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13C13C spin coupling constants in phenanthrene derivatives |
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| Authors: | Stefan Berger Klaus Peter Zeller |
| Abstract: | The synthesis of six 1-X- (X = OH, OCH3, OCOCH3, CH3, CHO and CN) phenanthrene derivatives with a 13C label at C-1 is described. An analysis of the 13C13C spin coupling constants shows the importance of π-interaction for the coupling constant transmission. Small 13C13C spin coupling constants over 6 bonds are reported. |
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