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Nature of Alkali‐ and Coinage‐Metal Bonds versus Hydrogen Bonds
Author(s) -
Larrañaga Olatz,
Arrieta Ana,
Fonseca Guerra Célia,
Bickelhaupt F. Matthias,
Cózar Abel
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202001201
Subject(s) - alkali metal , hydrogen bond , chemistry , metal , density functional theory , crystallography , hydrogen atom , computational chemistry , atom (system on chip) , bond energy , inorganic chemistry , molecule , organic chemistry , group (periodic table) , computer science , embedded system
We have quantum chemically studied the structure and nature of alkali‐ and coinage‐metal bonds (M‐bonds) versus that of hydrogen bonds between A−M and B − in archetypal [A−M⋅⋅⋅B] − model systems (A, B=F, Cl and M=H, Li, Na, Cu, Ag, Au), using relativistic density functional theory at ZORA‐BP86‐D3/TZ2P. We find that coinage‐metal bonds are stronger than alkali‐metal bonds which are stronger than the corresponding hydrogen bonds. Our main purpose is to understand how and why the structure, stability and nature of such bonds are affected if the monovalent central atom H of hydrogen bonds is replaced by an isoelectronic alkali‐ or coinage‐metal atom. To this end, we have analyzed the bonds between A−M and B − using the activation strain model, quantitative Kohn‐Sham molecular orbital (MO) theory, energy decomposition analysis (EDA), and Voronoi deformation density (VDD) analysis of the charge distribution.