Exploring the Effect of Surface Functionality on the Self‐Assembly of Polyoxopalladate Macroions. Issue 25 (12th May 2015)

• Record Type: Journal Article
• Authors: Haso, Fadi; Yang, Peng; Gao, Yunyi; Yin, Panchao; Li, Hui; Li, Tao; Kortz, Ulrich; Liu, Tianbo
• Is Part Of: Chemistry. Volume 21:Issue 25(2015)
• Page Start: 9048
• Page End: 9052
• Publication Date: 2015-05-12
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201500810
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The solution behavior of the two polyoxo‐13‐palladates(II) ([Pd^II₁₃As^V₈O₃₄(OH)₆]⁸⁻ and [Pd^II₁₃(As^VPh)₈O₃₂]⁶⁻) was studied in detail. We discovered that the countercation‐mediated attraction is the driving force for their self‐assembly into larger architectures. However, the presence of phenyl groups in the periphery of [Pd^II₁₃(As^VPh)₈O₃₂]⁶⁻ results in an enhanced attraction among these polyanions through hydrophobic interactions, which leads to completely different trends of assembly size for these two very similar clusters when decreasing solvent polarity. An increase of assembly size with increasing solvent polarity was observed for [Pd^II₁₃(As^VPh)₈O₃₂]⁶⁻, whereas for [Pd^II₁₃As ^V₈O₃₄(OH)₆]⁸⁻ it was the opposite, due to the absence of hydrophobic interactions.</p> </abstract>