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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
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Luminescence Resonance Energy Transfer to Study Conformational Changes in Membrane Proteins Expressed in Mammalian Cells

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Boron-Oxo Cluster-Based Hydrogen-Bonded Framework for Luminescent Tuning.

Pan-Pan Zhao^1,2, Ze-Hao Qian^1,2, Xiang-Ming Zhang^1,2

¹College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China.

Inorganic Chemistry

|March 24, 2026

Summary

This summary is machine-generated.

A novel zinc boron-oxo cluster, BOC-23, enables simultaneous encapsulation of multiple luminescent guests. This unique host material tunes luminescence and enhances brightness, paving the way for advanced optical materials.

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Area of Science:

Materials Science
Inorganic Chemistry
Supramolecular Chemistry

Background:

Boron-oxo clusters are explored for their unique structural and functional properties.
Organic-inorganic hybrid materials offer tunable characteristics for advanced applications.
Luminescence modulation in host-guest systems is crucial for optical material development.

Purpose of the Study:

To synthesize and characterize a novel zinc boron-oxo cluster, BOC-23.
To investigate the host-guest properties of BOC-23, focusing on luminescence modulation.
To demonstrate the unique capability of BOC-23 for in situ encapsulation of multiple luminescent guests.

Main Methods:

Solvothermal synthesis using a dioxime ligand.
Structural characterization of the zinc boron-oxo cluster (BOC-23).
In situ encapsulation studies with various luminescent guests.
Photoluminescence spectroscopy to analyze luminescence tuning and enhancement.

Main Results:

A crystalline zinc boron-oxo cluster, BOC-23, was successfully synthesized.
BOC-23 forms a 3D hydrogen-bonded network, enhancing structural stability.
In situ encapsulation of multiple luminescent guests led to luminescence tuning (blue to red) and synergistic enhancement.
The DEAC@BOC-23 complex showed significant improvements in quantum yield and lifetime.

Conclusions:

BOC-23 represents a novel crystalline boron-oxo cluster host capable of in situ multi-guest encapsulation.
This work demonstrates effective luminescence modulation and enhancement through host-guest interactions in BOC-23.
The findings open avenues for designing advanced luminescent materials with tailored optical properties.