Abstract
The vapor phase ir spectrum of 1,4-difluorobenzene has been recorded on a Perkin–Elmer 521 spectrophotometer equipped with a 10 m variable path multiple reflection cell. The band contours have been critically studied and the PR separations of typical A-, B-, and C-type bands are reported along with the relative intensity of Q branch with respect to that of the whole band for a few typical A- and C-type contours. The observed values are compared with those computed from rotational constants using the existing semiempirical theory.
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References
1.
Ferguson
E. E.
Hudson
R. L.
Nielsen
J. R.
, and
Smith
D. C.
, J. Chem. Phys. 21 , 1457 (1953 ).
2.
Steele
D.
and
Whiffen
D. H.
, Trans. Faraday Soc. 56 , 8 (1960 ).
3.
Schmid
E. W.
Brandmuller
J.
, and
Nonnenmacher
G.
, Z. Elektrochem. 64 , 940 (1960 ).
4.
Sechkarev
A. V.
and
Timoshenko
S. A.
, Izv. Vysshikh Uchebn. Zavedenil Fiz . 10 , 68 (1967 ).
5.
Armand
H. D.
and
Jules
D.
, Compt. Rend. 234 , 512 (1952 ).
6.
Sponer
H.
, J. Chem. Phys. 22 , 234 (1954 ).
7.
Cooper
C. D.
, J. Chem. Phys. 22 , 503 (1954 ).
8.
Bist
H. D.
Brand
J. C. D.
, and
Williams
D. R.
, J. Mol. Spectrosc. 21 , 76 (1966 ); 24 , 402 (1967 ).
9.
Bist
H. D.
Sarin
V. N.
Ojha
A.
, and
Jain
Y. S.
, Spectrochim. Acta 26A , 841 (1970 ).
10.
Thakur
S. N.
, thesis , Banaras Hindu Univ. , 1967 .
11.
Sarin
V. N.
Bist
H. D.
, and
Khandelwal
D. P.
, Spectrochim. Acta , to be published.
12.
Sarin
V. N.
Rai
M. M.
Bist
H. D.
, and
Khandelwal
D. P.
, J. Chem. Phys. Lett. 6 , 473 (1970 ).
13.
Stoicheff
B. P.
, Can. J. Phys. 32 , 339 (1954 ).
14.
Nygaard
L.
Hansen
E. R.
Hansen
R. L.
Andersen
J. R.
, and
Soerensen
G. O.
, Spectrochim. Acta 23 , 2813 (1967 ).
15.
Gerhard
S. I.
and
Dennison
D. M.
, Phys. Rev. 43 , 197 (1933 ).