0000000001310396
AUTHOR
Bartłomiej Bereska
Triclinic conformational polymorph of N,N,N′,N′-tetrakis(2-cyanoethyl)-1,2-ethylenediamine (TCED)
Abstract The crystal and molecular structures of two polymorphs of N,N,N′,N′-tetrakis(2-cyanoethyl)-1,2-ethylenediamine have been characterized by X-ray diffraction along with density functional theory (DFT) studies. The molecules differ from each other by conformation. N,N,N′,N′-tetrakis(2-cyanoethyl)-1,2-ethylenediamine has been synthesized by cyanoethylation of ethylenediamine. Cyanoethylation of vicinal diamines is important for the synthesis of hyperbranched polymeric materials applied as catalysts, surfactants and encapsulating agents in drug delivery systems. The molecular geometry of N,N,N′,N′-tetracyanoethyl-1,2-ethylenediamine is similar to that of homologous compounds. DFT calcul…
Effect of Superbasic Ionic Liquids on the Synthesis of Dendritic PolyaminesviaAza-Michael Addition Reaction
Catalytic effect of selected superbasic ionic liquids on the yield and selectivity of aza-Michael addition of ethylenediamine and ammonia to acrylonitrile was investigated. The reactions were performed in calorimetric reactor equipped with RT-IR probe (real-time IR), where all energy changes associated with chemical reactions and physical transformations were monitored. Catalytic activity of selected superbasic ionic liquids in aza-Michael addition ethylenediamine and ammonia to acrylonitrile were determined and obtained polynitriles were then hydrogenatated to final three- and four-directional dendritic polyamines. The products were characterized by instrumental analytical methods, includi…
CCDC 1528272: Experimental Crystal Structure Determination
Related Article: Bartłomiej Bereska, Krystyna Czaja, Krzysztof Ejsmont, Błażej Dziuk, Bartosz Zarychta, Jolanta Iłowska, Michał Szmatoła, Agnieszka Bereska|2018|Z.Naturforsch.,B:Chem.Sci.|73|305|doi:10.1515/znb-2018-0015
CCDC 1528273: Experimental Crystal Structure Determination
Related Article: Bartłomiej Bereska, Krystyna Czaja, Krzysztof Ejsmont, Błażej Dziuk, Bartosz Zarychta, Jolanta Iłowska, Michał Szmatoła, Agnieszka Bereska|2018|Z.Naturforsch.,B:Chem.Sci.|73|305|doi:10.1515/znb-2018-0015