6533b828fe1ef96bd1287c0e

RESEARCH PRODUCT

Bromide hydrogen oxalate salts with the diprotonated 1,4-diazabicyclo[2.2.2]octane counterion

Abdoulaye SambLibasse DiopMamadou NdiayeLaurent PlasseraudAllen G. OliverMouhamadou Birame Diop

subject

chemistry.chemical_classificationHydrogenHydrogen bondchemistry.chemical_element02 engineering and technologyGeneral ChemistryDABCO010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesMedicinal chemistryOxalate0104 chemical scienceschemistry.chemical_compoundchemistryBromide[CHIM.CRIS]Chemical Sciences/Cristallography[CHIM]Chemical SciencesCounterion0210 nano-technologyOctane

description

Abstract Two new salts composed of the diprotonated 1,4-diazabicyclo[2.2.2]octane (DABCO) molecule as the cations and bromide and hydrogen oxalate as the anions have been isolated and structurally characterized by X-ray diffraction analysis. The salt [DABCOH2]{[HC2O4][Br]} (1) crystallizes in the orthorhombic system, space group P212121 with a = 9.0809(7), b = 9.5156(7), c = 12.3558(9) Å, V = 1067.67(14) Å3 and Z = 4. The salt [DABCOH2]2{[HC2O4][Br]3}·H2O (2) crystallizes in the orthorhombic system, space group Pnma with a = 26.6554(17), b = 7.3711(4), c = 10.7421(7) Å, V = 2110.6(2) Å3 and Z = 4. The compounds were prepared from ethanolic solutions of [DABCOH2][HC2O4]2 (L 1 ) and ZnBr2 in molar ratios of 2:1 and 1:1, respectively. The salts 1 and 2 exhibit extended hydrogen bonding networks leading to supramolecular topologies.

10.1515/znb-2020-0097https://hal.archives-ouvertes.fr/hal-03358004