MARCH
1958
361
OXYGEN-CONTAINING HETEROCYCLES
[CONTRIBUTION FROM TIIE CHEMICAL
LABORATORY OF IOWA STATE COLLEGE AND THE IAOSALAMOSSCIENTIFIC LABORATORY OF THE UNIVERSITY OF CALIFORNIA]
Some Oxygen-Containing Heterocycles as Liquid Scintillator Solutes I ~ E X I iGIL.\IAN, ~ EUGEXE A. \$"EIPERT, JOSEPH J. DIETRICH,
AND
F. NEWTON H A Y E S
Beceived August $3, 1967 Derivatives of dibenzofuran, dibenzo-p-dioxin, and xanthene have been screened as liquid scintillator solutes. The first of these appears to offer the most promise. The results suggest that methoxy derivatives increase the relative pulse height.
a W. H. Kirkpntrick and P. T. Parker, J. A m . Chem. SOC.,57, 1123 (3935). H. Gilnian and L. C. Cheney, J . Am. Chetn. S O C ,61, 3149 (1939). H. Gilman, J. Swiss, 11. E. Killiq, and F. A. Yoeman, J . Am. Chem. Soc., 66, 708 (1044). rl J. Swislowsky, Iowa State Coll. J . Sci., 14, 92 (1939). e S. ivakian, doctors1 dissertation, Iowa State College, Ames, Iowa, 1944. H. B. WiUis, Iowa State Coll. J. Scz., 18, 98 (1943). H. Gilman and J. J. Dietrich, J . Am. Chem. SOC.,79, 1439 (1957). See Experimental. ' R. G. ('Inrl,son nrd M. Clnmhrrg, J . A m . Chem. S o c , 5 2 , 2881 (IWOj~3 I
