Diaryliodonium Tetracyanidometallates Self-Assemble into Halogen-Bonded Square-Like Arrays
| Parent link: | Crystal Growth & Design Vol. 22, iss. 4.— 2022.— [10 p.] |
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| 企业作者: | |
| 其他作者: | , , , , , , |
| 总结: | Title screen Two diphenyliodonium tetracyanidometallates, [Ph2I]2[M(CN)4] (M = Ni and Pd), were prepared through anion metathesis. Their X-ray structural analyses show that the structure-defining contact for both crystals is the charge-assisted I···N halogen bond (HaB) formed between the I atom of the iodonium cations and the N atoms of the CN– ligands. These HaBs assemble the bidentate and 90°-orienting HaB donor Ph2I+ and the tetradentate, square planar, and 90/180°-orienting HaB acceptors [M(CN)4]2– into supramolecular rectangles, which further assemble into infinite chains by sharing the vertexes occupied by the [M(CN)4]2– anions. The noncovalent nature of these contacts was confirmed by density functional theory calculations (M06/def2-TZVP) followed by combined topological analysis of the electron density distribution in the quantum theory of the atoms-in-molecules approach and noncovalent interaction analysis. The philicities of the HaB partners were further verified by the analysis of electron localization function projections, electron density/electrostatic potential profiles along the I···N bond paths, natural bond orbital analysis, and the natural population analysis or atoms-in-molecules charge sums in model systems. |
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2022
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| 主题: | |
| 在线阅读: | https://doi.org/10.1021/acs.cgd.2c00175 |
| 格式: | 电子 本书章节 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667766 |