ISSN:
1572-8854
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
,
Physik
Notizen:
Abstract The crystal structures, solid-state infrared patterns, and thermal properties of two polymorphs of 4′-nitrosalicylanilide are presented. In both polymorphs, intramolecular hydrogen bonds are found between the phenol oxygen and the amide proton, and intermolecular hydrogen bonds are found between the amide carbonyl oxygen and the phenol proton. These hydrogen bond patterns are compared to those found in other known salicylamide derivatives and an analysis is given of the factors contributing to preferences for intra- or intermolecular hydrogen bonds in these structures. Crystal data:α polymorph, orthorhombic,Pbca,a=11.003(4),b=27.959(7),c=7.622(5) Å,Z=4,V=2345(3) Å3, andR=0.038 (1351 reflections);β polymorph, monoclinic,P21/a,a=28.36(1),b=11.64(1),c=7.293(8) Å,β=90.68(6)°,Z=8,V=2408 Å3, andR=0.043 (2425 reflections).
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01161142
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