Crystal Structures of Seven Terephthaldiamide Derivatives

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Bibliographische Detailangaben
Zeitschriftentitel:	Zeitschrift für Naturforschung B
Personen und Körperschaften:	Jones, P. G., Ossowski, J., Kus, P.
In:	Zeitschrift für Naturforschung B, 57, 2002, 8, S. 914-921
Format:	E-Article
Sprache:	Englisch
veröffentlicht:	Walter de Gruyter GmbH
Schlagwörter:	General Chemistry

Details
Zusammenfassung:	<jats:p>N,N′-Dibutyl-terephthaldiamide (1), N,N′-dihexyl-terephthaldiamide (2), N,N′-di(tert-butyl)- terephthaldiamide (3), N,N,N′,N′-tetrabutyl-terephthaldiamide (4), 1,1′-terephthaloylbis- pyrrolidine (5), 1,1′-terephthaloyl-bis-piperidine (6), and 4,4′-terephthaloyl-bis-morpholine (7) have been synthesised and physicochemically characterised. The X-ray structure determinations reveal imposed inversion symmetry for compounds 1-6; compound 3 has two independent molecules with inversion symmetry in the asymmetric unit. Compounds 1-3 form classical hydrogen bonds of the type N-H···O=C, leading to a ribbon-like arrangement of molecules (1 and 2) or a layer structure (3). Compound 3 also displays a very short C-H···O interaction, a type of hydrogen bond that is also observed in compounds 4-7, which lack classical donors; thereby compounds 4-6 form layer structures and 7 a complex threedimensional network.</jats:p>
Umfang:	914-921
ISSN:	1865-7117 0932-0776
DOI:	10.1515/znb-2002-0812