Bis{2-[2-(hydroxymethyl)phenyliminomethyl]phenolato}cobalt(III) nitrate monohydrate

Abstract

The title compound, [Co(C14H12NO2)2]NO3·H2O, is the first structurally characterized mononuclear complex of the mono­anionic tridentate N‐(2‐hydroxy­methyl­phen­yl)­salycylidene­iminate ligand. The Co atom has an octa­hedral environment formed by two ligands with meridional coordination.

Novel Tetranuclear Heterometallic Mn3Ni and Mononuclear Ni Complexes with an ONO Schiff Base Ligand: Synthesis, Crystal Structures, and Magnetic Properties

“…The coordination environment surrounding the Ni(II) ion adopts an octahedral geometry, with a N 2 O 4 donor set originating from the tridentate ligand (HL1) − . Previously reported mononuclear complexes with (HL1) − , such as [Co(HL1) 2 ]NO 3 •2H 2 O, has a mer-coordination mode [37]. However, due to the larger ionic radius of Ni(II) in comparison to trivalent transition metal ions, the tridentate ligands in this complex coordinate to the Ni atom in a fac mode.…”

Synthesis and Crystal Structure of Bis{2-[(2-hydroxymethylphenyl)-iminomethyl]phenolato}chromium(III) nitrate monohydrate

“…The total structure is quite similar to the reported complex, [Co(HL1-H)2] NO3·H2O, except for the coordination bonding distances. 7 The average distance around for Cr atom in 1 is 0.075 Å longer than that for the Co atom in [Co(HL1-H)2]NO3·H2O. It can be attributed to the difference of ionic radii (Cr 3+ : 0.615, Co 3+ : 0.545 Å).…”

Synthesis and Crystal Structure of a Mononuclear Cobalt(III) Complex with 2-[(2-Hydroxymethylphenyl)iminomethyl]phenol and Dimethylaminopyridine

“…4 The second ligand, (HL1-H) -, is bound to Co(III) as a bidentate chelate by phenoxo oxygen and imino nitrogen atoms. Only the tridentate coordination mode of (HL1-H) -, such as [Co(HL1-H)2]-NO3, 8 has been reported so far. This is the first example of the structurally analyzed bidentate coordination mode of H2L1-H.…”