Double aza[4,5]helicenes with a common naphthalene core: synthesis, crystal structure and optical properties

Novel double aza- and diaza[4,5]helicenes, the two helical units of which have a common naphthalene core, have been prepared through a five-step synthetic sequence using commercially available 2,3-dihaloazines (2,3-dibromopyridine, 2,3-dichloropyrazine and 2,3-dichloroquinoxaline) as starting materi...

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मुख्य लेखकों:	Demidov, O. P., Демидов, О. П.
स्वरूप:	Статья
भाषा:	English
प्रकाशित:	Royal Society of Chemistry 2025
विषय:	Naphthalene Phenanthrene Crystal lattices Absorption and fluorescence spectra Crystals structures Optics Property Synthetic sequence Uv-vis absorption spectrum X-ray Structure Ultraviolet radiation Synthesis (chemical) Absorption Fluorescence Drug development
ऑनलाइन पहुंच:	https://dspace.ncfu.ru/handle/123456789/31672
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विवरण
सारांश:	Novel double aza- and diaza[4,5]helicenes, the two helical units of which have a common naphthalene core, have been prepared through a five-step synthetic sequence using commercially available 2,3-dihaloazines (2,3-dibromopyridine, 2,3-dichloropyrazine and 2,3-dichloroquinoxaline) as starting materials. The X-ray structures, UV-vis absorption and fluorescence spectra of the helicenes were investigated and compared to those of the parent phenanthrene, single aza[4]- and [5]carbohelicenes, and a double [4,5]carbohelicene.

Double aza[4,5]helicenes with a common naphthalene core: synthesis, crystal structure and optical properties

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