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Cation Protonation Degree Influence on the Formation of Anion...Anion and Other Non-Valent Interactions in Guaninium Perrhenates and Pertechnetateстатья
- Авторы: Novikov Anton P., German Konstantin E., Safonov Alexey V., Grigoriev Mikhail S.
- Журнал: ChemistrySelect
- Том: 7
- Номер: 33
- Год издания: 2022
- DOI: 10.1002/slct.202202814
- Аннотация: H2Gua(ReO4)2, HGuaReO4 and HGuaTcO4 were first obtained and structurally characterized. Two types of anionic interactions were found in the structure with the twice protonated cation. One type of the rare double‐lock interaction of perrhenate anions was found in the case of the singly protonated guanine salt. Singly charged cations are linked by hydrogen bonds into layer. π‐Stacking interactions between these layers form 3‐dimensional frame. Multiple and relatively abundant anion‐π interactions are formed in H2Gua(ReO4)2 as compared to HGuaReO4 and HGuaTcO4. Different types of crystal packing are formed in the compounds under research. Hirshfeld surface analysis has given evidence that the main contribution to intermolecular interactions for the cations is made by hydrogen bonds of the O⋅⋅⋅H/H⋅⋅⋅O type in all structures, O⋅⋅⋅C/C⋅⋅⋅O and O⋅⋅⋅N/N⋅⋅⋅O interactions in H2Gua(ReO4)2, N⋅⋅⋅H/H⋅⋅⋅N and H⋅⋅⋅H interactions in HGuaReO4 and HGuaTcO4. In this work, guaninium perrhenates and pertechnetate were obtained for the first time and structurally characterized. The influence of the decrease in cation protonation on non‐valent interactions in crystals, including anion⋅⋅⋅anion interactions between perrhenate or pertechnetate anions, π‐stacking between cations, and anion‐π interactions, is discussed. Additional quantitative analysis of non‐valent interactions was carried out using Hirshfeld surface analysis.
- Добавил в систему: Сафонов Алексей Владимирович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | manuscriptNovikovetal11.08AP.docx | manuscriptNovikovetal11.08AP.docx | 1,6 МБ | 3 октября 2022 [ASafonof] |