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ID 57808
著者
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
抄録
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.
キーワード
2,2 '-Bipyrimidine
Dithiocarbamate
Homodinuclear
Electronic structure
Magnetic circular dichroism
備考
This fulltext will be available in Aug 2021
発行日
2019-08-12
出版物タイトル
Polyhedron
171巻
出版者
PERGAMON-ELSEVIER SCIENCE
開始ページ
515
終了ページ
522
ISSN
0277-5387
NCID
AA10531370
資料タイプ
学術雑誌論文
言語
English
OAI-PMH Set
岡山大学
論文のバージョン
author
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.1016/j.poly.2019.07.046
ライセンス
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.
助成機関名
文部科学省
助成番号
18K05146