Light driven molecular lock comprises a Ru(bpy)2(hpip) complex and cucurbit[8]uril

Xiaona Yang; Jie Li; Song Jiang; Puhui Xie; Guoxing Liu; Xin Zheng; Zhanqi Cao; Xianfu Zheng; Dapeng Zou; Yangjie Wu; Wankai An

doi:10.1039/d0ra10940a

Light driven molecular lock comprises a Ru(bpy)₂(hpip) complex and cucurbit[8]uril

RSC Adv. 2021 Feb 23;11(15):8444-8449. doi: 10.1039/d0ra10940a.

Authors

Xiaona Yang^{1

2}, Jie Li¹, Song Jiang¹, Puhui Xie¹, Guoxing Liu¹, Xin Zheng¹, Zhanqi Cao¹, Xianfu Zheng¹, Dapeng Zou³, Yangjie Wu³, Wankai An¹

Affiliations

¹ The College of Sciences, Henan Agricultural University Zhengzhou 450002 Henan P. R. China jiangsong@henau.edu.cn zxf001001@126.com.
² Department of Basic, The PLA Information Engineering University Zhengzhou 450002 Henan P. R. China.
³ The College of Chemistry, Zhengzhou University Zhengzhou 450052 Henan P. R. China zdp@zzu.edu.cn.

Abstract

Here, complex 1 ([Ru(bpy)₂(hpip)]²⁺-MV²⁺) and CB[8] can form a stable 1 : 1 inclusion complex in aqueous solution, resembling a U-shaped conformation. Upon light irradiation, two complex 1 were reversibly locked through the formation of a MV˙⁺ radical dimer that is stabilized in the cavity of CB[8] with Ru complexes as blockers, in which complex 1 was transformed from a U-shaped conformation to a interlocked complex. This study provided a feasible strategy for the fabrication of a photo-driven supramolecular machine resembling a "lock".