start-ver=1.4
cd-journal=joma
no-vol=171
cd-vols=
no-issue=
article-no=
start-page=515
end-page=522
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20190812
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Homodinuclear lanthanoid(III) dithiocarbamato complexes bridged by 2,2��-bipyrimidine: Syntheses, structures and spectroscopic properties
en-subtitle=
kn-subtitle=
en-abstract=
kn-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. 
en-copyright=
kn-copyright=

en-aut-name=YakubuAbdallah
en-aut-sei=Yakubu
en-aut-mei=Abdallah
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SuzukiTakayoshi
en-aut-sei=Suzuki
en-aut-mei=Takayoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KitaMasakazu
en-aut-sei=Kita
en-aut-mei=Masakazu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=3
en-affil=Faculty of Education, Okayama University
kn-affil=
en-keyword=2,2 '-Bipyrimidine
kn-keyword=2,2 '-Bipyrimidine
en-keyword=Dithiocarbamate
kn-keyword=Dithiocarbamate
en-keyword=Homodinuclear
kn-keyword=Homodinuclear
en-keyword=Electronic structure
kn-keyword=Electronic structure
en-keyword=Magnetic circular dichroism
kn-keyword=Magnetic circular dichroism
END