Four- and eight-membered cyclic phosphazene derivatives of zirconium, titanium and vanadium. Crystal structures of the complexes [ZrCl3(Me3SiNPPh2NSiMe3)]·MeCN and [{TiCl2(OPPh2N)}2]·4MeCN
1991 | Zeitschriftenartikel. Eine Publikation mit Affiliation zur Georg-August-Universität Göttingen.
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Zitiervorschlag
Four- and eight-membered cyclic phosphazene derivatives of zirconium, titanium and vanadium. Crystal structures of the complexes [ZrCl3(Me3SiNPPh2NSiMe3)]·MeCN and [{TiCl2(OPPh2N)}2]·4MeCN
Witt, M.; Stalke, D. ; Henkel, T.; Roesky, H. W. & Sheldrick, G. M. (1991)
Dalton Transactions, pp. 663. DOI: https://doi.org/10.1039/DT9910000663
Dokumente & Medien
Details
- Autor(en)
- Witt, Michael; Stalke, Dietmar ; Henkel, Thomas; Roesky, Herbert W. ; Sheldrick, George M.
- Zusammenfassung
- The reaction of ZrCl4 with (Me3Si)2NPPh2NSiMe31 yields the four-membered heterocycle [[graphic omitted]SiMe3)]. An improved synthesis of the aminoiminophosphorane 1 is described. The compound TiCl4 reacts with Me3SiOPPh2NSiMe3 unexpectedly with elimination of all Me3p. groups to yield the eight-membered heterocycle [{TiCl2(OPPh2N)}2]. A vanadium-containing dimetallacyclophosphazene [{VCl2(NPPh2N)}2] has been synthesised from [VCl3(NSiMe3)] and CiPPh2NSiMe3. The X-ray structures of [[graphic omitted]SiMe3)]·MeCN and [{TiCl2(OPPh2N)}2]·4MeCN have been determined. While the cyclic Zr–N distances in the former have to be considered as single bonds, the short Ti–N of the latter (almost planar) suggest double-bond character.
- Erscheinungsdatum
- 1991
- Zeitschrift
- Dalton Transactions
- Organisation
- Fakultät für Chemie
- Dateiformat
- application/pdf
- Sprache
- Englisch