Binuclear oxomolybdenum(V) complexes with mercaptocarboxylic acids: synthesis, characterization and electrochemistry

Study on the Reactivity of Diphenylthiocarbazone with Mo(V). Synthesis, Characterization and Spectroscopic Studies of Solid Compounds

“…This suggests the dimeric nature of this complex. [20] A shoulder observed at 335 cm 21 is probably due to the Mo-Cl stretching vibration. [20] The 95 Mo RMN spectrum of complex C1 recorded in DMSO exhibits only one line at þ150 ppm.…”

“…[20] A shoulder observed at 335 cm 21 is probably due to the Mo-Cl stretching vibration. [20] The 95 Mo RMN spectrum of complex C1 recorded in DMSO exhibits only one line at þ150 ppm. Its chemical shifts agrees with those reported in the literature for molybdenum(V) dimeric complex.…”

“…Although only the intense symmetric stretching mode is observed, a cis disposition of the terminal Mo5 5Ot group in the molybdenum (V) binuclears is predicted. [20] New bonds were observed between 800 and 845 cm 21 and are assigned to the antisymmetric and symmetric stretching bands of Mo-O bridge group (Mo-O-Mo), respectively. This suggests the dimeric nature of this complex.…”

Coordination modes of 2-mercaptonicotinic acid: synthesis and crystal structures of palladium(ii), platinum(ii), rhenium(iii) and molybdenum(vi) complexes

“…Infrared and Raman spectroscopic data for HnicSH and its complexes are shown in Table 3; tentative assignments are based on those found in the literature for HnicSH, 23,24,44 heterocyclic thiones 45-47 and thiosalicylic acid complexes. 16, 19 2-Mercaptonicotinic acid shows the characteristic thionethiol tautomerism 1 (Scheme 2). The absence, in the infrared spectrum of the free HnicSH ligand, of a ν(S-H) absorption band at ca.…”

“…Several pyridine-2-thiolate 3-15 and thiosalicylate complexes [16][17][18][19] have been reported but only a few complexes of 2-mercaptonicotinic acid (HnicSH) have been studied. [20][21][22][23][24][25] Complexes of HnicSH containing transition metals, which have been isolated include [{Os 3 H(CO) 10 } 2 (nicS)], 21 [{Os 3 H(CO) 9 }-(nicS){Os 3 H(CO) 10 }], 21 [M 3 (HnicS) 3 Cl 3 ] (M = Pd, Pt), 23 [Ag-(HnicS)] 6 ؒ4H 2 O, 24 {Na[Ag(nicS)]ؒH 2 O} n , 24 H[Au(HnicS) 2 ], 24 Na 3 [Au(nicS) 2 ]ؒ2H 2 O, 24 [Ag(HnicS)(PPh 3 ) 2 ], 25 [Ag(HnicS)-(PPh 3 ) 3 ] 25 and [Au(HnicS)(PPh 3 )].…”