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Study on 15N NMR of lithium sudan I complex |
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| Authors: | Qi-Wen Wang Chao-Huan Chen En-Yi Zhao Yao-Huan Chen Huai-Yu Sheng |
| Abstract: | The 15N chemical shift have been measured for α-15N-labelled phenylazo-2-naphthol and its lithium complex. The change of the 15N chemical shift on coordination of the azo nitrogen to lithium appears to be related to those of protonation of the same nitrogen. The chemical shifts of azo form and hydrazone form have been calculated according to the weighted δN and 1JNH of different fractions. It is concluded that there is a bond formation between Li and N atoms. |
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