Cage-rearranged and cage-intact syntheses of azido-functionalized larger T10 and T12 POSSs

Hui Wang; Ming-Xi Nie; Xiong Lin; Xiang-Qian Li; Hao Liu; Qing-Yun Guo; Di Han; Qiang Fu

doi:10.1039/d4dt00440j

Cage-rearranged and cage-intact syntheses of azido-functionalized larger T₁₀ and T₁₂ POSSs

Dalton Trans. 2024 Jun 4;53(22):9467-9472. doi: 10.1039/d4dt00440j.

Authors

Hui Wang¹, Ming-Xi Nie¹, Xiong Lin¹, Xiang-Qian Li², Hao Liu², Qing-Yun Guo², Di Han¹, Qiang Fu¹

Affiliations

¹ College of Polymer Science & Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China. handi@scu.edu.cn.
² Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, P. R. China. qg6@uakron.edu.

PMID: 38767505
DOI: 10.1039/d4dt00440j

Abstract

Herein, we investigate the product type and distribution during the synthesis of azido-functionalized larger polyhedral oligomeric silsesquioxanes (POSSs) using 3-chloropropyl- and chloromethyldimethylsilylethyl-functionalized T₈, T₁₀, and T₁₂ POSSs as precursors. Our findings indicate that cage rearrangement occurs for the 3-chloropropyl-functionalized POSS cages with a stability order of T₁₂ > T₁₀ > T₈, while the chloromethyldimethylsilylethyl-functionalized POSS cages remain structurally intact after the nucleophilic substitution.