当前位置: X-MOL 学术J. Phys. Org. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Predicting novel strong acids of plumbylene at theoretical levels
Journal of Physical Organic Chemistry ( IF 1.9 ) Pub Date : 2020-09-14 , DOI: 10.1002/poc.4139
Nazanin Mohebi 1 , Mohamad Z. Kassaee 1
Affiliation  

We have reached at new acyclic plumbylenes which show high acidity, via B3LYP, Def2‐TZVP, MP2, and wB97XD functionals. Our scrutinized plumbylenes include dicyclopropaplumbylene (1), dicyclopentaplumbylene (2), dicycloheptaplumbylene (3), and their unsaturated analogs (13, respectively). All scrutinized plumbylenes and their corresponding protonated forms, 1H(1H)‐3H(3H), appear as minima on their energy surfaces. The conductor‐like polarizable continuum model (CPCM) and integral equation formalism polarized continuum model (IEFPCM) are used to predict the pka values for electrophilic plumbylenes, 1(1)‐3(3), in chloroform and water. In most cases, plumbylenes turn out as strong acids for showing relatively high negative pka values. The acidity trend of plumbylenes (pka) appears consistent with their proton affinity (PA), electrophilicity (ω), nucleophilicity (N), Mulliken electronegativity ( urn:x-wiley:08943230:media:poc4139:poc4139-math-0001), absolute chemical hardness (ηabs), singlet‐triplet energy gap (ΔEs‐t), and highest occupied molecular orbital (HOMO)–lowest unoccupied molecular orbital (LUMO) energy gap (ΔEH‐L). Structure 1, with two cyclopropyl groups, turns out as the most acidic specie in chloroform and water.

中文翻译:

在理论水平上预测novel的新型强酸

我们已经通过B3LYP,Def2-TZVP,MP2和wB97XD功能获得了具有高酸性的新型无环亚苄基。我们的仔细审查plumbylenes包括dicyclopropaplumbylene(1),dicyclopentaplumbylene(2),dicycloheptaplumbylene(3),以及它们的不饱和的类似物(1 ' - 3 '分别)。所有审查plumbylenes及其相应的质子化形式,1 ħ1 ħ) - 3 ħ3 ħ),在其能量表面上显示为最小值。类似于导体的可极化连续体模型(CPCM)和积分方程形式主义极化连续体模型(IEFPCM)用于预测在氯仿和水中的亲电亚苄基11 ')- 33 ')的p k a值。在大多数情况下,亚苄基化合物成为强酸,显示出相对较高的负p k a值。plum的酸度趋势(p k a)与其质子亲和力(PA),亲电性(ω),亲核性(N),穆里肯电负性( 骨灰盒:x-wiley:08943230:media:poc4139:poc4139-math-0001),绝对化学硬度(η ABS),单线态-三重态能隙(ΔE S-T ),和最高占据分子轨道(HOMO)-lowest未占分子轨道(LUMO)能隙(ΔE H-L )。带有两个环丙基的结构1在氯仿和水中是最酸性的物质。
更新日期:2020-09-14
down
wechat
bug