Structural Evaluation of the Aggregate of Palladium(II)-Pyridylazophenol Complex at the Heptane-Water Interface by the Centrifugal Liquid Membrane Method

IF 0.6 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Solvent Extraction Research and Development, Japan Pub Date : 2017-01-01 DOI:10.15261/SERDJ.24.105

A. Ohashi, Takafusa Kiminarita, H. Watarai

引用次数: 0

Abstract

2, 2017) The formation and aggregation of the Pd(II) complex with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (HL) at the heptane-water interface was investigated by UV-vis absorption and resonance Raman spectrometry using the centrifugal liquid membrane (CLM) method. The interfacial aggregate had an absorption maximum wavelength at 488 nm, showing a hypsochromic shift from the absorption maximum wavelength at 580 nm of the complex monomer (PdLCl). The critical aggregation concentration of PdLCl was determined to be 2.6  10 -10 mol cm -2 . The observed UV-vis absorption and resonance Raman spectra implied that the ligand in the interfacial aggregate was mainly in the state of azo form, because the spectra were very similar to those of the PdLCl complex obtained in a low-polarity solvent

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用离心液膜法评价钯(II)-吡啶偶氮酚配合物在庚烷-水界面上的聚集体结构

2, 2017)采用离心液膜(CLM)方法，采用紫外-可见吸收和共振拉曼光谱法研究了Pd(II)与2-(5-溴-2-吡啶偶氮)-5-二乙基氨基苯酚(HL)配合物在庚烷-水界面的形成和聚集。界面聚集体的最大吸收波长为488 nm，与络合单体(PdLCl)的最大吸收波长580 nm相比发生了次色移。PdLCl的临界聚集浓度为2.610 -10 mol cm -2。紫外-可见吸收光谱和共振拉曼光谱与低极性溶剂中得到的PdLCl配合物的光谱非常相似，表明界面聚集体中的配体主要处于偶氮态

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来源期刊

Solvent Extraction Research and Development, Japan 工程技术-工程：化工

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

1 months

期刊介绍： Solvent Extraction Research and Development, Japan (Solvent Extr. Res. Dev., Jpn.) is a periodical issued from Japan Association of Solvent Extraction (JASE) containing papers dealing with all aspects of solvent extraction and their related methods, underlying principles, and materials. Original articles, notes, technical reports, and critical reviews will be considered for publication. Original articles must be of reasonably broad scope and significance to the solvent extraction. Notes will originally describe novel work of a limited nature or especially significant work in progress. Authors can contribute some information of novel techniques, equipment or apparatus, reagents and diluents for solvent extraction as technical reports. Critical reviews will be received from the authors to whom the editorial committee asked to contribute.