Crystal structure of oxonium 4,4′-bipyridinium chromium-molybdate(VI) trihydrate, [H3O][C10H10N2][CrMo6H6O24] · 3H2O

C 10H10CrMo6N2O28,t riclinic, P1 (no.2), a =7.9590(3)Å, b =8.6394(3) Å, c =11.6502(5) Å, a =91.559(1)°, b =103.539(1)°,g =95.664(1)°,V =774.0Å 3 , Z =1, R gt (F) =0.029, wR ref (F 2 ) =0.080, T =273 K. Source of materialAm ixture of Na 2 MoO 4 • 2H 2 O( 1.86 mmol), MnCl 2 • 2H 2 O (0.3 mmol), CrCl 3 • 6H2O( 0.75 mmol), 1,10-phenanthroline (0.2 mmol), 4,4'-bipyridine (0.2 mmol), and H 2 O( 10 mL) was stirred for 30 minutes at 75 °C.After the pH value of the solution was adjusted to 3.54 with diluted NaOH solution it was transferred to a23mLTeflon-lined stainless steel reactor.The solution was heated under autogenous pressure at 165 °Cfor 120 h.After slow cooling to room termperature at ar ate of 10 °C/h, pink platelet crystals were filtered off, washed with distilled water and dried in air.

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