Synthesis, X-ray structural, IR spectroscopic, thermal and DFT studies of nickel(II) and copper(II) complexes with 3-methylpicolinic acid. UV–Vis spectrophotometric study of complexation in the solution

Synthesis and Characterization of a Copper(II) Complex with 6-Hydroxypicolinic Acid and 3-Picoline

“…[10][11][12][13][14] A lot of copper(II) complexes with picolinic acid derivatives and N-donor ligands (pyridine, 4-picoline, 3-picoline) are known from the literature. The pentacoordinated complexes [Cu(3-Mepic) 2 (4-pic)], 15 [Cu(3-Mepic) 2 (3-pic)], 16 [Cu(6-Mepic) 2 11,18 from the corresponding solvents (pyridine, 4-picoline, 3-picoline).…”

Hydroperoxidations of Alkenes using Cobalt Picolinate Catalysts

“…Catalysts bearing picolinate groups with a methyl group at the 3-position of the pyridine, however, were much more reactive (complex I ), leading to an approximately four-fold increase in the rate of reaction. The elevated reactivity of 3-substituted pyridine complexes compared to ones with substitution at other positions has been noted elsewhere. , This increase in reactivity could be attributed to interactions between the methyl and carboxylate groups, which cause the pyridyl group to twist out of the plane, instead of being coplanar with the carboxylate group. Formation of the hydroperoxide product, however, was accompanied by considerable quantities of the corresponding alcohol 2b .…”

Synthesis, Crystal Structure and Antimicrobial Properties of an Anhydrous Copper(II) Complex of Pyridine-2-Carboxylic Acid

“…It has metal ion-chelating activity and is an active agent in some drugs (Masui 2001, Beuerle & Pichersky 2002, Kalinowska et al 2007, Kukovec et al 2013. Picolinic acid and its metal complexes has been the subject of intense research activity recently due to their broad spectrum of physiological activity as well as for the design of new metallopharmaceuticals (Yasui et al 2002, Chaudhary et al 2005, Kalinowska et al 2007, Mautner & Massoud 2007, Kukovec et al 2013.…”

“…It has metal ion-chelating activity and is an active agent in some drugs (Masui 2001, Beuerle & Pichersky 2002, Kalinowska et al 2007, Kukovec et al 2013. Picolinic acid and its metal complexes has been the subject of intense research activity recently due to their broad spectrum of physiological activity as well as for the design of new metallopharmaceuticals (Yasui et al 2002, Chaudhary et al 2005, Kalinowska et al 2007, Mautner & Massoud 2007, Kukovec et al 2013. It has been shown to bind different metal ions including alkali metals, transition metals and lanthanides (Goher et al 1992, Goher & Mautner 1994, Goher & Mautner 1995, Goher et al 1996, Mautner et al 1997, Barandika et al 1999, Chattopadhyay et al 2003, Mautner & Massoud 2007, Casas et al 2008, Siddiqui 2012, Wang et al 2012.…”

“…The ligand can also form polynuclear complexes in which it acts as a bridge between metal ions (Wu et al 2005, Girginova et al 2007. The N, O-chelating bonding mode and H-bonding between the carboxylate moiety and water molecules are predominant (Kalinowska et al 2007, Kukovec et al 2013). …”