Publication detail

Structural and magnetic characterization of Ni(II), Co(II), and Fe(II) binuclear complexes on a bis(pyridyl-triazolyl)alkane basis

GUSEV, A. NEMEC, I. HERCHEL, R. RIUSH, I. TITIŠ, J. BOČA, R. LYSSENKO, K. KISKIN, M. EREMENKO, I. LINERT, W.

Original Title

Structural and magnetic characterization of Ni(II), Co(II), and Fe(II) binuclear complexes on a bis(pyridyl-triazolyl)alkane basis

Type

journal article in Web of Science

Language

English

Original Abstract

Reactions of bis[5-(2-pyridyl)-1,2,4-triazol-3-yl]alkanes (alkane spacers = –CH2– in L2, –C3H6– in L3, –C4H8– in L4) with M(II)A2 salts (M = Ni, Co, Fe) resulted in the preparation of five series of mononuclear ([M(L2)(H2O)2]2+, 1a–c) or binuclear ([M2(L3)2(H2O)4]4+, 2a–c; ([M2(L4)2(H2O)4]4+, 3a–c, [M2(L3)2(μ-ox)]2+, 4a–c; [M2(L4)2(μ-ox)]2+, 5a–c) complexes. The crystal structures of ten complexes were determined by single-crystal X-ray crystallography. Magnetic properties of the compounds were characterized by SQUID magnetometry and were analyzed by fitting on a spin Hamiltonian model. It was revealed that Fe(II) and Co(II) compounds exhibit non-negligible anisotropy and in the case of 2a–c and 3a–c complexes weak ferromagnetic interactions between the metal centers were observed. In the case of complexes containing an {M2(μ-ox)}2+ core strong antiferromagnetic interactions were observed within the dimer. Remarkably, solid state luminescence of Co(II) and Fe(II) complexes (1b, 2b, 3b and 1c, 2c, 3c) was observed.

Keywords

COORDINATION CAGES; CORRELATION-ENERGY; BASIS-SETS; APPROXIMATION; PRINCIPLES; CHEMISTRY; LIGANDS; DESIGN

Authors

GUSEV, A.; NEMEC, I.; HERCHEL, R.; RIUSH, I.; TITIŠ, J.; BOČA, R.; LYSSENKO, K.; KISKIN, M.; EREMENKO, I.; LINERT, W.

Released

16. 7. 2019

ISBN

1477-9234

Periodical

Dalton Transactions

Year of study

48

Number

28

State

United Kingdom of Great Britain and Northern Ireland

Pages from

10526

Pages to

10536

Pages count

11

URL

https://pubs.rsc.org/en/content/articlelanding/2019/dt/c9dt01391a#!divAbstract

BibTex

@article{BUT157747,
  author="Alexey {Gusev} and Ivan {Nemec} and Radovan {Herchel} and Irina {Riush} and Ján {Titiš} and Roman {Boča} and Konstantin {Lyssenko} and Mikhail {Kiskin} and Igor {Eremenko} and Wolfgang {Linert}",
  title="Structural and magnetic characterization of Ni(II), Co(II), and Fe(II) binuclear complexes on a bis(pyridyl-triazolyl)alkane basis",
  journal="Dalton Transactions",
  year="2019",
  volume="48",
  number="28",
  pages="10526--10536",
  doi="10.1039/c9dt01391a",
  issn="1477-9234",
  url="https://pubs.rsc.org/en/content/articlelanding/2019/dt/c9dt01391a#!divAbstract"
}