Synthesis and Characterization of Hexaazamacrocyclic Complexes with Co(II), Ni(II), Cu(II), and Zn(II) Derived from Phthalaldehyde and 2,6‐Diaminopyridine

Synthesis, spectral characterization, catalytic and antibacterial activity of macrocyclic CuII compounds

“…The chemistry of macrocyclic Cu II compounds in particular is also important due to their catalytic [3] and biological applications [4]. In the literature, template synthesis of these compounds by the direct treatment of copper chloride and orthophthalaldehyde with diethylenetriamine [5], triethylenetetraamine [6], 2,6-diaminopyridine [7], hydrazine hydrate-formaldehyde [8] or orthophenylenediamine [9] in methanol medium were reported. In addition a macrocyclic Cu II compound was also derived by using 9,10-phenanthrenequinone instead of orthophthalaldehyde [10].…”

Hydrolysis of Letrozole catalyzed by macrocyclic Rhodium (I) Schiff-base complexes

“…The macrocyclic ligands (MLs) namely 7,8,17,18-tetrahydrodibenzo [f,n] [1,4,9,12] tetraazacyclohexadecine[HBACHD] (L1), Tetrabenzo[b,f,j,n] [1,4,9,12] 4 ] was used for the determination of magnetic susceptibilities of complexes in solid state at room temperature. The solvents were dried by standard procedures, distilled and stored over molecular sieves.…”

“…Literature study discloses that a little bit of work was done to synthesize Schiff bases from OPA by either template or non-template methods [10][11][12][13][14][15][16][17][18]. In previous work, we have reported the nontemplate synthesis of N-, O-, donor macrocycles, benzimidazo/indolo [1,2-c] quinazolines [19][20][21][22][23][24][25] and their metal complexes [14][15][16][26][27][28][29][30].…”

“…In previous work, we have reported the nontemplate synthesis of N-, O-, donor macrocycles, benzimidazo/indolo [1,2-c] quinazolines [19][20][21][22][23][24][25] and their metal complexes [14][15][16][26][27][28][29][30]. Still, the many of the existing OPA based macrocyclic metal compounds were synthesized by the direct treatment of OPA, diamine and metal salts [11,12]. Since, macrocyclic Rhodium (I) complexes are not synthesized by the initial preparation of macrocycle followed by its treatment with [Rh(COD)Cl] 2. In recent years, research towards the catalytic applications of macrocyclic metal complexes is rapidly increasing [26,27].…”

Synthesis and spectral studies of a 12-membered tetraimine macrocyclic ligand and its complexes

“…These macrocycles were used to study the complexation of diverse guests so as to provide new insight into non-covalent bonding interactions, chiefly cation pinteraction, which involves the stabilization of the positive charge by the face of an aromatic ring [15]. A variety of Schiff base macrocyclic complexes derived from dicarbonyl and diamine precursors have been reported from our laboratory [16][17][18]. Very few macrocycles have been synthesized by the condensation reaction between benzil and diamine subunits [19,20].…”