number atom shift 1 P -11.496 2 P -10.473 21 N 156.753 22 N 166.140 23 C 70.109 24 C 97.961 25 C 104.817 26 C 84.520 27 C 65.968 28 C 73.593 29 C 73.769 30 C 67.720 31 C 69.746 32 C 81.209 33 C 167.237 34 C 150.167 35 C 159.604 36 C 144.950 37 C 103.609 38 H 7.506 39 H 9.276 40 H 5.309 41 H 3.515 42 H 0.962 43 H 2.354 44 H 0.922 45 H 9.630 46 H 7.233 47 H 5.544 48 H 5.598 49 H 6.786 50 H 6.050 51 H 5.491 52 H 5.607 53 H 4.924 54 H 5.822 55 H 5.291 56 H 5.680 57 H 5.170 58 H 8.349 59 H 6.825