WebDEPT-90 and DEPT-135 are different types of DEPT experiments and we won’t go over the mechanisms here but rather use this data as it is. The … WebDEPT 45 yields CH, CH 2 and CH 3 signals positive, DEPT 90 yields only CH signals and DEPT 135 yields CH and CH 3 positive while CH 2 is negative. The use of DEPT in 13 C assignment is described in connection with 13 C NMR. Fig. 1 shows the APT spectrum of ethylbenzene. Fig. 1.

¹³C NMR DEPT 135 DEPT 90 DEPT 45 Organic …

WebDEPTQ is similar to the DEPT experiment but it also allow us to detect non protonated carbons. Below, the different carbon signals observed on a DEPTQ and on a DEPT are … WebAll carbons are seen in the 13 C-NMR spectra, using DEPT-90 only CH's (3° carbons) and with DEPT-135, protonated carbons are observed, with CH and CH 3 ' positive and CH 2 's (2° carbons) negative. Each student can determine the alcohol assigned to them from a class list based on the 13 C and DEPT spectra. something taken by a waiter

DEPT NMR: Signals and Problem Solving - Chemistry Steps

http://nmrwiki.org/wiki/index.php?title=DEPT WebDEPT-90 可偵測到 三級碳的訊號 DEPT-135 可偵測到 一、三級碳的訊號為正 ，並偵測到二級碳的訊號為負。 相 位 碳峰之正負方向靠相位調整完成；向上為正，向下為負。 對於 DEPT 實驗，一般會將CH，CH3 調為正向，CH2調為負向。 DEPT實驗配合一般碳譜就可分辨出碳的級數。 製 圖 一般而言，會將13C與DEPT... WebDEPTQ is similar to the DEPT experiment but it also allow us to detect non protonated carbons. Below, the different carbon signals observed on a DEPTQ and on a DEPT are detailed. Blue and red indicate signal phase up or down respectively. DEPTQ 45o DEPT 45o C, CH, CH 2, CH 3 CH, CH 2, CH 3 DEPTQ 90o DEPT 90o C, CH CH DEPTQ 135o … something talk about