AIE-active boron complexes based on benzothiazole-hydrazone chelates.

Org Biomol Chem

Institute of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, No.1 Hunan Road, Liaocheng, 252000, People's Republic of China.

Published: July 2018

AI Article Synopsis

  • A new series of monoboron and bisboron complexes using benzothiazole-hydrazone chelates were developed, which show weak fluorescence in fluid solutions.
  • These complexes become fluorescent in high-viscosity environments or when aggregated due to reduced intramolecular rotation.
  • The study included X-ray diffraction and theoretical calculations to clarify the aggregation-induced emission (AIE) properties, and highlighted their significant Stokes shifts and efficient solid-state emission as promising for future applications.

Article Abstract

A new family of aggregation-induced emission (AIE)-active monoboron and bisboron complexes based on benzothiazole-hydrazone chelates was synthesized. These complexes showed very weak fluorescence in fluid solution due to active intramolecular rotation and were emissive in high-viscosity solvents or in the aggregation state. Single crystal X-ray diffraction analyses and theoretical calculations were carried out to explain AIE behavior. The large Stokes shifts (3590-7400 cm-1) and relatively highly efficient solid-state emission make these complexes valuable AIE luminophores for further potential applications.

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Source
http://dx.doi.org/10.1039/c8ob00755aDOI Listing

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