The Synthesis and Characterization of s‐Triazine‐Cored Tripodal Structure and Its Salen/Salophen‐Bridged Fe/Cr(III) Capped Complexes

Abstract

A novel Schiff base compound was synthesized, and its complexation properties with Fe(III) and Cr(III) were investigated. Tripodal ligand was synthesized by the reaction of s-triazine and 4-hydroxybenzaldehyde. Then a Schiff base involving 8-hydroxyquinoline was synthesized by the reaction of 5-aminomethyl-8-hydroxyquinoline (QN) and 2,4,6-tris(p-formylphenoxy)-1,3,5-triazine (TRIPOD) in methanol/chloroform media. The obtained Schiff base (QN-TRIPOD) was then reacted with four trinuclear Fe(III) and Cr(III) complexes including tetradentate Schiff bases N,N′-bis(salicylidene)ethylenediamine (salenH 2 )/bis (salicylidene)-o-phenylenediamine (SalophenH 2 ). The synthesized ligand and complexes were characterized by means of elemental analysis carrying out 1 H NMR, FTIR spectroscopy, thermal analyses, and magnetic susceptibility measurements. Finally, metal ratios of the prepared complexes were determined by using atomic adsorption spectrometry.

An overview on synthetic strategies for the construction of star-shaped molecules

“…Star-shaped conjugated molecules with quinolone side arms 367 and 368 were synthesized in good yields, using Suzuki coupling reaction of the appropriate boronic acid 364 with 5-bromo-8-methoxyquinoline 365 or 5bromo-8-methoxy-2-methylquinoline 366 in the presence of Na 2 CO 3 and Pd(PPh 3 ) 4 (Scheme 99) 112. Karatas and Ucan reported a synthesis of a tripodal Schiff base molecule with triazine core and quinoline side arms 370 in 70% yield through reaction of 5-aminomethyl-8hydroxylquinoline 369 with 2,4,6-tris(p-formylphenoxy)-1,3,5triazine 288 in the presence of acidic catalyst (Scheme 100) 137. 4.3.3.17.…”

Synthesis and Fluorescence Properties of Carbazole Based Asymmetric Functionalized Star Shaped Polymer

“…For the past decade, remarkable interest in the synthesis and characterization of compounds containing the s-triazine [1][2][3][4] ring have been observed. Molecules having s-triazine as a core have been widely used in industry because of their unique semiconducting, photophysical and electrochemical properties.…”

Donor-Acceptor Type Super-Structural Triazine Cored Conducting Polymer Containing Carbazole and Quinoline for High-Contrast Electrochromic Device

“…1,3,5 triazine ring used to form star-shaped [1][2][3][4] molecules have become the focus of research in recent times. Star-shaped polymer derivatives formed by this core structure have given some special advantage to the polymer structure.…”