Therefore form the infrared spectra of metal complexes it is clear that the bis Schiff base ligand coordinated to the metal ions in tridentate
manner though the deprotonated phenolic oxygen, aldimin nitrogen and carbonyl oxygen.
The coordinated nitrogen atom of the central pyridine unit of tridentate
ligand of complex 4 has the lowest spin-spin coupling among all its coordinated nitrogen of the ligands while no significant variation is observed for the three coordinated nitrogen atoms of the terpyridine unit of complex 5.
The synthetic route for the preparation of tridentate
ligand HNMAMQ is as follows.
Boeyens, "Metal ion size selectivity of 1-Thia4, 7-diazacyclononane (9-aneN:S), and other tridentate
Irez, "Synthesis and characterization of new tridentate
iminooxime ligands and their Co(III) complexes," Turkish Journal of Chemistry, vol.
Chou, "Strategic design and synthesis of novel tridentate
bipyridine pyrazolate coupled Ru(II) complexes to achieve superior solar conversion efficiency," Journal of Materials Chemistry, vol.
4,4',4"-methane-triyltris(2-(hydroxymethyl)phenol) was selected as a tridentate
scaffold and was synthesized from 5,5',5"-(hydroxymethane-triy1)tris(2-hydroxybenzoic acid) in two step reduction reactions with H2/Pd and BH3 respectively.
These ligands may act as bidentate through N,O-, tridentate
N,O,O-, N,O,N-, N,O,S-, tetradentate N,N,O,O-, and hexadentate N,N,O,O,S,S-donor ligands [17-23], which can be designed to yield mononuclear or binuclear complexes or one-dimensional (1D), two-dimensional (2D) and three-dimensional (3D) metal-organic frameworks [24-31].
For instance, with increased level of nitrogen contents in creosotebush (Larrea tridentate
) plants, the populations of sucking insect pests were found to increase, but the number of chewing insects turned down (Altieri and Nicholls, 2003).
and combinations thereof and an electrodepositable binder, the binder is comprised of resin(s) comprised of a phosphorous-containing group in which X is a hydrogen, a monovalent hydrocarbon or an oxygen atom having a single covalent bond to the phosphorous atom, and each oxygen atom has a covalent bond to a hydrogen atom, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, or the resin or one of the resins, with the caveat that at least one oxygen atom has a covalent bond to the resin or one of the resins; a carboxylate group separated by from 2-4 carbons from an ester group; and a tridentate
The uptake and binding to bone mineral is determined by the bi- or tridentate
ligand (hydroxybisphosphonate) of the molecule, which is also thought to be responsible for the physicochemical effects, the most important being the inhibition of growth of calcium crystals.
Matsuda et al., "Three-dimensional porous coordination polymer functionalized with amide groups based on tridentate
ligand: selective sorption and catalysis," The Journal of the American Chemical Society, vol.