- 更多网络例句与四氮卟吩相关的网络例句 [注:此内容来源于网络,仅供参考]
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The change for substitute group on chlorin ring of chlorophyll-a derivative and the effect on their visible spectra is discussed and summarized according to relation of electron effect and substituted position of different groups with conjugated region.
根据不同取代基的电子效应、取代位置与分子共轭区域的联系,提出二氮杂轮烯和四氮杂轮烯组成的非等原子芳香体系结构,总结了卟吩大环上的化学结构变化对其可见光谱的影响。