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A Computational Scrutiny on the Stability, Structure, and Electronic Features of Alkanesulfonate Based Zincate Salts with Varying Countercations
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-07 , DOI: 10.1002/slct.201803175
Rohit Singh 1 , Kaman Singh 2 , Sarvesh Kumar Pandey 3
Affiliation  

A systematic computational study has been carried out to investigate the effect of variation of countercations on the structures, stability, and electronic properties of six zincate salts, R2ZM [where ZM=[Zn(OSO2Me)4]2−; R=Et4N+ (EZM), Et3MeN+ (E3MZM), Et2Me2N+ (E2 M2ZM), EtMe3N+ (EM3ZM), Me4N+ (MZM), and H4N+ (HZM)], based on weakly‐coordinating alkanesulfonate ligand. The Computational exploration compared the binding energies (BEs), change in Gibb's free energies (▵Gform), HOMO‐LUMO energy gaps (HLEGs) and other derived parameters, using B97‐D/cc‐pVDZ level of study, to investigate the stability pattern, structures, and electronic properties of the cation‐anion set of models. The comparative analyses of model salts reveal the stability order as HZM > MZM > EM3ZM > E3MZM > E2 M2ZM > EZM on account of the involved primary and secondary interactions, BEs, and the ▵Gform. Few other important electronic parameters that are closely associated with the chemical reactivity, chemical hardness, chemical potential, and electrophilicity index are highest for HZM salt (most stable), whereas, lowest (least reactive) value was found in case of its dipole moment. The present study on salts based on less explored weakly‐coordinating alkanesulfonate ligand would assist in predicting the rational synthesis and design of new metal‐containing salts with properties for desired applications.

中文翻译:

基于烷烃磺酸盐的具有不同抗衡阳离子的锌酸盐的稳定性,结构和电子特性的计算研究

已经进行了系统的计算研究,以研究抗衡阳离子的变化对六种锌酸盐R 2 ZM [其中ZM = [Zn(OSO 2 Me)4 ] 2-的结构,稳定性和电子性能的影响;R = Et 4 N +EZM),Et 3 MeN +E3MZM),Et 2 Me 2 N +E2 M2ZM),EtMe 3 N +EM3ZM),Me 4 N+MZM)和H 4 N +HZM)],基于弱配位的链烷磺酸盐配体。计算探索使用B97-D / cc-pVDZ研究水平比较了结合能(BEs ),吉布自由能的变化(▵G形式),HOMO-LUMO能隙(HLEGs)和其他派生参数,以研究阳离子-阴离子模型集的稳定性模式,结构和电子性质。模型盐的比较分析显示稳定性顺序为HZM > MZM > EM3ZM > E3MZM > E2 M2ZM > EZM考虑到所涉及的主要和次要相互作用,BE和▵G形式。与HZM盐最高(最稳定)的化学反应性,化学硬度,化学势和亲电性指数密切相关的其他重要电子参数很少,而在偶极矩的情况下却发现最低(最低反应性)值。基于较少探索的弱配位链烷磺酸盐配体的盐的本研究将有助于预测合理合成和设计具有所需应用性能的新型含金属盐。
更新日期:2018-12-07
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