Fluorinated Arylarsonate-Containing Polyoxomolybdates: pH-Dependent Formation of Mo vs Mo Species and Their Solution Properties.

We report on the synthesis and structural characterization of six novel arylarsonate-containing polyoxomolybdates with fluorinated-functionalities in the position of the phenyl ring. The reaction of the various arylarsonic acids, RAsOH [ = 4-F-CH (H), 4-FC-CH (H), 4-FCO-CH (H)] with NaMoO·2HO in aqueous pH 3 solution resulted in the heteropoly-6-molybdates [{(4-F-CH)As}MoO(HO)] (), [{(4-FC-CH)As}MoO] () and [{(4-FCO-CH)As}MoO(HO)] (), which were isolated as guanidinium salts. When the reaction was performed in aqueous pH 1 solution the inverted-Keggin type heteropoly-12-molydates [{(4-F-CH)As}MoO] (), [{(4-FC-CH)As}MoO] () and [{(4-FCO-CH)As}MoO] (), were obtained and isolated as sodium salts.

Triphenylbismuth(v) di[(iso)nicotinates] - transmetallation agents or divergent organometalloligands? First organobismuth(v)-based silver(i) coordination polymers.

The reaction of PhBiCl with alkali salts of isonicotinic and nicotinic acids afforded PhBi[O(O)CCHN-4] (1) and PhBi[O(O)CCHN-3] (2), respectively, which were characterized by multinuclear NMR spectroscopy in solution, mass spectrometry and IR spectroscopy in the solid state. Their molecular structures were established by single-crystal X-ray diffraction. For both 1 and 2 the molecules contain a trigonal bipyramidal CBiO core, with the phenyl groups in equatorial positions.