Cation-lone pair interaction in Alkali/alkaline earth metal ion-heavier borazine analogue complexes.

IF 2.3 3区 化学 Q3 CHEMISTRY, PHYSICAL
Bapan Saha
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引用次数: 0

Abstract

The present study is the first report on the formation of alkali/alkaline earth metal ion-heavier borazine analogue complexes via cation-lone pair interaction. Density functional calculations are performed in scrutinizing the complex formation between alkali (Li+, Na+, K+)/alkaline earth (Be2+, Mg2+, Ca2+) metal ions and heavier borazine analogues (HBA) viz. B3P3H6, Al3N3H6, Al3P3H6, Al3As3H6, and Ga3P3-H6. The complexes are found to be stable in gas phase with stabilization energies within the range 26.40 to 324.74 kcalmol-1. The stability can be attributed to the polarizing power of the involved metal ions. Presence of solvent phase exerted notable impact on the stability of the complexes; stability is reduced significantly with the increase in solvent polarity. The process of complexation is exothermic and spontaneous. QTAIM analysis indicated the presence of both ionic and covalent interaction between HBAs and metal ions. HOMO energy, Wiberg bond index, NCI-isosurface and RDG plot analysis revealed the major role of cation-lone pair interaction in the complexation process.

碱/碱土金属离子-重硼嗪类似物配合物中的阳离子-孤对相互作用。
本研究首次报道了碱金属离子/碱土金属离子与较重的硼嗪类似物通过阳离子-离子对相互作用形成的络合物。在研究碱(Li+、Na+、K+)/碱土(Be2+、Mg2+、Ca2+)金属离子与较重的硼嗪类似物(HBA),即 B3P3H6、Al3N3H6、Al3P3H6、Al3As3H6 和 Ga3P3-H6 之间形成的络合物时,进行了密度泛函计算。这些复合物在气相中非常稳定,稳定能在 26.40 至 324.74 千卡摩尔-1 之间。这种稳定性可归因于相关金属离子的极化能力。溶剂相的存在对络合物的稳定性有显著影响;随着溶剂极性的增加,稳定性显著降低。络合过程是放热和自发的。QTAIM 分析表明 HBAs 与金属离子之间存在离子和共价作用。HOMO能、Wiberg键指数、NCI-isosurface和RDG图分析表明了阳离子-离子对相互作用在络合过程中的主要作用。
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来源期刊
Chemphyschem
Chemphyschem 化学-物理:原子、分子和化学物理
CiteScore
4.60
自引率
3.40%
发文量
425
审稿时长
1.1 months
期刊介绍: ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.
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