Quantum chemical calculations of gossypol and thymine reveal that the net electronic charge distributions along the boldfaced line of their structural formula ( Fig. 2) are just opposite in sign.

  • 量子化学计算棉酚与胸腺嘧啶分子中的净电荷分布,发现沿两者结构式粗线上各原子的电荷恰好符号相反(图2)。

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