Synthesis and molecular structure of N-[3-(p-bromophenyl)-1,2,4-oxadiazol-5-yl]methylphthalimide. III.

Springer Science and Business Media LLC - Tập 30 Số 2 - Trang 131-134 - 2000
Batista, Hildson1, Carpenter, Gene B.2, Srivastava, Rajendra M.1
1Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, PE, Brazil
2Department of Chemistry, Brown University, c, Providence, USA

Tóm tắt

The synthesis, spectroscopic studies and crystal structure of the title compound is described. The crystallographic studies showed that the p-bromophenyl group is very nearly coplanar with the 1,2,4-oxadiazole ring. The nearly planar phthalimide group makes an angle of about 98° with the bromophenyloxadiazole plane. Semi-empirical (AM1) and ab initio (STO-3G, 6-31G) molecular orbital calculations have been carried out for this compound and a comparison of bond angles, bond lengths and torsion angles has been made with the experimental values, which are remarkably close to each other. This compound crystallizes in the monoclinic space group P21/c with a = 13.6299(2),b = 13.9836(2), c = 8.4817(2) Å, β = 101.9070(10)°, V = 1581.79(5) Å3, and Z = 4.

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citation_journal_title=Heterocycl. Commun.; citation_author=R. Antunes, R.M. Srivastava; citation_volume=2; citation_publication_date=1996; citation_pages=247; citation_id=CR1

citation_journal_title=Bioorg. Med. Chem. Lett.; citation_author=R. Antunes, H. Batista, R.M. Srivastava, G. Thomas, C.C. Araujo; citation_volume=8; citation_publication_date=1998; citation_pages=3071; citation_id=CR2

citation_title=SADABS, Empirical absorption (and others) corrections; citation_publication_date=1996; citation_id=CR3; citation_author=G.M. Sheldrick; citation_publisher=Univ. of Goettingen

citation_journal_title=Acta Cryst.; citation_author=K. Mori, S. Kashino; citation_volume=C50; citation_publication_date=1994; citation_pages=807; citation_id=CR4

Lobanov, V. MOPAC 6.0, 32 bit Microsoft Windows, University of Florida, 1996.

Stewart J.J.P.; Frank J. Seiler Research Laboratory, U.S. Air Force Academy, MOPAC Manual, 6th Edition, 1990.

Gaussian 94(TM) based on the Gaussian 92 (TM). The original program was developed at Carnegie Mellon University, PA, U.S.A., 1993.