TY - JOUR

T1 - Synthesis, structure and magnetic properties of binuclear 3d-metal complexes of new 3-(2-pyridyl)-6-phenyl-1,2,4-triazine derivative

AU - Nemytov, Alexey I.

AU - Utepova, Irina A.

AU - Kiskin, Mikhail A.

AU - Efimov, Nikolay N.

AU - Fedin, Matvey V.

AU - Eremenko, Igor L.

AU - Musikhina, Alexandra A.

AU - Slepukhin, Pavel A.

AU - Chupakhin, Oleg N.

N1 - Funding Information: The ligand and complexes synthesis were funded by Russian Foundation for Basic Research (project number 20-43-660054). Single crystal X-ray analysis ( 2 ), the IR, NMR and mass-spectra, elemental analysis were supported by the Russian Science Foundation (project number 19-73-00243). Single crystal X-ray analysis ( 1 , 3 ), magnetic measurements ( 1 , 2 ) were performed using shared experimental facilities supported by IGIC RAS state assignment. Access to the EPR equipment was provided by Ministry of Science and Higher Education of Russia. Publisher Copyright: © 2020 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/1/1

Y1 - 2021/1/1

N2 - Novel non-symmetric tridentate N,N,O-ligand was obtained by direct substitution of hydrogen in 3-(2-pyridyl)-6-phenyl-1,2,4-triazine. Three binuclear cobalt(II), copper(II) and zinc(II) carboxylate complexes of 3-(2-pyridyl)-5-(2-hydroxynaphthalen-1-yl)-6-phenyl-1,2,4-triazine anion (HL1), [M2(Piv)2(L1)2] (M = Co, Cu, Zn; Piv = Me3CCO2-), were synthesized and characterized by elemental analysis and IR spectroscopy. The complexes structures were determined by single crystal X-ray diffraction analysis. The magnetic property studies indicate that cobalt(II) complex exhibits weak ferromagnetic coupling (J = 1.2(1) cm−1) between two high-spin Co(II) ions linked by double μ-O phenoxo bridges. According to magnetic property studies as well as X- and Q-band EPR spectra for copper(II) complex, the specific structure of the Cu2O2 fragment leads to the predominance of dipole–dipole interactions and weak antiferromagnetic coupling (J = -3.64(3) cm−1).

AB - Novel non-symmetric tridentate N,N,O-ligand was obtained by direct substitution of hydrogen in 3-(2-pyridyl)-6-phenyl-1,2,4-triazine. Three binuclear cobalt(II), copper(II) and zinc(II) carboxylate complexes of 3-(2-pyridyl)-5-(2-hydroxynaphthalen-1-yl)-6-phenyl-1,2,4-triazine anion (HL1), [M2(Piv)2(L1)2] (M = Co, Cu, Zn; Piv = Me3CCO2-), were synthesized and characterized by elemental analysis and IR spectroscopy. The complexes structures were determined by single crystal X-ray diffraction analysis. The magnetic property studies indicate that cobalt(II) complex exhibits weak ferromagnetic coupling (J = 1.2(1) cm−1) between two high-spin Co(II) ions linked by double μ-O phenoxo bridges. According to magnetic property studies as well as X- and Q-band EPR spectra for copper(II) complex, the specific structure of the Cu2O2 fragment leads to the predominance of dipole–dipole interactions and weak antiferromagnetic coupling (J = -3.64(3) cm−1).

KW - 1,2,4-triazine

KW - Binuclear complexes

KW - Magnetic properties

KW - Nucleophilic substitution of hydrogen

KW - BEHAVIOR

KW - CU(II)

KW - MCF-7

KW - ZN(II)

KW - CO(II)

KW - NI(II)

KW - ANTICANCER ACTIVITY

KW - LIGANDS

KW - TRIMETHYLACETATE COMPLEXES

KW - BSA-BINDING

UR - http://www.scopus.com/inward/record.url?scp=85096635406&partnerID=8YFLogxK

U2 - 10.1016/j.poly.2020.114901

DO - 10.1016/j.poly.2020.114901

M3 - Article

AN - SCOPUS:85096635406

VL - 193

JO - Polyhedron

JF - Polyhedron

SN - 0277-5387

M1 - 114901

ER -