Gugin, Nikita Y. Y. and Virovets, Alexander V. V. and Peresypkina, Eugenia and Davydova, Elena I. I. and Timoshkin, Alexey Y. Y. (2022) Coordination polymers and molecular complexes of group 13 metal halides with bis-pyridylethane: comparison with rigid N-containing ligands. CRYSTENGCOMM, 24 (47). pp. 8266-8278. ISSN 1466-8033
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A systematic structural study of novel complexes formed by aluminium and gallium trihalides with 1,2-bis(4-pyridyl)ethane (bpa) is performed. The complexes were synthesized using a solvent-free melt reaction approach and crystallized by sublimation in vacuum. Ionic coordination polymers (CPs) [MCl2(bpa)(2)](+)[MCl4](-), M = Al (1) or Ga (2), exhibit isostructural one-dimensional networks. Ionic CP 3 [AlBr2(bpa)(2)]Br-+(-) has a 1 : 2 composition and possesses a cationic part analogous to 1 and 2, featuring a modulated structure, in which the entire polymer chain and/or the positions of the bromido ligands are displaced according to a harmonic law. In the ionic CP [Ga2Br4(bpa)(5)](2+)[GaBr4](2)(-)& BULL;bpa (4) featuring a 2 : 3 composition, the [Ga2Br4(bpa)(5)](2+) cation forms a 2D polymer framework, in which {GaBr2}(+) nodes are linked by the mu-bpa spacers forming 1D chains that are further interconnected by mu-bpa ligands of every second metal center. In the case of the 2 : 1 ratio, irrespective of the Lewis acid, molecular complexes [(MX3)(2)(bpa)] (MX3 = AlCl3 (5), AlBr3 (6), GaCl3 (7), and GaBr3 (8)) were obtained. Solid-state structures of complexes 1-8 were determined for the first time.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ORGANIC FRAMEWORKS; LEWIS ACIDITY; ALUMINUM; GALLIUM; 1D; TRIHALIDES; CHEMISTRY; PYRAZINE; REMOVAL; INDIUM |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Feb 2024 08:35 |
| Last Modified: | 16 Feb 2024 08:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58006 |
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