Synthesis: Molecular Structure, Thermal-Calorimetric and Computational Analyses, of Three New Amine Borane Adducts - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Molecules Année : 2023

Synthesis: Molecular Structure, Thermal-Calorimetric and Computational Analyses, of Three New Amine Borane Adducts

Résumé

Cyclopropylamine borane C 3 H 5 NH 2 BH 3 (C3AB), 2-ethyl-1-hexylamine borane CH 3 (CH 2) 3-CH(C 2 H 5)CH 2 NH 2 BH 3 (C2C6AB) and didodecylamine borane (C 12 H 25) 2 NHBH 3 ((C12)2AB) are three new amine borane adducts (ABAs). They are synthesized by reaction of the corresponding amines with a borane complex, the reaction being exothermic as shown by Calvet calorimetry. The successful synthesis of each has been demonstrated by FTIR, Raman and NMR. For instance, the 11 B NMR spectra show the presence of signals typical of the NBH 3 environment, thereby implying the formation of B-N bonds. The occurrence of dihydrogen bonds (DHBs) for each of the ABAs has been highlighted by DSC and FTIR, and supported by DFT calculations (via the Mulliken charges for example). When heated, the three ABAs behave differently: C3AB and C2C6AB decompose from 68 to 100 • C whereas (C12)2AB is relatively stable up to 173 • C. That means that these ABAs are not appropriate as hydrogen carriers, but the 'most' stable (C12)2AB could open perspectives for the synthesis of advanced materials.
Fichier principal
Vignette du fichier
Art 165 - Molecules 28 2023 1469 - C3AB C2C6AB C122AB.pdf (2.51 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Licence : Domaine public

Dates et versions

hal-03974535 , version 1 (06-02-2023)

Identifiants

Citer

Kevin Turani-I-Belloto, Rodica Chiriac, François Toche, Eddy Petit, Pascal G Yot, et al.. Synthesis: Molecular Structure, Thermal-Calorimetric and Computational Analyses, of Three New Amine Borane Adducts. Molecules, 2023, 28 (3), pp.1469. ⟨10.3390/molecules28031469⟩. ⟨hal-03974535⟩
8 Consultations
26 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More