A novel proton transfer compound (a new molybdate salt) and its X-ray structure

Abstract

A novel proton transfer compound (OHRNH₃)₂²⁺(MoO₄)^2- (R = 2-methyl-1-propyl), derived from 2-amino-2-methyl-1-propanol and MoO₂(acac)₂, synthesized and characterized by ¹H NMR, X-ray diffraction analysis, UV-Vis and FT-IR spectroscopy. The single crystal X-ray diffraction analysis revealed that intra- and intermolecular proton transfer from (MoO₄H₂) to (OHRNH₂) results in the formation of a new molybdate salt that its fragments are connected through H-bonding and ion-pairing as shown in the X-ray crystal structure. This salt crystallizes in the space group P2₁/n P_1 of the monoclinic system, with four molecules per unit cell. The unit cell parameters are a = 13.6091(11) Å, b = 6.1049(5) Å, c = 17.0840(13) Å and β = 97.745(4)°.

KEY WORDS: Proton transfer, Molybdate salt, X-ray structure, MoO₂(acac)_2, 2-Amino-2-methyl-1-propanol

Bull. Chem. Soc. Ethiop. 2013, 27(1), 69-76.

DOI: http://dx.doi.org/10.4314/bcse.v27i1.7