Double key bb set - from mr . boady 双键bb组键结构-鲍老师提供图片
But that picture of alternating single and double bonds is not the most accurate way of viewing any of these molecules 不过对这些分子来说,这种单双键交替的图像并不是最精确的。
First , the treatment with strong alkali to pvdf hollow - fiber membrane was carried out to create c = c bonds on the membrane surface 先对pvdf中空纤维膜进行碱处理,使基膜表面生成碳碳双键。
Lyase an enzyme that catalyzes the separation of two parts of a molecule with the formation of a double bond in one of them 裂解酶:一类能催化一个分子的两部分分离,并在其中一个上形成双键的酶。
Hydroformylation of the olefinic double bonds was n atom economic method th introduce new functional group in the oil compounds 而通过双键的氢甲酰化反应引入新官能团能为油脂的化工利用提供了一条广阔的道路。
Instead some of the double - bond electrons become delocalized , shared among several atoms rather than localized in a specific bond between two atoms 有些双键里的电子四处游移,由许多原子所共有,而非停留在两个原子间的特定一根键上。
There is alkenyl double bond in the molecular structure and can form linear homopolymer and all kinds of copolymers by various polymerization reaction 该分子结构中含有烯基双键,可以通过各种聚合反应,形成线性均聚物和各种共聚物。
A benzene ring can also be thought of as a short chain of six such carbon atoms , with alternating bonds , biting its tail to form a closed loop 苯环可以看成是由六个这种碳原子所组成的短链,它们的单双键交替,并且头尾相连形成一个封闭?圈。
In a covalent bond , two atoms share a pair of electrons , knitting together the respective electron orbitals . two electron pairs are shared in a double bond 在一个共价键中,两个原子共用一对紧密结合在各自电子轨道上的电子;在一个双键中,有两对电子共用。
The sulfonating reaction was found on the unsaturation bonds of polybutadiene basing on the research of dynamics of the sulfonating action and ftir analysis of reacted products 通过研究磺化反应的动力学和对磺化产物的分析测试,提出磺化发生在聚丁二烯的双键上新观点。