Loading…

Controllable Reassembly of a Dynamic Metallocage: From Thermodynamic Control to Kinetic Control

A temperature‐ and anion‐induced coordination‐driven self‐assembly system based on a dynamic Ag6L4 metallocage was developed. Induced by SbF6− anions, both kinetically controlled [Ag3L2(SbF6)3]n and thermodynamically controlled [Ag2L2(SbF6)2]n can be reassembled from discrete Ag6L4(SbF6)6 metallocag...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry : a European journal 2017-01, Vol.23 (2), p.456-461
Main Authors: Liu, Luyao, Lyu, Guangxun, Liu, Caiping, Jiang, Feilong, Yuan, Daqiang, Sun, Qingfu, Zhou, Kang, Chen, Qihui, Hong, Maochun
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A temperature‐ and anion‐induced coordination‐driven self‐assembly system based on a dynamic Ag6L4 metallocage was developed. Induced by SbF6− anions, both kinetically controlled [Ag3L2(SbF6)3]n and thermodynamically controlled [Ag2L2(SbF6)2]n can be reassembled from discrete Ag6L4(SbF6)6 metallocages at 30 °C, and increasing the temperature to 40 °C results in selective inhibition of the kinetic product. Under the influence of BF4− anions, dynamic Ag6L4(BF4)6 metallocages self‐assemble into the thermodynamically controlled polycage at 25 °C, and lowing the temperature to 0 °C leads to selective inhibition of the thermodynamic product. Thus, both kinetically and thermodynamically controlled assembly processes in a dynamic system can be selectively driven by suitable external stimuli. Total control: Temperature‐ and anion‐induced self‐assembly of Ag6L4 metallocages was studied. Induced by SbF6− anions, both kinetically controlled [Ag3L2(SbF6)3]n and thermodynamically controlled [Ag2L2(SbF6)2]n can reassemble from discrete Ag6L4(SbF6)6 metallocages at 30 °C, and increasing the temperature to 40 °C results in selective inhibition of the kinetic product. Under the influence of BF4− anions, Ag6L4(BF4)6 metallocages self‐assemble into the thermodynamically controlled polycage at 25 °C, and lowing the temperature to 0 °C leads to selective inhibition of the thermodynamic product (see scheme; L=tris(isonicotinoxymethyl)ethane).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201604540