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MassMS-IW-8224 1,4-dibromo-1,1,2,2-tetrafluorobutane C4H4Br2F4 (Mass of molecular ion: 286)
Source Temperature: 220 °C Sample Temperature: 150 °C Reservoir, 75 eV
26.0 2.5 27.0 19.0 28.0 2.7 31.0 4.8 33.0 1.5 39.0 2.2 45.0 1.1 47.0 5.7 50.0 1.6 51.0 13.2 56.0 1.2 57.0 4.2 59.0 1.7 64.0 3.2 65.0 22.5 69.0 4.8 75.0 3.7 77.0 64.1 78.0 3.2 79.0 1.3 81.0 1.2 93.0 20.0 95.0 19.8 100.0 8.2 106.0 2.3 107.0 9.7 108.0 14.1 109.0 8.5 111.0 3.6 113.0 3.6 125.0 1.1 127.0 92.0 128.0 4.0 129.0 16.6 131.0 16.1 137.0 1.7 139.0 1.4 155.0 1.9 157.0 18.6 159.0 16.3 160.0 1.9 162.0 1.4 179.0 1.5 181.0 1.5 187.0 10.3 189.0 10.0 207.0 100.0 208.0 4.5 209.0 97.5 210.0 4.3 286.0 7.5 288.0 14.6 290.0 7.2
400 MHz in CDCl3
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1H NMR 399.65 MHz C4 H4 Br2 F4 0.05 ml : 0.5 ml CDCl3 1,4-dibromo-1,1,2,2-tetrafluorobutane 
Assign. Shift(ppm)
A 3.506 B 2.707
Hz ppm Int.1409.91 3.528 868 1407.59 3.523 147 1401.86 3.508 867 1400.39 3.505 576 1395.63 3.493 175 1393.55 3.487 1000 1108.15 2.773 106 1106.93 2.770 191 1105.83 2.767 117 1101.32 2.756 69 1100.10 2.753 154 1098.88 2.750 203 1097.66 2.747 167 1096.44 2.744 78 1090.58 2.729 358 1089.72 2.727 357 1086.30 2.719 58 1083.37 2.711 236 1082.28 2.709 347 1081.67 2.707 355 1077.39 2.696 59 1073.97 2.688 349 1073.00 2.685 386 1069.70 2.677 46 1067.26 2.671 78 1066.16 2.668 166 1064.94 2.665 215 1063.60 2.662 173 1062.50 2.659 78 1060.06 2.653 33 1058.84 2.650 47 1057.74 2.647 113 1056.64 2.644 181 1055.42 2.641 104
in CDCl3
liquid film
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