number atom shift 1 P -11.455 2 P -10.478 21 N 156.765 22 N 166.146 23 C 74.143 24 C 103.011 25 C 110.130 26 C 89.105 27 C 69.865 28 C 77.770 29 C 77.951 30 C 71.673 31 C 73.766 32 C 85.650 33 C 174.834 34 C 157.140 35 C 166.920 36 C 151.728 37 C 108.878 38 H 7.512 39 H 9.282 40 H 5.310 41 H 3.515 42 H 0.962 43 H 2.338 44 H 0.922 45 H 9.632 46 H 7.233 47 H 5.543 48 H 5.598 49 H 6.786 50 H 6.051 51 H 5.492 52 H 5.605 53 H 4.923 54 H 5.823 55 H 5.292 56 H 5.680 57 H 5.171 58 H 8.349 59 H 6.825