation of the Lines in Raman Spectra."

Copied!
14
0
0

Loading.... (view fulltext now)

Full text

(1)

Polarisation of the Lines in Raman Spectra.

(Received

{or

publication,

26th

April,

1930.)

(Plate V.)

A systematic gtudy is made of the afste of polarisetion of the varioua Raman linen occurring in some simpIe mrnponnd~, vis., SO,, CS,, SO8,

N

H,, CBCI,, CHBr,, trichl~rides of phosphomas, araenio and bismuth and tho tetrachlorides of c a r h , dlicon, titanium and tin.

Cloa similarities are sboma to exist between the polarisation charsatem of the Ramsn spectra arising from compounds having d o g o u e atrnctnres, it is suggegted that the geometry of the various ogcil- Ilrtions ie one of the chief faotom which influence the pIarisation of a Raman line,

The

depolarbation factor generally mnges from 0 to 1, Contrary to thilr however, in the me of SO3, a Raman lips abiftd by 1403 wave numbers i~ found to have a depolarisation greater than unity. The signifimnw of this result i not clear, A high degme of polsriaatian for any Bsman line is generally gccompanied by relstively large intensity but the converse relatien is not true. Existing exphstions for tha polarbation phenomena in Reman spectra are briefly reviewed,

I , Introduction.

It hss been pointed

out

by Sir

C.

V. Rsman, in his first report of the discovery "hat some of the modified linea

Iod. Jar. Phya, VoI.9, p, 86'1 (1N8).

(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)

References

Related documents

SaLt MaRSheS The latest data indicates salt marshes may be unable to keep pace with sea-level rise and drown, transforming the coastal landscape and depriv- ing us of a

Although a refined source apportionment study is needed to quantify the contribution of each source to the pollution level, road transport stands out as a key source of PM 2.5

In a slightly advanced 2.04 mm stage although the gut remains tubular,.the yent has shifted anteriorly and opens below the 11th myomere (Kuthalingam, 1959). In leptocephali of

These gains in crop production are unprecedented which is why 5 million small farmers in India in 2008 elected to plant 7.6 million hectares of Bt cotton which

INDEPENDENT MONITORING BOARD | RECOMMENDED ACTION.. Rationale: Repeatedly, in field surveys, from front-line polio workers, and in meeting after meeting, it has become clear that

Angola Benin Burkina Faso Burundi Central African Republic Chad Comoros Democratic Republic of the Congo Djibouti Eritrea Ethiopia Gambia Guinea Guinea-Bissau Haiti Lesotho

The scan line algorithm which is based on the platform of calculating the coordinate of the line in the image and then finding the non background pixels in those lines and

Daystar Downloaded from www.worldscientific.com by INDIAN INSTITUTE OF ASTROPHYSICS BANGALORE on 02/02/21.. Re-use and distribution is strictly not permitted, except for Open