Chinese Journal of Magnetic Resonance ›› 1988, Vol. 5 ›› Issue (2): 185-192.
Previous Articles Next Articles
Peng Qinji1, Sun Xicheng2, Ren Guodu2
Received:
Revised:
Published:
Online:
Abstract: The 13C NMR spectra of the S-tetrazine derivatives were investigated by using chemical shift reagents (CSR), Pr(fod)3 and Eu(fod)3. The capability of complexation between the S-tetrazine and the CSR was related to the density of electrons on the ring. The chemical shift values of 163-171ppm were determined by induced chemical shifts (US). The mechanism of the induced shifts is discussed. Pseudo-contact effect is predominant for Pr(fod)3 but contact effect makes an important contribution to the US for Eu(fod)3.
Key words: S-tetrazine, contact mechanism, Pseudo-contact mechanism
Peng Qinji, Sun Xicheng, Ren Guodu. CARBON-13 NMR INVESTIGATION OF S-TETRAZINE DERIVATIVES BY USING CHEMICAL SHIFT REAGENTS[J]. Chinese Journal of Magnetic Resonance, 1988, 5(2): 185-192.
0 / / Recommend
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks
URL: http://magres.apm.ac.cn/EN/
http://magres.apm.ac.cn/EN/Y1988/V5/I2/185
