Preparation, structure, and properties of tetranuclear vanadium(III) and (IV) complexes bridged by diphenyl phosphate or phosphate

Kyouhei Sato, Tetsuya Ohnuki, Haruka Takahashi, Yoshitaro Miyashita, Koichi Nozaki, Kan Kanamori*

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

8 被引用数 (Scopus)

抄録

Three novel tetranuclear vanadium(III) or (IV) complexes bridged by diphenyl phosphate or phosphate were prepared and their structures characterized by X-ray crystallography. The novel complexes are [{V(III) 2(μ- hpnbpda)} 2{μ-(C 6H 5O) 2PO 2} 2(μ-O) 2]•6CH 3OH (1), [{V(III) 2(μ-tphpn)(μ-η 3-HPO 4)} 2(μ-η 4-PO 4)](ClO 4) 3•4.5H 2O (2), and [{(V(IV)O) 2(μ-tphpn)} 2(μ-η 4-PO 4)](ClO 4) 3•H 2O (3), where hpnbpda and tphpn are alkoxo-bridging dinucleating ligands. H 3hpnbpda represents 2-hydroxypropane-1,3-diamino-N,N′-bis(2-pyridylmethyl)-N, N′-diacetic acid, and Htphpn represents N,N,N′,N′-tetrakis(2- pyridylmethyl)-2-hydroxy-1,3-propanediamine. A dinuclear vanadium(IV) complex without a phosphate bridge, [(VO) 2(μ-tphpn)(H 2O) 2](ClO 4) 3•2H 2O (4), was also prepared and structurally characterized for comparison. The vanadium(III) center in 1 adopts a hexacoordinate structure while that in 2 adopts a heptacoordinate structure. In 1, the two dinuclear vanadium(III) units bridged by the alkoxo group of hpnbpda are further linked by two diphenylphosphato and two oxo groups, resulting in a dimer-of-dimers. In 2, the two vanadium(III) units bridged by tphpn are further bridged by three phosphate ions with two different coordination modes. Complex 2 is oxidized in aerobic solution to yield complex 3, in which two of the three phosphate groups in 2 are substituted by oxo groups.

本文言語英語
ページ(範囲)5026-5036
ページ数11
ジャーナルInorganic Chemistry
51
9
DOI
出版ステータス出版済み - 2012/05/07

ASJC Scopus 主題領域

  • 物理化学および理論化学
  • 無機化学

フィンガープリント

「Preparation, structure, and properties of tetranuclear vanadium(III) and (IV) complexes bridged by diphenyl phosphate or phosphate」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル