90 MHz in CDCl3
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1H NMR 89.56 MHz C14 H12 N2 0.040 g : 0.5 ml CDCl3 4,7-dimethyl-1,10-phenanthroline 
Assign. Shift(ppm)
A 9.004 B 7.905 C 7.385 D 2.710 J(A,C)=4.5HZ.
Hz ppm Int.808.75 9.031 233 804.25 8.981 247 708.00 7.906 586 664.13 7.416 141 663.31 7.407 153 659.63 7.366 140 658.88 7.357 147 656.44 7.330 27 243.06 2.714 914 242.31 2.706 1000
KBr disc
nujol mull
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