高温光活性卤素取代二氟化硼 β-二酮酸盐的合成、热学和光谱特性

IF 0.7 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-02-11 DOI:10.1134/S0036024424703059

U. V. Chervonova, A. A. Ksenofontov, M. S. Gruzdev

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摘要

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Synthesis, Thermal, and Spectroscopic Properties of High-Temperature Photoactive Halogen-Substituted Boron Difluoride β-Diketonate

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Synthesis, Thermal, and Spectroscopic Properties of High-Temperature Photoactive Halogen-Substituted Boron Difluoride β-Diketonate

The authors synthesized halogen-substituted aromatic β-diketone and BF₂-complex based on it. The temperatures of phase transitions and decomposition of the obtained samples are established. In contrast to the ligand with a 509.1 K (235.9°C) temperature of decomposition, the temperature stability rises to 690.3 K (417.1°C) for complexation with boron trifluoride etherate. Solutions of the complex in dichloromethane (DCM) are characterized by intense violet-blue fluorescence (QY_FL = 34%) with an emission maximum at 425 nm. This complex has green emission in the solid state, while the efficiency of solid-state fluorescence of the boron complex decreases to a 10% value of QY_FL.

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.