1434 Inorganic Chemistry, Vol. 11, No. 6, 1972
NOTES
TABLE I EXPERIMENTAL INTENSITY RATIOS,J , AT 25" 10% g/ml
103c,
J
-MgAz*2H20 in CHIOH0 0.25 2.75 0.38 7.15 0.53 10.90 0.62 13.36 0.70 25,06 1.09 --MgA2 0 2.47 2.90
103c, J
g/ml
-Mg& 0 2.39 5.76 9.55 15.27 25.17 36.64
in CH&12-0.71 3.06 3.29
- 2 H 2 0in DMF0.38 0.41 0.45 0.50 0.58 0.12 0.88
--ColHs 0 53 I 1 2 58.87 68.94 80.20 94 I75
in DMF-
--Ni.42.2H20 in CHBOH 0 0.25 3.88 0.43 5.60 0.48 8.40 0.57 0.85 16.80
--NiAZ 0 3.80 7.60 11.40 15.82 24.07
in CCld--
by-product. The white, solid product was recrystallized several times from methanol. Pumping on the product in a vacuum oven a t 100" through a cold trap followed by gas chromatographic analysis of the condensate confirmed that it was hydrated rather than methylated. Anal. Calcd: HzO, 13.9. Found: HzO, 14.3. Magnesium Acetylacetonate, Mg(C:H,Oz)z.-The dihydrate was heated in VQCUO a t 100' for 12 hr. Anal. Calcd: Mg, 10.9; C, 54.0; H, 6.3. Found: Mg, 10.8; C, 5319; H, 6.4.
Results and Discussion The evaluation of the solvent parameters is summarized in Table 11; the results are given in Table 111. TABLE I1 SOLVENT PARAMETERS AT 25" CP Jn
Y
S,
I
cal/ml dega
10QDn/
ZIT
mol/ ml
Methanol 0.25 1.205b 0.4760' -3.90d 3 . 7 5 Methylene chloride 0.71 1.521e 0 . 3748e - 6.01 3.43 Carbon tetrachloride 0 , 7 4 1.440b 0.32438 - 5. 74d 2.95 Dimethylformamide 4 . 32h a Densities for converting to these units came from the reference in footnotef. E. B. Freyer, J . C. Hubbard, and D. H . Andrews, J . Amer. Chem. SOC.,51, 759 (1929). H . G. Carlson and E. F. Westrum, Jr., J . Chem.
