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Spectroscopic properties and antimicrobial activity of dioxomolybdenum(VI) complexes with heterocyclic S,S’-ligands

“…3,4 Moreover, dithiocarbamato (Rdtc -) ligands are known to form stable complexes with many transition metals. [5][6][7][8][9][10][11][12][13][14] Interest in dithiocarbamate complexes arises because of their versatile structures, depending on the manner of coordination, [15][16][17][18][19] and the type of their biological activity. [20][21][22][23][24] Additionally, these coordination compounds have intriguing properties, being good corrosion inhibitors in acidic media.…”

Novel O,O′‐Donor Oxo‐MoIV Hydrotris(3‐isopropylpyrazolyl)borate Complexes Formed by Chelation of Potentially Hydrogen‐Bonding Phenolate Ligands on Reduction of Dioxo‐MoVI Complexes

“…Thus, the reaction of aqueous molybdate solutions with salicylaldehyde yields the cis-dioxo-Mo VI complex, MoO 2 (OC 6 H 4 CHO) 2 . [11,12] This complex and a number of its ring-substituted derivatives react with amines to yield Schiff base complexes of varying nuclearity. [11,13] The reactions of [MoO 2 (CN) 4 ] 4-and salicylaldehyde at pH 7.8-12 are postulated to form [MoO(CN) 3 (OC 6 H 4 CHO)] 2-, [14] while the reaction of (NH 4 ) 2 2 and MoO 2 (OC 6 H 4 CO 2 R)(ORЈ) (R = Me, Et), have been known for more than a century, [16] although no crystal structures for these compounds have been reported.…”

Dioxomolybdenum(VI) Complexes as Catalytic Neutral Esterification Agents

“…Many of these compounds possess potent antibiotic, anti-tumoral, and other types of interesting biochemical activities. 21 A mixture of propionic acid (4.77 g, 64.35 mmol), methanol (30 ml) and catalyst MoO 2 (acac) 2 (1.05 gm, 3.22 mmol) was refluxed for 8 hours. 5 ml of the above mixture was titrated against standard KOH solution before and after the reaction.…”