A polarographic, voltammetric and spectroscopic study of 2-mercaptonicotinic acid and its chromium (III) complex

Synthesis and Structure of a Series of New Molybdenum(VI) Complexes with the Esters of 2-Mercaptonicotinic Acid

“…The complexes bis(alkyl-2-mercaptonicotinato-N,S,N,'S')-dioxomolybdenum(VI), [alkyl = methyl (1), ethyl (2), n-propyl (3), i-propyl (4), n-butyl (5) and cyclohexyl (6)] were obtained in the reactions of MoO 2 Cl 2 or MoO 2 (acac) 2 with 2-mercaptonicotinic acid and tetramethylammonium chloride in corresponding alcohol while the by-products in all reactions were esters of 2-mercaptonicotinic acid, 1,1'-dithio-2,2'-alkylnicotinate and tetramethylammonium hexachloromolybdate(V) (8). The formation of such reaction products may be explained by catalytic action of molybdenum(V) according to the proposed mechanism given in Scheme 1.…”

“…Preparation of the complexes [MoO 2 (C 5 H 3 NSCOOR) 2 ], [R = -CH 3 , (1) -CH 2 CH 3 , (2) -CH 2 CH 2 CH 3 , (3) -(CH 3 ) 2 CH, (4) -CH 2 CH 2 CH 2 CH 3 , (5) -C 6 …”

“…However, there are just a few studied complexes with other metals, such as Pd II [4], Cu II [5] and Cr II [6].…”

Multifunctional coordination polymers based on copper(i) and mercaptonicotinic ligands: synthesis, and structural, optical and electrical characterization

“…† It displays two bands in the 250-400 nm region with ε of the order of 2-3 × 10 4 M −1 cm −1 in EtOH (Table S4 †), similarly to what was observed for 2-mercaptonicotinic acid. 19 The absorption spectrum of H 2 dtdn is confined below 300 nm ( Fig. S18 †), i.e.…”

Crystal structure and spectral characterization of dimethylthallium (III) complexes with 2-mercaptonicotinic acid and esters

“…Although 2-mercaptonicotinic acid is a ligand with interesting possibilities of coordination, either (N,S) or (O,S), a survey of the reported molecular structure determinations for metal complexes revealed that the S,N-bidentate chelating and N,S-bidentate triconnective bridging modes are the most usual coordination patterns for the 2-mercaptonicotinic acid, (Scheme 1, structures II and IV) [1][2][3][4]. The gold(I) complex with the 2-mercaptonicotinic acid describes a S-monodentate coordination mode, (Scheme 1, structure I, [4]).…”