New 1,2-disubstituted ferrocenyl stibines containing N-heterocyclic pendant arm: Sb-N hypervalent compounds |
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Authors: | AM Ortiz D Pérez Noé Rosas A Cabrera L Velasco A Toscano S Hernández |
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Institution: | Instituto de Química, Universidad Nacional Autonoma de México, 04510 México D.F., Mexico |
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Abstract: | New 1,2-disubstituted ferrocenyl stibines viz. containing -CH2NR or -CH2NHR pendant arm at the ortho-position have been synthesized and characterized by various physicochemical methods. These new ferrocenylstibines were prepared by the nucleophilic substitution reaction of diphenyl(N,N,N-trimethylaminomethylferrocenyl)iodide]stibine by different primary amines and secondary heterocyclic amines viz. furan-2-ylmethylamine, p-aminoacetophenone, 3-(1-hydroxyethyl)-aniline, 4-hydroxypiperidine, 1-ethylpiperazine and 4-(4-bromophenyl)-4-hydroxypiperidine. Molecular structure of stibine (2), (3), (5) and (7) have been determined by X-ray crystallography. Stibine (2), (5) and (7) show a weak hypervalent Sb-N interaction while stibine (3) does not show this interaction in solid state. |
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Keywords: | Stibine Ferrocenyl N-heterocyclic |
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