Cargando…

Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound

Luminescence due to the d–f transition of Ce(3+) is quite rare in metal–organic complexes where concentrate quenching frequently occurs. One of the possible ways to avoid this is to design an architecture with elongated metal–metal distances. In the structure of the title complex, tri­aqua­tris­(1,1...

Descripción completa

Detalles Bibliográficos
Autores principales: Koizumi, Atsuya, Hasegawa, Takuya, Itadani, Atsushi, Toda, Kenji, Zhu, Taoyun, Sato, Mineo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5956343/
https://www.ncbi.nlm.nih.gov/pubmed/29850060
http://dx.doi.org/10.1107/S2056989018001135
_version_ 1783323870536663040
author Koizumi, Atsuya
Hasegawa, Takuya
Itadani, Atsushi
Toda, Kenji
Zhu, Taoyun
Sato, Mineo
author_facet Koizumi, Atsuya
Hasegawa, Takuya
Itadani, Atsushi
Toda, Kenji
Zhu, Taoyun
Sato, Mineo
author_sort Koizumi, Atsuya
collection PubMed
description Luminescence due to the d–f transition of Ce(3+) is quite rare in metal–organic complexes where concentrate quenching frequently occurs. One of the possible ways to avoid this is to design an architecture with elongated metal–metal distances. In the structure of the title complex, tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato-κ(2) O,O′)cerium(III), [Ce(C(5)H(4)F(3)O(2))(3)(H(2)O)(3)], the Ce(III) complex is linked to neighbouring ones by hydrogen bonding. Within the complex, the Ce(III) atom is coordinated by nine O atoms from three 1,1,1-tri­fluoro-4-oxo­pentan-2-olate (tfa) anions as bidentate ligands and three water mol­ecules as monodentate ligands. Thus, the coordination number of Ce(III) atom is nine in a monocapped square–anti­prismatic polyhedron. The F atoms of all three independent CF(3) groups in tfa are disordered over two positions with occupancy ratios of about 0.8:0.2. The inter­molecular hydrogen bonds between the ligands involve tfa–water inter­actions along the [110] and [1-10] directions, generating an overall two-dimensional layered network structure. The presence of the F atoms in the tfa anion is responsible for an increased inter­molecular metal–metal distance compared to that in the analogous acetyl­acetonate (acac) derivatives. Fluorescence from Ce(3+) is, however, not observed.
format Online
Article
Text
id pubmed-5956343
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher International Union of Crystallography
record_format MEDLINE/PubMed
spelling pubmed-59563432018-05-30 Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound Koizumi, Atsuya Hasegawa, Takuya Itadani, Atsushi Toda, Kenji Zhu, Taoyun Sato, Mineo Acta Crystallogr E Crystallogr Commun Research Communications Luminescence due to the d–f transition of Ce(3+) is quite rare in metal–organic complexes where concentrate quenching frequently occurs. One of the possible ways to avoid this is to design an architecture with elongated metal–metal distances. In the structure of the title complex, tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato-κ(2) O,O′)cerium(III), [Ce(C(5)H(4)F(3)O(2))(3)(H(2)O)(3)], the Ce(III) complex is linked to neighbouring ones by hydrogen bonding. Within the complex, the Ce(III) atom is coordinated by nine O atoms from three 1,1,1-tri­fluoro-4-oxo­pentan-2-olate (tfa) anions as bidentate ligands and three water mol­ecules as monodentate ligands. Thus, the coordination number of Ce(III) atom is nine in a monocapped square–anti­prismatic polyhedron. The F atoms of all three independent CF(3) groups in tfa are disordered over two positions with occupancy ratios of about 0.8:0.2. The inter­molecular hydrogen bonds between the ligands involve tfa–water inter­actions along the [110] and [1-10] directions, generating an overall two-dimensional layered network structure. The presence of the F atoms in the tfa anion is responsible for an increased inter­molecular metal–metal distance compared to that in the analogous acetyl­acetonate (acac) derivatives. Fluorescence from Ce(3+) is, however, not observed. International Union of Crystallography 2018-01-26 /pmc/articles/PMC5956343/ /pubmed/29850060 http://dx.doi.org/10.1107/S2056989018001135 Text en © Koizumi et al. 2018 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/
spellingShingle Research Communications
Koizumi, Atsuya
Hasegawa, Takuya
Itadani, Atsushi
Toda, Kenji
Zhu, Taoyun
Sato, Mineo
Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound
title Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound
title_full Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound
title_fullStr Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound
title_full_unstemmed Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound
title_short Structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(III) as a possible fluorescent compound
title_sort structure of tri­aqua­tris­(1,1,1-tri­fluoro-4-oxo­pentan-2-olato)cerium(iii) as a possible fluorescent compound
topic Research Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5956343/
https://www.ncbi.nlm.nih.gov/pubmed/29850060
http://dx.doi.org/10.1107/S2056989018001135
work_keys_str_mv AT koizumiatsuya structureoftriaquatris111trifluoro4oxopentan2olatoceriumiiiasapossiblefluorescentcompound
AT hasegawatakuya structureoftriaquatris111trifluoro4oxopentan2olatoceriumiiiasapossiblefluorescentcompound
AT itadaniatsushi structureoftriaquatris111trifluoro4oxopentan2olatoceriumiiiasapossiblefluorescentcompound
AT todakenji structureoftriaquatris111trifluoro4oxopentan2olatoceriumiiiasapossiblefluorescentcompound
AT zhutaoyun structureoftriaquatris111trifluoro4oxopentan2olatoceriumiiiasapossiblefluorescentcompound
AT satomineo structureoftriaquatris111trifluoro4oxopentan2olatoceriumiiiasapossiblefluorescentcompound