90 MHz in DMSO-d6
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1H NMR 89.56 MHz C17 H16 N2 O2 0.039 g : 0.5 ml DMSO-d6 2,7-diacetamidofluorene 
Assign. Shift(ppm)
A 9.96 B 7.88 C 7.69 D 7.51 E 3.872 F 2.078 J(C,D)=8.3 HZ. J(B,D)=1.8 HZ.
Hz ppm Int.891.81 9.958 146 705.94 7.883 146 705.25 7.875 155 704.94 7.872 157 694.50 7.755 98 686.25 7.663 212 676.25 7.551 124 674.44 7.531 111 667.88 7.458 50 666.13 7.438 49 350.06 3.909 29 346.75 3.872 156 190.44 2.127 65 190.06 2.123 65 186.13 2.079 1000
in DMSO-d6
KBr disc
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