Synthesis, structure and properties of a five-coordinate oxophosphorus(V) meso-triphenylcorrole

Avijit Ghosh, Way-Zen Lee, Mangalampalli Ravikanth

研究成果: 雜誌貢獻文章

15 引文 (Scopus)

摘要

Treatment of six-coordinate (5,10,15-triphenylcorrole) dihydroxyphosphorus(V) [P(TPC)(OH) 2] with trifluoroacetic acid (TFA) in CH 2Cl 2 for 30 min at room temperature followed by recrystallization gave stable five-coordinate (5,10,15-triphenylcorrole) oxophosphorus(V) [P(TPC)O] in quantitative yield. The formation of [P(TPC)O] from [P(TPC)(OH) 2] in the presence of TFA was also monitored by NMR, absorption and fluorescence spectroscopic titration studies. The structure of the isolated [P(TPC)O] was confirmed by X-ray crystallography. In [P(TPC)O], the corrole ring is distorted, and the P V ion is displaced by 0.456 Å from the N 4 plane towards the axial oxygen atom. This is unlike six-coordinate (5,10,15-triphenylcorrole)dimethoxyphosphorus(V) [P(TPC)(OCH 3) 2], in which the P V ion lies in the porphyrin plane. NMR, absorption and fluorescence spectroscopy and electrochemical studies indicate that [P(TPC)O] exhibits interesting and distinct properties, which differ from the six-coordinate [P(TPC)(OCH 3) 2]. Attempts to reduce the P V complex [P(TPC)O] to its corresponding P III complex by treating it with LiAlH 4 resulted in the formation of six-coordinate (5,10,15-triphenylcorrole)dihydridophosphorus(V) [P(TPC)H 2].

原文英語
頁(從 - 到)4231-4239
頁數9
期刊European Journal of Inorganic Chemistry
發行號26
DOIs
出版狀態已發佈 - 2012 九月 1

指紋

Trifluoroacetic Acid
Ions
X ray crystallography
Porphyrins
Fluorescence spectroscopy
Titration
Absorption spectroscopy
Nuclear magnetic resonance spectroscopy
Fluorescence
Nuclear magnetic resonance
Oxygen
Atoms
Temperature
corrole
oligomycin sensitivity-conferring protein

ASJC Scopus subject areas

  • Inorganic Chemistry

引用此文

Synthesis, structure and properties of a five-coordinate oxophosphorus(V) meso-triphenylcorrole. / Ghosh, Avijit; Lee, Way-Zen; Ravikanth, Mangalampalli.

於: European Journal of Inorganic Chemistry, 編號 26, 01.09.2012, p. 4231-4239.

研究成果: 雜誌貢獻文章

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