Ngày tải lên :
22/07/2014, 03:20
... Ph 13C-NMR: cỏc cacbon ca nhúm CH2 v trớ C2 v C22 cú dch chuyn húa hc = 101.08 ppm Cỏc cabon t cp ca v trớ C4, C24 cú = 147.99 ppm v v trớ C5, C20 cú = 147.13 ppm Nhúm CH ca cacbon C6 v C19 ... CH ca cỏc cacbon C3, C8, C9, C14, C17, C20, C23, C24 v C25 cú dch chuyn húa hc = 71.82, 31.93, 50.17, 56.79, 56.09, 36.16, 26.13, 45.87 v 29.19 ppm vựng = 140.78 ppm tng ng vi cacbon t cp ... 13C-NMR cho thy hp cht O-04 cú 29 cacbon, cú cha Trang 75 Science & Technology Development, Vol 11, No.07 - 2008 nhúm OH v >C=CH Kt qu ph 13C-NMR kt hp ph DEPT cho thy cú cacbon t cp, 11 nhúm CH2, nhúm...