Tabl2.Structurau (hyiin)ad typical o-bond Sp3 sp2 sp C Hybridisation 125 160 三-H250 H Electronegativity N N 个H 140 N 180 N人 205 N=H269 0 0 "个H145 O个H 170 200 Ring size 161 134 129 个H125 176 150 145 H140 Average JcH is around 146 Hz,as is normally used in 13C-1H HSQC Average JCH is around 146 Hz, as is normally used in 13C- 1H HSQC