Mono- and dinuclear Fe(III) complexes with the N2O2 donor 5-chlorosalicylideneimine ligands; synthesis, X-ray structural characterization and magnetic properties

Dinuclear Zn(II) and tetranuclear Co(II) complexes of a tetradentate N2O2 Schiff base ligand: Synthesis, crystal structure, characterization, DFT studies, cytotoxicity evaluation, and catalytic activity toward benzyl alcohol oxidation

“…Many dinuclear complexes of tetradentate N 2 O 2 Schiff base ligands with various metal ions have been reported. [12][13][14][15][16] The corresponding dinuclear Zn(II) complexes have a flexible coordination environment with a variety of geometries such as tetrahedral, square planar, trigonal bipyramidal, square pyramidal, and octahedral. [17][18][19][20][21] Among polynuclear transition metal complexes, tetranuclear clusters with cubane-like M 4 O 4 core have been widely studied and have received considerable attention.…”

Crystal structure and photoluminescence properties of a new CdIIcoordination polymercatena-poly[bis[4-bromo-2-({[2-(pyrrolidin-1-yl)ethyl]imino}methyl)phenolato-κ3N,N′,O]di-μ3-chlorido-di-μ2-chlorido-bis(methanol-κO)tricadmium(II)]

“…Schiff base-metal complexes have been used widely as catalysts for many organic reactions, such as ring-opening polymerization and oxidation (Keypour et al, 2015;Chen et al, 2006;Hung et al, 2008;Gupta & Sutar, 2008). Recently, our research group and others have reported ISSN 2053ISSN -2296 # 2016 International Union of Crystallography the syntheses and structural characterization of transition metal complexes containing ONNO-, ONO-and NNO-type Schiff base ligands (Gungor & Kara, 2011Kara, 2007Kara, , 2008aYahsi et al, 2011;Yahsi & Kara, 2013, 2014Hung & Lin, 2009;Surati & Thaker, 2010;Khandar et al, 2015;Keypour et al, 2015). In view of the importance of Cd II coordination polymers and in an effort to enlarge the library of such complexes, we report here the synthesis of a new dichloride-bridged one-dimensional polymeric Cd II complex, namely catena-poly [bis[4-bromo-2-({[2-(pyrrolidin-…”

Solvatomorphism and Electronic Communication in FeIII N,N-Bis(salicylidene)-1,3-propanediamine Dimers

“…[12] It is also noteworthy that the non-solvated compound, [(salpn)Fe(m 2 -salpn)Fe(salpn)], is prepared from Fe 2 (SO 4 ) 3 and recrystallized by diffusion of diethyl ether into a solution of the complex in MeOH. [15] Our approach of slow evaporation of the solvent clearly traps MeOH in the lattice and suggests that other solvatomorphs may be accessible.…”

“…Iron(III) complexes with salpn typically form dinuclear systems bridged either by phenoxido or oxo ligands. [10][11][12] Dimers may also be made with appropriate bridging ligands and unlike related salen (salen ¼ N,N 0 -bis (salicylidene)-1,2-ethylenediamine) complexes, both cis and trans isomers are easily accessible adding extra versatility. [13,14] While the magnetic behaviour of such dimers has been well studied the degree of electronic communication between the metal centres has received comparatively less attention.…”