Quantitative estimation of the antiferromagnetic interaction between Cu(II) and Sm(III) in two dimensional heterometallic coordination polymer with isonicotinic acid as tectons

Metal(II) Complexes of Compartmental Polynuclear Schiff Bases Containing Phenolate and Alkoxy Groups

“…On the other hand, the reaction of the ligand with Cu(hfacac)2 and Dy(NO3)3·6H2O at pH ~ 9 (Et3N) afforded a complex that is similar to 3 except with different solvents of crystallization: [Cu(L OEt -ambza)]·H2O (4). Probably, one of the The rich diversity of the Schiff base metal complexes constructed from 3-alkoxysalicylaldehyde led to the isolation of fascinating coordination compounds [14,[29][30][31][32][36][37][38][39]. Moreover, aside from the existence of two coordination sites in these compounds, they showed some selectivity towards the N 2 -O 2 coordination sites at which 3d metal(II) (Mn 2+ , Ni 2+ , Cu 2+ , Zn 2+ ) and metal(III) (Mn 3+ , Fe 3+ ) are incorporated [6,14,18,[20][21][22]36,37,41,42].…”

“…Probably, one of the The rich diversity of the Schiff base metal complexes constructed from 3-alkoxysalicylaldehyde led to the isolation of fascinating coordination compounds [14,[29][30][31][32][36][37][38][39]. Moreover, aside from the existence of two coordination sites in these compounds, they showed some selectivity towards the N 2 -O 2 coordination sites at which 3d metal(II) (Mn 2+ , Ni 2+ , Cu 2+ , Zn 2+ ) and metal(III) (Mn 3+ , Fe 3+ ) are incorporated [6,14,18,[20][21][22]36,37,41,42]. In this work, we like to shed the light onto such preference site by exploring the interaction of 3d metal(II) ions with some Schiff bases which have not been extensively studied such as N,N'-bis(3-ethoxy-2-hydroxybenzylidene)-1,2-phenylenediamine (H 2 L OEt -phda) and particularly 2-ethoxy-6-({2-[(3-ethoxy-2-hydroxybenzylidene)amino]-benzyl}iminomethyl)phenol (H 2 L OEt -ambza).…”

“…Among many of these compounds which are widely used are those emerged through the Schiff base condensation reactions of diamines (ethylenediamine, en; propylenediamine, tn; 2,2-dimethylpropylenediamine, dmtn; o-phenylenediamine, phda and o-aminobenzylamine, ambza) with 2-hydroxy-3-alkoxybenzaldehyde (Scheme 1) in ethanol or methanol [1][2][3][4][5][6][7][8][9][10][11][12][13]. This is most likely attributed to not only to their ease of preparation but also to the bridging capability of the deionized phenolic group (pK a = [8][9][10][11][12] to bind two metal ions in close proximity [1][2][3][4][5][6][14][15][16][17]. In addition, these compartmental Schiff base ligands utilize two bonding coordination sites: N 2 -O 2 + O 2 -O 2 for transition metal ions and lanthanides as well as for alkali metal ions, resulted in the formation of discrete mononuclear, homo-showed a wide variety of potential applications ranging from mimic of biologically important molecules [8,27], biomedical field [5,24], catalysis [9,11,17,23,28] to magnetic materials [14,19,26,29,30,…”

“…This is most likely attributed to not only to their ease of preparation but also to the bridging capability of the deionized phenolic group (pK a = [8][9][10][11][12] to bind two metal ions in close proximity [1][2][3][4][5][6][14][15][16][17]. In addition, these compartmental Schiff base ligands utilize two bonding coordination sites: N 2 -O 2 + O 2 -O 2 for transition metal ions and lanthanides as well as for alkali metal ions, resulted in the formation of discrete mononuclear, homo-showed a wide variety of potential applications ranging from mimic of biologically important molecules [8,27], biomedical field [5,24], catalysis [9,11,17,23,28] to magnetic materials [14,19,26,29,30,[33][34][35][36][37][38][39] and particularly in single molecular magnets (SMM) [26,[35][36][37]. The rich diversity of the Schiff base metal complexes constructed from 3-alkoxysalicylaldehyde led to the isolation of fascinating coordination compounds [14,[29][30]…”

“…In addition, these compartmental Schiff base ligands utilize two bonding coordination sites: N 2 -O 2 + O 2 -O 2 for transition metal ions and lanthanides as well as for alkali metal ions, resulted in the formation of discrete mononuclear, homo-showed a wide variety of potential applications ranging from mimic of biologically important molecules [8,27], biomedical field [5,24], catalysis [9,11,17,23,28] to magnetic materials [14,19,26,29,30,[33][34][35][36][37][38][39] and particularly in single molecular magnets (SMM) [26,[35][36][37]. The rich diversity of the Schiff base metal complexes constructed from 3-alkoxysalicylaldehyde led to the isolation of fascinating coordination compounds [14,[29][30][31][32][36][37][38][39]. Moreover, aside from the existence of two coordination sites in these compounds, they showed some selectivity towards the N2-O2 coordination sites at which 3d metal(II) (Mn 2+ , Ni 2+ , Cu 2+ , Zn 2+ ) and metal(III) (Mn 3+ , Fe 3+ ) are incorporated [6,14,18,[20][21][22]…”