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ID 57808
Author
Yakubu, Abdallah Graduate School of Natural Science and Technology, Okayama University ORCID
Suzuki, Takayoshi Research Institute for Interdisciplinary Science, Okayama University ORCID Kaken ID publons researchmap
Kita, Masakazu Faculty of Education, Okayama University Kaken ID publons researchmap
Abstract
Four new homodinuclear lanthanoid(III) dithiocarbamato (RR'dtc(-)) complexes bridged by 2,2'-bipyrimidine (bpm) of the form [{Ln(RR'dtc)(3)}(2)(mu-bpm)] {Ln = Nd or Eu; RR' = dimethyl- (Me-2) or pyrrolidine(pyr)} were prepared and their crystal structures and spectroscopic properties were characterized. The crystallographic studies revealed that all of the complexes possess a similar structural motif with an 8:8-coordination geometry, in which the bpm ligand bridges two Ln(III) centers in the kappa N-2(1,1') : kappa N-2(3,3') mode and three RR'dtc(-) ligands coordinate to each Ln(III) center. The complexes exhibit weak but relatively sharp f-f transition bands in the absorption and magnetic circular dichroism (MCD) spectra recorded in the visible region. The MCD spectral studies demonstrated the magneto-optical behavior of the complexes. The spectral features of the dithiocarbamato complexes were distinctly different from those of their beta-diketonato analogues, suggesting the coordination environment around the Ln(III) center influences the electronic structure and spectroscopic symmetry of the complexes in solution.
Keywords
2,2 '-Bipyrimidine
Dithiocarbamate
Homodinuclear
Electronic structure
Magnetic circular dichroism
Note
This fulltext will be available in Aug 2021
Published Date
2019-08-12
Publication Title
Polyhedron
Volume
volume171
Publisher
PERGAMON-ELSEVIER SCIENCE
Start Page
515
End Page
522
ISSN
0277-5387
NCID
AA10531370
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
File Version
author
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1016/j.poly.2019.07.046
License
https://creativecommons.org/licenses/by-nc-nd/4.0/
Citation
Abdallah Yakubu, Takayoshi Suzuki, Masakazu Kita, Homodinuclear lanthanoid(III) dithiocarbamato complexes bridged by 2,2′-bipyrimidine: Syntheses, structures and spectroscopic properties, Polyhedron, Volume 171, 2019, Pages 515-522, ISSN 0277-5387, https://doi.org/10.1016/j.poly.2019.07.046.
Funder Name
Ministry of Education, Culture, Sports, Science and Technology
助成番号
18K05146