Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, Volume (76), No (4), Year (2020-8) , Pages (591-603)

Title : ( Crystal and molecular structure of [Ni(2-H2NC(=O)C5H4N)2(H2O)2][Ni(2,6-(O2C)2C5H3N)2]·4.67H2O; DFT studies on hydrogen bonding energies in the crystal )

Authors: Mohammad Chahkandi , Abolfazl Keivanloo Shahrestanaki , Masoud Mirzaei Shahrabi , Muhammad Nawaz Tahir , Joel T. Mague ,

Citation: BibTeX | EndNote

Abstract

[Ni{2-H2NC(O)C5H4N}2(H2O)2][Ni{2,6-(O2C)2C5H3N}2]·4.67H2O, a new complex salt containing a bis(2,6-dicarboxypyridine)nickel(II) anion and a bis(2-amidopyridine)diaquanickel(II) cation, was synthesized and character- ized. The crystal is stabilized by an extensive network of hydrogen bonds. Alternate layers of anions and cations/water molecules parallel to (010) can be distinguished. Computational studies of the network packing of the title compound by high-level DFT-D/B3LYP calculations indicate stabilization of the networks with conventional and non-conventional intermolecular O—H-O,N—H-O and C—H-O hydrogen bonds along with pi-stacking contacts. Due to the presence of water molecules and the importance of forming hydrogen bonds with the involvement of water clusters to the stability of the crystal packing, the importance and role of these water clusters, and the quantitative stability resulting from the formation of hydrogen bonds and possibly other noncovalent bonds such as pi-stacking are examined. The binding energies obtained by DFT-D calculations for these contacts indicate that hydrogen bonds, especially O—H-O and N—H-O, control the construction of the crystalline packing. Additionally, the results of Bader’s theory of AIM for these interactions agree reasonably well with the calculated energies.

Keywords

, DFT, D; Bader’s theory; atoms in molecules; noncovalent interactions; crystal engineering.
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@article{paperid:1078595,
author = {Mohammad Chahkandi and Abolfazl Keivanloo Shahrestanaki and Mirzaei Shahrabi, Masoud and Muhammad Nawaz Tahir and Joel T. Mague},
title = {Crystal and molecular structure of [Ni(2-H2NC(=O)C5H4N)2(H2O)2][Ni(2,6-(O2C)2C5H3N)2]·4.67H2O; DFT studies on hydrogen bonding energies in the crystal},
journal = {Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials},
year = {2020},
volume = {76},
number = {4},
month = {August},
issn = {2052-5206},
pages = {591--603},
numpages = {12},
keywords = {DFT-D; Bader’s theory; atoms in molecules; noncovalent interactions; crystal engineering.},
}

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%0 Journal Article
%T Crystal and molecular structure of [Ni(2-H2NC(=O)C5H4N)2(H2O)2][Ni(2,6-(O2C)2C5H3N)2]·4.67H2O; DFT studies on hydrogen bonding energies in the crystal
%A Mohammad Chahkandi
%A Abolfazl Keivanloo Shahrestanaki
%A Mirzaei Shahrabi, Masoud
%A Muhammad Nawaz Tahir
%A Joel T. Mague
%J Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
%@ 2052-5206
%D 2020

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