Single-Component White Light Emission from a Metal-Coordinated Cyclotriveratrylene-Based Coordination Polymer.

Area of Science:

• Materials Chemistry
• Inorganic Chemistry
• Solid-State Chemistry

Background:

• Coordination polymers offer versatile structures for diverse applications.
• Developing materials with tunable photoluminescence is crucial for advanced optical devices.

Purpose of the Study:

• To synthesize and characterize a new coordination polymer using a cyclotriveratrylene-based ligand and cadmium nitrate.
• To investigate the photoluminescent properties of the synthesized material, focusing on white light emission.

Main Methods:

• Solvothermal synthesis of the coordination polymer [Cd3L(H2O)3]·DMA·4H2O.
• Structural analysis of the 2D network formed by Cd-O clusters and the ligand.
• Photoluminescence spectroscopy to determine emission characteristics and tunability.

Main Results:

• The coordination polymer features a 2D structure built from hexanuclear Cd-O clusters and the hexacarboxy-methoxy-cyclotriveratrylene ligand.
• The material displays tunable photoluminescence, with significant white light emission observed for excitation wavelengths from 320 to 385 nm.
• Excitation at 385 nm yields a chromatic coordinate of (0.29, 0.34) and a color temperature of 7994 K, indicating cold white light.

Conclusions:

• The synthesized coordination polymer demonstrates efficient and tunable white light emission.
• The material's properties suggest potential applications in solid-state lighting and optoelectronics.
• The study highlights the role of coordination polymers in designing functional luminescent materials.