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- Title
Smart Transformation of a Polyhedral Oligomeric Silsesquioxane Shell Controlled by Thiolate Silver(I) Nanocluster Core in Cluster@Clusters Dendrimers.
- Authors
Li, Si; Wang, Zhao‐Yang; Gao, Guang‐Gang; Li, Bing; Luo, Peng; Kong, Yu‐Jin; Liu, Hong; Zang, Shuang‐Quan
- Abstract
Using polyhedral oligomeric silsesquioxane (POSS) modified by a thiol group as a protected ligand, atom‐precise multi‐heteorocluster‐based dendrimers Ag12@POSS6 (1 a and 1 b) were assembled. Through the reactive −SH groups, six POSS shell ligands stabilize the central 12‐core silver(I) cluster by diverse Ag−S interactions. When such Ag12@POSS6 complex was stimulated by different solvents (acetone or tetrahydrofuran), the core Ag12 silver(I) cluster underwent reversible structural transformation between flattened cubo‐octahedral (in 1 a) and normal cubo‐octahedral (in 1 b); concomitantly shell POSS clusters rearranged from pseudo‐octahedral to quasi‐octahedral. Furthermore, the film matrix modified by 1 a or 1 b showed different hydrophobicity.
- Subjects
SILICONES; SILICON polymers; TRANSITION metals; LIGAND exchange reactions; SILVER nanoparticles
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 39, p12957
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201807548