Synthesis and structural characterization of (C14H16N2)3(C14H17N2)2[β-Mo8O26]

• Published in: Journal of chemical sciences (Bangalore, India) Vol. 127; no. 10; pp. 1769 - 1775
• Main Authors: ZEBIRI, IKRAM, BOUFAS, SIHEM, MOSBAH, SALIMA, BENCHARIF, LEÏLA, BENCHARIF, MUSTAPHA
• Format: Journal Article
• Language: English
• Published: New Delhi Springer India 01.10.2015
• Subjects: Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Electronic properties; Octamolybdate; Crystal structure
• ISSN: 0974-3626; 0973-7103
• DOI: 10.1007/s12039-015-0948-1

A novel polyoxomolybdate (C 14 H 16 N 2 ) 3 (C 14 H 17 N 2 ) 2 [ β -Mo 8 O 26 ] ( 1 ) has been synthesized from hydrothermal reaction of tolidine and molybdenum trioxide in water and characterized by its IR and UV spectra, 1 H NMR, cyclic voltammetry and single crystal X-ray diffraction. Compound 1 crystallizes in the triclinic crystal system, space group Pı̄, with the crystal cell parameters of a =11.5360 Å, b =11.6080 Å, c =15.2520 Å, α =72.50 ∘ , β =79.46 ∘ , γ =86.91 ∘ , V =1915.00 Å 3 and Z =1. The asymmetric unit of the crystal structure of (C 14 H 16 N 2 ) 3 (C 14 H 17 N 2 ) 2 [ β -Mo 8 O 26 ] contains β -octamolybdate [ β -Mo 8 O 26 ] 4− anions, two tolidine molecules and shows the presence of monoprotonated tolidine cations. One tolidine molecule and a β -Mo 8 O 26 polyanions species lie across crystallographic inversion centres while the two tolidine molecules occupy general sites. Graphical Abstract The structural characterization of the title compound namely (C 14 H 16 N 2 ) 3 (C 14 H 17 N 2 ) 2 [ β -Mo 8 O 26 ] isolated from hydrothermal synthesis of a mixture of C 14 H 16 N 2 and MoO 3 in distilled water is reported. The compound is characterized by IR and UV spectra, 1 H NMR, cyclic voltammetry and single crystal X-ray diffraction.