给电子基团

除了与给电子基团（X）直接相连的键长因X的不同而有较大变化外，其余键长的变化均较小。

Except for the bonds including electron-donating groups ( X ), the other lengths change little .

本文在B3LYP/6-31++G（d，p）水平，通过改变给电子基团或吸电子基团来研究分子内电荷局域激发（LE）和分子内电荷转移（CT）顺序的变化。

The sequence change of charge local excited ( LE ) and charge transfer ( CT ) is investigated by substituted electron donor or acceptor at the B3LYP / 6-31 + + G ( d , p ) level .

探讨了给电子基团对电子吸收光谱的影响。

The effect of the electron-donating groups on the electronic spectrum was investigated .

考察了分子共轭链长、给电子基团对βμ的影响。

The influence of the molecular conjugated chain length and the electron - donating group on βμ was examined .

金属有机配位聚合物是通过含给电子基团的双齿或多齿有机配体（）一种或几种中心金属离子（）过配位键自组装而形成的。

Metal-Organic coordination polymer is formed by self-assembly through coordination bond between bidentate or multbentate organic ligand and central metal ion .

吲哚啉环上5位的取代基对螺恶嗪热消色过程也有影响。5位的给电子基团能稳定开环体，热消色速率降低，寿命延长。

It was also found that the electron-donating groups in the5-position of indoline moiety could stabilize the colored forms and then low the thermal decay date .

当其苯环上3位被拉电子基团取代后，其电子传输性能提高；而被给电子基团取代后，电子传输性能降低。

The third position of the benzene ring was substituted by the electron acceptor groups , the electronic transmission performance was enhanced , while it was substituted by the electron donor groups , the electronic transmission performance was reduced .

给、吸电子基团对吡嗪衍生物电子结构影响的DFT研究

DFT study on Electronic structures of pyrazine derivatives with donor and acceptor group

给/吸电子基团取代对PPV类电致发光聚合物光电特性的影响

Influence of Donor / Acceptor Substitutions on the Properties of Photo-electricity in PPV-like Electroluminescent Polymers