Mesogenic Enaminoketone Ni(II) Complexes of Phenazine and Quinoxaline Derivatives

Autor:	Jerzy Romiszewski, Joanna Kowalewska, Paulina Krzyczkowska, Adam Krówczyński, Jadwiga Szydłowska, Damian Pociecha
Rok vydání:	2012
Předmět:	Mesogen Phenazine Hexagonal phase General Chemistry Atmospheric temperature range Condensed Matter Physics Photochemistry chemistry.chemical_compound Crystallography Quinoxaline chemistry Liquid crystal Polar effect General Materials Science Columnar phase
Zdroj:	Molecular Crystals and Liquid Crystals. 558:93-101
ISSN:	1563-5287 1542-1406
DOI:	10.1080/15421406.2011.653714
Popis:	The new Ni(II) metallomesogenes were synthesized. Their mesogenic cores are constructed from tetradental enaminoketone unit connected to 1,2:3,4-di(4,5-dioctyloxybenzo)phenazine or 2,3-di(3,4-dioctyloxyphenylo)quinoxaline. The described compounds form columnar hexagonal phase (Colhd) in very broad temperature range. The high stability of the columnar phase results from presence of a permanent dipol moment in enaminoketone moieties created by strong electron withdrawing properties of carbonyl groups.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d3d5bba6f035cda0236f82c82b01de7 https://doi.org/10.1080/15421406.2011.653714 Zobrazit plný text záznamu