Kurtz et al., Justus Liebigs Annalen der Chemie, 1959, vol. 624, p. 1,19
作者:Kurtz et al.
DOI:——
日期:——
Three substituted 4-pyrazolylbenzoates: hydrogen-bonded supramolecular structures in one, two and three dimensions
作者:Jaime Portilla、Ernesto G. Mata、Manuel Nogueras、Justo Cobo、John N. Low、Christopher Glidewell
DOI:10.1107/s0108270106050360
日期:2007.1.15
The molecules of ethyl 4-(5-amino-3-methyl-1H-pyrazol-1yl) benzoate, C13H15N3O2, are linked by two independent N-H center dot center dot center dot O hydrogen bonds into a chain of edge-fused and alternating R-4(2)(8) and R-2(2)(20) rings. A combination of N-H center dot center dot center dot N and N-H center dot center dot center dot O hydrogen bonds links the molecules of methyl 4-(5-amino-3-tert-butyl-1H-pyrazol-1-yl) benzoate, C15H19N3O2, into sheets of alternating R-2(2)(20) and R-6(6)(32) rings. In 4-(5-amino-3-methyl-1H-pyrazol-1-yl) benzoic acid monohydrate, C11H11N3O2 center dot H2O, the molecular components are linked into a three-dimensional framework structure by a combination of five independent hydrogen bonds, two of O-H center dot center dot center dot N type and one each of O-H center dot center dot center dot O, N-H center dot center dot center dot O and N-H center dot center dot center dot N types.
ORLOV, V. D.;KIROGA, X.;KOLOS, N. N., XIMIYA GETEROTSIKL. SOED.,(1988) N 9, S. 1222-1225