分子长度 meaning in Chinese
molecular length
Examples
- They are all centrosymmetry molecules . there exists three coordination modes for ligand l : chelating , monodentate , bridging . the length of each molecule is almost 4 run
空间群，中心对称结构，配体l有三种配位方式：螯合、桥连、单齿，分子长度将近4个纳米。 - The flocculating mechanism of mbf3 - 3 is absorption - bridging . mbf3 - 3 ' s - coo - increase its solubility and lengthen its available molecular length , thus intensify its absorption - bridging effect
Mbf3 - 3的絮凝机理为吸附架桥， ? coo ~ -的存在能增加其水溶性和在溶液中的有效分子长度，有助于增强吸附架桥作用。 - For push - pull compounds , many researches have indicate that , organic conjugated molecule tpa cross section relate to not only molecule length , center property , substitutions strength but also substitutions " symmetry , molecule dimension and so on
对于有中心链的推拉型分子，已有的研究结果表明：有机共轭分子双光子吸收截面的大小与硕士学位论文中文摘要分子长度、 。中心环分的特性、官能团的供吸电子能力以及官能团对称性、分子的维度等诸多因素有关。 - We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene , stilben , thiophene as center attached with amine , diphenylamine , diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length , n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level . it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors , and that a corresponding correlation for the two - photon absorption is decreasing . it is also found that a most crucial role for the two - photon absorption is played by the n center
我们分别以苯、二苯乙烯、噻吩为中心，氨基、二苯氨基和二乙氨基为电子给体，硝基为电子受体组合形成的分子为研究对象，在从头计算的水平上用密度泛函理论计算了这些分子在低激发态下的单、双光子吸收强度，重点研究了分子的长度、中心和给体的供电子能力对分子单、双光子吸收的影响。研究结果表明，分子长度与单光子吸收强度之间有密切关系，而在双光子吸收中这种关系较弱；中心在双光子吸收中具有重要的作用；在中心和受体一定的情况下，增加给体的供电子能力，可提高双光子吸收强度。