The article is concerned with the influence of resonance donor substituents RD on the dipole moments μ of molecules 1,4-RDC6H4RA containing resonance acceptor groups RA (CF3, CN, COCH3, NO2 or COH) and grouped in five reaction (indicator) series. Generally, the μ values depend on the inductive, resonance, and polarizability effects of the substituents RD. Strengthening of the resonance acceptor properties of the RA groups leads to weaker conjugation between the substituents RD and the π-system.

中文翻译：

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对二取代苯衍生物的极性：取代基效应的相关分析

该文章涉及共振供体取代基 RD 对含有共振受体基团 RA（CF3、CN、COCH3、NO2 或 COH）并分为五个反应（指示剂）系列的分子 1,4-RDC6H4RA 的偶极矩 μ 的影响。通常，μ 值取决于取代基 RD 的电感、共振和极化效应。增强 RA 基团的共振受体特性导致取代基 RD 和 π 系统之间的共轭减弱。