Synthesis and structures of vanadium-cerium trinuclear complexes with schiff-base ligands

Masanobu Tsuchimoto, Toshio Ishii, Takane Imaoka, Kimihisa Yamamoto, Naoki Yoshioka, Yukinari Sunatsuki

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Abstract

A vanadium(V)-cerium(IV) trinuclear complex, [{V VO 2(L 1)} 2Ce IV] (1) (H 3L 1: N,N′-bis-3-ethoxysalicylidene-2-hydroxy-1,3- propanediamine), was prepared by the reaction of [V IVO(acac) 2] and [Ce III(acac) 3]·3H 2O with H 3L 1 in CH 3CN, followed by oxidation of the product in air. The structure of complex 1 was determined by X-ray crystal structure analysis. The complex has a V V-Ce IV-V V trinuclear structure with two dioxovanadium(V) moieties on each side of the cerium(IV) moiety. Complex 1 has two L 1 ligands to form a trinuclear structure. The basal oxo atoms of the dioxovanadium(V) moieties are coordinated to the cerium atom with Ce-O distances of 2.322(3) and 2.343(3) Å. The apical two non-coordinating oxo atoms are oriented to the same direction to form an endo structure. IR data of complex 1 show V=O stretching bands at 975 cm -1 for the apical non-coordinated oxo atoms and 802 cm -1 for the basal coordinated oxo atoms. The cyclic voltammogram of complex 1 in CH 3CN shows a quasi-reversible two-electron redox couple with E 1/2 = -0.60 V vs Fc/Fc +.

Original languageEnglish
Pages (from-to)1393-1397
Number of pages5
JournalBulletin of the Chemical Society of Japan
Volume79
Issue number9
DOIs
Publication statusPublished - 2006

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Cerium
Vanadium
Schiff Bases
Ligands
Atoms
Stretching
Crystal structure
X rays
Oxidation
Electrons
Air

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Synthesis and structures of vanadium-cerium trinuclear complexes with schiff-base ligands. / Tsuchimoto, Masanobu; Ishii, Toshio; Imaoka, Takane; Yamamoto, Kimihisa; Yoshioka, Naoki; Sunatsuki, Yukinari.

In: Bulletin of the Chemical Society of Japan, Vol. 79, No. 9, 2006, p. 1393-1397.

Research output: Contribution to journalArticle

Tsuchimoto, Masanobu ; Ishii, Toshio ; Imaoka, Takane ; Yamamoto, Kimihisa ; Yoshioka, Naoki ; Sunatsuki, Yukinari. / Synthesis and structures of vanadium-cerium trinuclear complexes with schiff-base ligands. In: Bulletin of the Chemical Society of Japan. 2006 ; Vol. 79, No. 9. pp. 1393-1397.
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abstract = "A vanadium(V)-cerium(IV) trinuclear complex, [{V VO 2(L 1)} 2Ce IV] (1) (H 3L 1: N,N′-bis-3-ethoxysalicylidene-2-hydroxy-1,3- propanediamine), was prepared by the reaction of [V IVO(acac) 2] and [Ce III(acac) 3]·3H 2O with H 3L 1 in CH 3CN, followed by oxidation of the product in air. The structure of complex 1 was determined by X-ray crystal structure analysis. The complex has a V V-Ce IV-V V trinuclear structure with two dioxovanadium(V) moieties on each side of the cerium(IV) moiety. Complex 1 has two L 1 ligands to form a trinuclear structure. The basal oxo atoms of the dioxovanadium(V) moieties are coordinated to the cerium atom with Ce-O distances of 2.322(3) and 2.343(3) {\AA}. The apical two non-coordinating oxo atoms are oriented to the same direction to form an endo structure. IR data of complex 1 show V=O stretching bands at 975 cm -1 for the apical non-coordinated oxo atoms and 802 cm -1 for the basal coordinated oxo atoms. The cyclic voltammogram of complex 1 in CH 3CN shows a quasi-reversible two-electron redox couple with E 1/2 = -0.60 V vs Fc/Fc +.",
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N2 - A vanadium(V)-cerium(IV) trinuclear complex, [{V VO 2(L 1)} 2Ce IV] (1) (H 3L 1: N,N′-bis-3-ethoxysalicylidene-2-hydroxy-1,3- propanediamine), was prepared by the reaction of [V IVO(acac) 2] and [Ce III(acac) 3]·3H 2O with H 3L 1 in CH 3CN, followed by oxidation of the product in air. The structure of complex 1 was determined by X-ray crystal structure analysis. The complex has a V V-Ce IV-V V trinuclear structure with two dioxovanadium(V) moieties on each side of the cerium(IV) moiety. Complex 1 has two L 1 ligands to form a trinuclear structure. The basal oxo atoms of the dioxovanadium(V) moieties are coordinated to the cerium atom with Ce-O distances of 2.322(3) and 2.343(3) Å. The apical two non-coordinating oxo atoms are oriented to the same direction to form an endo structure. IR data of complex 1 show V=O stretching bands at 975 cm -1 for the apical non-coordinated oxo atoms and 802 cm -1 for the basal coordinated oxo atoms. The cyclic voltammogram of complex 1 in CH 3CN shows a quasi-reversible two-electron redox couple with E 1/2 = -0.60 V vs Fc/Fc +.

AB - A vanadium(V)-cerium(IV) trinuclear complex, [{V VO 2(L 1)} 2Ce IV] (1) (H 3L 1: N,N′-bis-3-ethoxysalicylidene-2-hydroxy-1,3- propanediamine), was prepared by the reaction of [V IVO(acac) 2] and [Ce III(acac) 3]·3H 2O with H 3L 1 in CH 3CN, followed by oxidation of the product in air. The structure of complex 1 was determined by X-ray crystal structure analysis. The complex has a V V-Ce IV-V V trinuclear structure with two dioxovanadium(V) moieties on each side of the cerium(IV) moiety. Complex 1 has two L 1 ligands to form a trinuclear structure. The basal oxo atoms of the dioxovanadium(V) moieties are coordinated to the cerium atom with Ce-O distances of 2.322(3) and 2.343(3) Å. The apical two non-coordinating oxo atoms are oriented to the same direction to form an endo structure. IR data of complex 1 show V=O stretching bands at 975 cm -1 for the apical non-coordinated oxo atoms and 802 cm -1 for the basal coordinated oxo atoms. The cyclic voltammogram of complex 1 in CH 3CN shows a quasi-reversible two-electron redox couple with E 1/2 = -0.60 V vs Fc/Fc +.

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