The synthesis and characterization of [M(salen/salophen/saldeta)] [M=Cr(III), Mn(III) or Fe(III)] capped s-triazine cored tripodal trinuclear Schiff bases complexes

  • Berkman İşçi
  • Şaban UysalEmail author
Original Article


Ligand complexes ([M(salen/salophen)]2O, [M(saldeta)]Cl shortened as LC, M=Cr(III), Mn(III) or Fe(III)), have been synthesized. 2,4,6-tris(4-formylphenoxy)-1,3,5-triazine (3) was synthesized with the reaction of p-hydroxybenzaldehyde (2) and cyanuric chloride (1). 2,4,6-tris(4-(4′-carboxyphenylimino)phenoxy)-1,3,5-triazine (5) was synthesized with the reaction of 2,4,6-tris(4-formylphenoxy)-1,3,5-triazine (3) and 4-aminobenzoic acid (4). 2,4,6-tris(4-(4-carboxyphenylimino)phenoxy)-1,3,5-triazine was treated with SOCl2 in CH3CN, and 2,4,6-tris(4-(4′-chloroformylphenylimino)phenoxy)-1,3,5-triazine (6) was obtained. 2,4,6-tris(4-(4′-chloroformylphenylimino)phenoxy)-1,3,5-triazine was reacted with 4-aminobenzoic acid or 4-hydroxbenzoic acid in CH3CN, and 2,4,6-tris(4-(4′-(4′′-carboxyphenylamido)phenylimino)phenoxy)-1,3,5-triazine (8) and 2,4,6-tris(4-(4′-(4′′-carboxyphenylformato)phenylimino)phenoxy)-1,3,5-triazine (9) were obtained. s-Triazine cored tripodal trinuclear Schiff bases complexes were synthesized with the reaction of 8 and/or 9 and ligand complexes. The complexes have been characterized as low-spin (S = 1/2) distorted octahedral Fe(III)Salen/Salophen, low-spin (S = 1) distorted octahedral Mn(III)Salen/Salophen, high-spin (S = 5/2) distorted octahedral Fe(III)Saldeta, high-spin (S = 2) distorted octahedral Mn(III)Saldeta and (S = 3/2) distorted octahedral Cr(III)Salen/Salophen/Saldeta bridged by COO groups. The structure of all ligand and complexes were identified by using elemental analysis, thermal analyses (TGA-DTG), magnetic susceptibility, ESI-MS, ICP–AES, UV–Vis, 1H-NMR, 13C-NMR and FT-IR spectral data.

Graphical abstract


Cyanuric chloride Salen Salophen Saldeta Tripodal trinuclear complexes 



This study was produced from Berkman İşçi’s M. Sc. Thesis. The authors are grateful to Karabuk University Coordinator of Scientific Research Projects (Project No: KBÜBAP-17-YL-035) for financial support in order to carry on this research work.


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© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of SciencesKarabuk UniversityCampus of Demir-CelikTurkey

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