Анализ путей оптимизации научно-технического обеспечения оборонно-промышленного комплекса Украины

The analysis of ways to optimize scientific and technical support of the military-industrial complex of Ukraine is considered in the article. Main problems and perspective directions of technological development for military purposes are identified. The experience and capacity of higher education institutions in the implementation of scientific and technical developments in this field are studied.У статті проведено аналіз шляхів оптимізації науково-технічного забезпечення оборонно-промислового комплексу України. Визначено основні проблеми та перспективні напрямки розвитку технологій військового призначення. Проаналізовано досвід та можливості вищих навчальних закладів у виконанні науково-технічних розробок у даній сфері.В статье проведён анализ путей оптимизации научно-технического обеспечения оборонно-промышленного комплекса Украины. Определены основные проблемы и перспективные направления развития технологий военного предназначения. Проанализирован опыт и возможности высших учебных заведений в реализации научно-технических разработок в данной сфере

Synthesis and High Solid-State Fluorescence of Cyclic Silole Derivatives

Cyclotetrasiloxanes <b>1</b>–<b>3</b> containing different silole-based fluorogenic units (silafluorene, 1,3-diphenyl-9-silafluorene, tetraphenylsilole) were synthesized by cohydrolysis and condensation reactions. Their optical properties in solution and as crystals were studied. These compounds have low quantum yields in solution (Φ_fl = 0.01–0.18) with fluorescence maxima at 359–375 nm for silafluorene-containing compounds <b>1</b> and <b>3</b> and at 491 nm for AEE-active tetraphenylsilole compound <b>2</b>. However, <b>1</b>–<b>3</b> have high solid-state quantum yields (Φ_fl = 0.65–0.78) with fluorescence maxima at 377–390 nm for compounds <b>1</b> and <b>3</b> and at 517 nm for tetraphenylsilole- and silafluorene-containing compound <b>2</b>. Packing analysis of <b>1</b>–<b>3</b> in the crystal structure and MO and excited-state calculations were performed to explore possible fluorescence mechanisms in these compounds

Synthesis and High Solid-State Fluorescence of Cyclic Silole Derivatives

Cyclotetrasiloxanes <b>1</b>–<b>3</b> containing different silole-based fluorogenic units (silafluorene, 1,3-diphenyl-9-silafluorene, tetraphenylsilole) were synthesized by cohydrolysis and condensation reactions. Their optical properties in solution and as crystals were studied. These compounds have low quantum yields in solution (Φ_fl = 0.01–0.18) with fluorescence maxima at 359–375 nm for silafluorene-containing compounds <b>1</b> and <b>3</b> and at 491 nm for AEE-active tetraphenylsilole compound <b>2</b>. However, <b>1</b>–<b>3</b> have high solid-state quantum yields (Φ_fl = 0.65–0.78) with fluorescence maxima at 377–390 nm for compounds <b>1</b> and <b>3</b> and at 517 nm for tetraphenylsilole- and silafluorene-containing compound <b>2</b>. Packing analysis of <b>1</b>–<b>3</b> in the crystal structure and MO and excited-state calculations were performed to explore possible fluorescence mechanisms in these compounds