Journal
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
Volume 30, Issue 12, Pages 3057-3060Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.5012/bkcs.2009.30.12.3057
Keywords
Amphiphilic properties; Ionic palladium(II) complex; Submicrosphere; Surface modification
Categories
Funding
- Ministry of Knowledge Economy, Republic of Korea
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Ionic palladium(II) complex, [(Me(4)en)Pd(L)](2)(ClO4)(4) (Me(4)en = N,N,N',N'-tetramethylethylenediamine; L = bis-(4-(4-pyridylcarboxyl)phenyl)methane), allows to form a monodisperse submicrosphere without any template or additive. Surface-perchlorates on the submicrosphere have been exchanged by anionic pH indicators such as thymol blue, bromothymol blue, and bromocresol green. The ionic and amphiphilic properties of the palladium(II) complex appear to be primarily associated with the Formation and easy surface-anion exchange of submicrosphere. The surface-anion exchange through the electrostatic interaction is a very good tool for the surface-modification. The color of the pH indicator-exchanged submicrospheres is very sensitive to pH and Hg2+ cation, and thus they are promising to submicrospherical indicators.
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