Highly Selective Colorimetric and Luminescence Response of a Square-Planar Platinum(II) Terpyridyl Complex to Aqueous TcO4-

被引：37

作者：

Chatterjee, Sayandev ^{[1
]}

Norton, Arnie E. ^{[2
]}

Edwards, Matthew K. ^{[1
]}

Peterson, James M. ^{[1
]}

Taylor, Stephen D. ^{[2
]}

Bryan, Samuel A. ^{[1
]}

Andersen, Amity ^{[3
]}

Govind, Niranjan ^{[3
]}

Albrecht-Schmitt, Thomas E. ^{[4
]}

Connick, William B. ^{[2
]}

Levitskaia, Tatiana G. ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA

[2] Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA

[3] Pacific NW Natl Lab, Environm & Mol Sci Lab, Richland, WA 99354 USA

[4] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

来源：

INORGANIC CHEMISTRY | 2015年 / 54卷 / 20期

基金：

美国国家科学基金会;

关键词：

SOLVENT-INDUCED AGGREGATION; METAL-METAL INTERACTIONS; SUPRAMOLECULAR RECOGNITION; ELECTRONIC SPECTROSCOPY; EXCITED-STATES; ANION; SALTS; QUANTIFICATION; COORDINATION; CRYSTALLINE;

D O I：

10.1021/acs.inorgchem.5b01664

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Molecular recognition of an aqueous pertechnetate (TcO4-) anion is fundamentally challenging partly due to the charge-diffuse nature of this anion, which hampers design of new technologies for its separation and detection. To address this gap, simple salts of transition metal complexes that undergo a distinct spectroscopic change upon exposure to aqueous anions were explored. The Pt(II) complex [Pt(tpy)-Br]SbF6 (tpy = 2,2';6',2 ''-terpyridine) undergoes a dramatic color change and intense luminescence response upon TcO4- uptake due to concomitant enhancement of Pt center dot center dot center dot Pt interactions. The spectroscopic response was highly selective and quantitative for aqueous TcO4- among other competing anions. Complementary Raman spectroscopy and microscopy techniques, structural determination, and theoretical methods were employed to elucidate the mechanism of this response at the molecular level.

引用

页码：9914 / 9923

页数：10

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