X-ray crystallographic study of three (N?B)-borinates prepared from 8-hydroxyquinoline and 2-hydroxypyridine


Por: Höpfl H., Barba V., Vargas G., Farfan N., Santillan R., Castillo D.

Publicada: 1 ene 1999
Resumen:
8-Hydroxyquinoline and 2-hydroxypyridine have been reacted with diphenylborinic acid or 9-BBN; the molecular structure of the resulting heterocycles has been studied by X-ray crystallography. A structural comparison of the so formed five- and six-membered heterocycles with similar complexes obtained from aliphatic amino alcohol and ?-amino acid derivatives shows significant differences for the N?B, B-O and B-C bond lengths and some of the inner cycle bond angles. Other structural parameters discussed in this respect are the sum of bond lengths at the boron atom, the sum of bond angles in the heterocycle and the tetrahedral character of the boron atom. On the basis of these parameters a qualitative comparison of heterocycle stability is possible. ©1999 KluwerAcademic/Plenum Publishers.

Filiaciones:
Höpfl H.:
 Universidad Autónoma del Estado de Morelos, Centro de Investigaciones Quimicas, C. P. 62210 Cuernavacca, Mexico

Farfan N.:
 Departamento de Quimica, Centro de Investigación y de Estudios Avanzados del IPN, Apdo., C. P. 07000 México D. F., Mexico
ISSN: 00093122
Editorial
Springer New York LLC, 233 SPRING ST, NEW YORK, NY 10013 USA, Estados Unidos America
Tipo de documento: Article
Volumen: 35 Número: 8
Páginas: 912-927

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