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MassMS-IW-6973 4,4'-difluorobenzil C14H8F2O2 (Mass of molecular ion: 246)
Source Temperature: 140 °C Sample Temperature: 110 °C Direct, 75 eV
69.0 1.1 75.0 5.8 95.0 24.5 96.0 1.6 123.0 100.0 124.0 7.7 246.0 3.1
400 MHz in CDCl3
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1H NMR 399.65 MHz C14 H8 F2 O2 0.040 g : 0.5 ml CDCl3 4,4'-difluorobenzil 
Assign. Shift(ppm)
A 8.025 B 7.201
Hz ppm Int.3217.16 8.050 103 3214.36 8.043 670 3212.28 8.038 282 3209.11 8.030 718 3207.52 8.026 383 3207.03 8.025 378 3205.44 8.021 729 3202.27 8.013 287 3200.07 8.008 688 3197.27 8.001 95 2889.16 7.230 107 2886.35 7.223 695 2884.28 7.218 236 2880.86 7.209 165 2879.52 7.206 332 2878.05 7.202 1000 2876.10 7.197 309 2874.76 7.194 140 2871.22 7.185 239 2869.14 7.180 652 2866.33 7.173 86
in CDCl3
KBr disc
nujol mull
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