問題詳情

24.下列何者不是透過關連性鍵結偶合為基礎的2D-NMR實驗?
(A)NOESY
(B)HMBC
(C)COSY
(D)TOCSY

參考答案

答案:A
難度:適中0.445363
統計:A(754),B(605),C(160),D(174),E(0)

用户評論

【用戶】anviis

【年級】高一下

【評論內容】NMR(一)氫譜(二)碳譜 DEPT(三)多維二維(2D-NMR)同核(透過關連性鍵結偶合為基礎)(1)COSY(2)TOCSY異核(透過關連性鍵結偶合為基礎)(1)HMQC(2)HMBC*記憶:有H的是相異立體化學(空間相關性)(1)NOESY(2)ROESY*記憶:有E的空間三維(3D-NMR)(1)NOESY-TOCSY(2)NOESY-NOESY★☆我94拒販售kerker☆★

【用戶】伊吉尼

【年級】高三下

【評論內容】補充相關考古題~15 下列何者能提供辨識碳級數的資料? (A)COSY (B)DEPT (C)HMBC (D)NOESY 編輯私有筆記及自訂標籤

【用戶】Ginkgo

【年級】國三上

【評論內容】關於COESY在網路上找到的資料,好像是某本書的引言吧,感覺上應該是和NOESY一樣的概念,探討空間上而不是鍵結間的偶合,可以用在大分子像是蛋白質的測定上,詳細可以點網站連結看After peak assignments are made, another type ofnspectrum, called an NOE (nuclear Overhauser effect) spectrum isnobtained (correlation and NOE spectroscopy are commonly called COESYnand NOESY). This NOE spectrum reveals couplings and couplingnconstants through space, rather than through bonds. In othernwords, in an NOE spectrum, nuclei exhibit coupling if they are nearneach other in space, even though they may be distant from each...