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ID 57500
著者
Yakubu, Abdallah Graduate School of Natural Science and Technology, Okayama University
Suzuki, Takayoshi Graduate School of Natural Science and Technology, Okayama University ORCID Kaken ID publons researchmap
Kita, Masakazu Faculty of Education, Okayama University Kaken ID publons researchmap
抄録
A series of Nd-III and Eu-III complexes containing achiral or chiral dithiocarbamato (dtc) ligands, [Ln(Xdtc)(3)(NN)] {Ln = Nd or Eu; X = dimethyl- (Me-2), pyrrolidine- (pyr), or (S)-prolinol- (S-proOH); NN = 1,10-phenanthroline (phen) or 2,2'-bipyridine (bpy)}, were prepared and their crystal structures and spectroscopic properties, in particular the natural circular dichroism (CD) and magnetic circular dichroism (MCD), were investigated. The crystal structures of the complexes analyzed by the X-ray diffraction method showed an 8-coordinate geometry around the Ln III center with comparable structural parameters to one another and to the related complexes reported previously. These complexes exhibited similar spectral patterns in their absorption, natural CD and MCD spectra in solution. Weak but characteristic sharp f-f transition bands were observed in the absorption and MCD spectra, but no CD signals associated with these transitions were observed even in the S-proOHdtc complexes. The MCD spectral pattern of the Eu-III complexes revealed a local C-2v symmetry around the Ln(III) center in solution, in contrast to the aqua and the analogous beta-diketonato Eu-III complexes.
キーワード
Dithiocarbamate
Lanthanoid
Crystal structures
Magnetic circular dichroism
(S)-prolinol dithiocarbamate
備考
This fulltext will be available in Oct 2020
発行日
2018-09-25
出版物タイトル
Inorganica Chimica Acta
484巻
出版者
Elsevier Science
開始ページ
394
終了ページ
401
ISSN
00201693
NCID
AA10761133
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.ica.2018.09.064
Citation
Abdallah Yakubu, Takayoshi Suzuki, Masakazu Kita, Syntheses and crystal structures of neodymium(III) and europium(III) complexes bearing dimethyl-, pyrrolidine-, or S-prolinol- dithiocarbamato ligands and their natural and magnetic circular dichroism spectra, Inorganica Chimica Acta, Volume 484, 2019, Pages 394-401, ISSN 0020-1693, https://doi.org/10.1016/j.ica.2018.09.064.
助成機関名
文部科学省
助成番号
18 K05146