keto form
英
美 [ˈkeɪtoʊ fɔːrm]
网络 酮式
双语例句
- The compounds with bulky substituents on N-atom preferably exist in keto form on the same condition of determination.
当氮原子上带有体积较大的取代基时，在相同的条件下，化合物更容易以双酮式构型存在。 - The crystal structure analysis of photocolored product showed that the photochromic phenomenon was due to photoisomerization from enol form to keto form.
结构分析表明：其光致变色现象是由于它在溶剂与光的共同作用下发生了从醇式到酮式的异构化。 - The keto form predominates in many aldehydes and ketones, the enol form in phenols.
在许多醛和酮中酮基都是最主要的组分。 - The calculation of the thermodynamic parameters shows that the transfor-mation from enol to keto form is endothermic process.
热力学参数的计算表明，从烯醇式到双酮式构型的转变是一个吸热过程。 - The formation of the 1: 2-bridged hydrogen-bonded complexes makes the keto form lower more energy than the enol form.
1：2桥式氢键的形成使得酮式能量降低比烯醇式多。 - The photo product was determined to be the keto form.
确定了光致变色的产物为双质子转移的酮式结构。 - The results show that the energies of keto form decrease from the gas phase to solvents, and the dipole moments of keto form have become greater in solvents. The stability of PMBP-SAL grows with the increase of solvent polarity.
PMBP-SAL在几种溶剂中的能量较气相下降低，偶极矩增大，而且随着溶剂极性的增强，稳定性增强。 - It is an obvious feature that the detur groups always take place tautomerism in this process, such as in the excited state enol form transfers to keto form, and result in red-shift of the emission wavelength of molecules.
在此过程中给质子基团往往会发生互变异构现象，如烯醇在激发态时发生烯醇式向酮式转变的互变异构现象，导致分子发射波长向长波长显著移动，这是ESIPT的一个重要特征。