Here we compare the effectiveness of three different synthetic approaches that we have applied to get a new coordination polymer (1) deriving from trans-ferulic acid (H2FA) and CoCl2⋅6H2O. The solvothermal reaction between the two reagents conducted in DMF for 6 days leads to X-ray-quality single crystals of 1, whose structural analysis revealed to correspond to the 1D-polymer [Co2(FA)Cl2(DMF)3]n. The yield of the reaction ranged from 24% to 52%, depending on the experimental conditions. The 1D-chains contain ferulate dianions bridging two different Co2+ cations, one octahedral and one tetrahedral. The same reaction conducted under reflux using H2FA or its ammonium salt (NH4)2FA leads to 1 but only in trace amounts (yield ≤ 11%). Complete conversion of the reagents to 1 was instead observed by grinding (NH4)2FA and CoCl2⋅6H2O by means of a planetary ball mills, already after 1 h of reaction. 1 turned out to be reactive towards moisture, with formation of the inorganic crystalline compound [CoCl2(H2O)4]⋅2H2O and a not yet defined amorphous phase that we tentatively formulate as [CoFA(H2O)x]n. Finally, the thermal behavior and magnetic properties of 1 are also reported.

Comparison of different synthetic approaches for the fabrication of a bio-inspired 1D-coordination polymer: From solution chemistry to mechanochemistry / Gazzurelli, Cristina; Solzi, Massimo; Cugini, Francesco; Mazzeo, Paolo Pio; Bacchi, Alessia; Pelagatti, Paolo. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 539:(2022), p. 121010. [10.1016/j.ica.2022.121010]

Comparison of different synthetic approaches for the fabrication of a bio-inspired 1D-coordination polymer: From solution chemistry to mechanochemistry

Gazzurelli, Cristina
Investigation
;
Solzi, Massimo
Writing – Review & Editing
;
Cugini, Francesco
Investigation
;
Mazzeo, Paolo Pio
Investigation
;
Bacchi, Alessia
Writing – Review & Editing
;
Pelagatti, Paolo
Supervision
2022-01-01

Abstract

Here we compare the effectiveness of three different synthetic approaches that we have applied to get a new coordination polymer (1) deriving from trans-ferulic acid (H2FA) and CoCl2⋅6H2O. The solvothermal reaction between the two reagents conducted in DMF for 6 days leads to X-ray-quality single crystals of 1, whose structural analysis revealed to correspond to the 1D-polymer [Co2(FA)Cl2(DMF)3]n. The yield of the reaction ranged from 24% to 52%, depending on the experimental conditions. The 1D-chains contain ferulate dianions bridging two different Co2+ cations, one octahedral and one tetrahedral. The same reaction conducted under reflux using H2FA or its ammonium salt (NH4)2FA leads to 1 but only in trace amounts (yield ≤ 11%). Complete conversion of the reagents to 1 was instead observed by grinding (NH4)2FA and CoCl2⋅6H2O by means of a planetary ball mills, already after 1 h of reaction. 1 turned out to be reactive towards moisture, with formation of the inorganic crystalline compound [CoCl2(H2O)4]⋅2H2O and a not yet defined amorphous phase that we tentatively formulate as [CoFA(H2O)x]n. Finally, the thermal behavior and magnetic properties of 1 are also reported.
Comparison of different synthetic approaches for the fabrication of a bio-inspired 1D-coordination polymer: From solution chemistry to mechanochemistry / Gazzurelli, Cristina; Solzi, Massimo; Cugini, Francesco; Mazzeo, Paolo Pio; Bacchi, Alessia; Pelagatti, Paolo. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - 539:(2022), p. 121010. [10.1016/j.ica.2022.121010]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2928811
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