Science China Chemistry

, Volume 57, Issue 2, pp 248–251

Readily accessible rhodamine B-based photoresponsive material

Communications Special Issue · The Frontiers of Chemical Biology and Synthesis

DOI: 10.1007/s11426-013-5033-3

Cite this article as:
Li, K., Xiang, Y., Tong, A. et al. Sci. China Chem. (2014) 57: 248. doi:10.1007/s11426-013-5033-3

Abstract

A photochromic rhodamine B-based material containing Cd(II) as bridge was facilely prepared. The 4-methoxylsalicylaldehyde rhodamine B hydrazone Cd(II) complex displayed unusual ring-open response upon 365 nm UV irradiation, exhibiting long photochromic lifetime and good fatigue resistance. The UV-induced ring-open of the complex led to a distinct color and fluorescence change in acetonitrile. A new mechanism was put forward: salicylaldehyde part in the complex underwent UV-promoted isomerization from enol-form to keto-form, enhancing the chelation of Cd(II) and yielding the ring-opening rhodamine B part. Compared to other reported photochromic systems, this new photochromic material offered attractive new insights into the development of low cost photochromic materials with good performance.

Keywords

photochromismcoordination compoundrhodamine Bsalicylaldehyde hydrazonecadmiumUV-light

Supplementary material

11426_2013_5033_MOESM1_ESM.pdf (392 kb)
Supplementary material, approximately 392 KB.

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Chemistry, Beijing Key Lab Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Tsinghua UniversityBeijingChina
  2. 2.Department of Chemistry, Institute of Molecular Functional Materials, State Key Laboratory of Molecular NeuroscienceThe Hong Kong University of Science & TechnologyKowloon, Hong KongChina