number atom shift 1 C 129.501 2 C 150.465 3 C 142.296 4 C 142.333 5 C 156.889 6 C 136.892 7 C 71.065 8 C 67.385 9 C 135.954 10 C 118.540 11 C 155.013 12 C 148.881 13 C 79.346 14 C 86.927 15 C 74.284 16 C 68.555 17 C 76.187 18 C 73.563 19 C 89.507 20 C 97.229 21 C 161.053 22 N 84.496 23 N 107.211 24 N 263.107 25 N 251.026 26 N 270.852 27 N 177.786 28 N 215.207 43 P -5.132 44 P -6.649 45 H 9.537 46 H 10.170 47 H 10.595 48 H 10.690 49 H 10.352 50 H 8.163 51 H 5.927 52 H 5.539 53 H 5.685 54 H 5.662 55 H 5.669 56 H 5.218 57 H 4.593 58 H 4.986 59 H 4.718 60 H 4.859 61 H 7.720 62 H 6.079 63 H 5.471 64 H 5.847 65 H 5.875 66 H 7.399 67 H 1.187 68 H 0.952 69 H 3.215 70 H 4.058 71 H 4.944 72 H 4.947