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MassMS-NW-5023 pyridazine C4H4N2 (Mass of molecular ion: 80)
Source Temperature: 250 °C Sample Temperature: 190 °C Reservoir, 75 eV
18.0 1.0 25.0 4.1 25.5 2.2 26.0 23.4 27.0 4.9 28.0 5.1 37.0 3.2 38.0 2.2 39.0 1.5 49.0 2.3 50.0 16.1 51.0 41.1 52.0 36.4 53.0 3.5 80.0 100.0 81.0 5.7
90 MHz in CDCl3
parameter in CD2Cl2
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1H NMR 89.56 MHz C4 H4 N2 0.02 ml : 0.5 ml CDCl3 pyridazine 
Assign. Shift(ppm)
A 7.509 B 9.213
Hz ppm Int.828.75 9.254 375 825.56 9.218 494 825.13 9.214 474 821.81 9.177 422 676.00 7.549 1000 672.81 7.513 815 672.19 7.506 875 670.25 7.484 45 669.00 7.470 926
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1H NMR 300 MHz C4 H4 N2 25 vol% in CD2Cl2 pyridazine Parameter ppm Hz
D(A) 9.19 D(B) 7.54 J(A,A') 1.39 J(A,B) 5.05 J(A,B') 1.88 J(A',B) 1.88 J(A',B') 5.05 J(B,B') 8.22 JACOBSEN,J.P. ET AL. J.MAGN.RESON. 10, 130 (1973)
Hz ppm Int.2766.89 9.223 15 2764.16 9.214 31 2760.48 9.202 796 2757.26 9.191 993 2756.78 9.189 985 2753.56 9.179 820 2749.86 9.166 32 2747.18 9.157 16 2271.84 7.573 16 2269.17 7.564 32 2265.46 7.552 820 2262.23 7.541 990 2261.75 7.539 1000 2258.53 7.528 798 2254.85 7.516 31 2252.13 7.507 15
in CDCl3
CCl4 solution
liquid film
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