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doi:10.22028/D291-22525
Titel: | Synthesis, X-ray structures and reactivity of the first bis(amino)metallastibanes and bis(amino)metallabismuthanes |
VerfasserIn: | Caminade, Anne Marie Veith, Michael Huch, Volker Malisch, Wolfgang |
Sprache: | Englisch |
Erscheinungsjahr: | 1990 |
Quelle: | Organometallics. - 9. 1990, 6, S. 1798-1802 |
Kontrollierte Schlagwörter: | Röntgenkristallographie Kristallstruktur |
DDC-Sachgruppe: | 540 Chemie |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | The reaction of Me2Si(N-t-Bu)2ECl (E = Sb, Bi) with NaM(CO)nCp (M = Fe, Mo, W; Cp = ?5-C5H5) affords metallastibanes and bismuthanes, Cp(CO)nME(N-t-Bu)2SiMe2 (4a-c, 5a-c). The structures of 4c (E = Sb, M = W) and 5c (E = Bi, M = W) have been determined by X-ray crystallography. Both compounds are isotypic and isostructural and crystallize in the triclinic space group with a = 7.030 (9) A°, b = 10.51 (1) A°, c = 16.22 (2) A°, a = 94.1 (1)°, ß = 90.4 (1)°, ? = 104.9 (1)°, Z = 2 for 4c and a = 7.014 (9) A°, b = 10.57 (1) A°, c = 16.25 (2) A°, a = 94.1 (1)°, ß= 90.1 (1)°, ? = 104.6 (1)°, Z = 2 for 5c. The E-W s-bond lengths are 3.010 (1) A° for E = Sb and 3.082 (1) A° for E = Bi. The reaction of the antimony derivatives with Fe2(CO)9 yields [Fe(CO)4]Cp(CO)nMSb(N-t-Bu)2SiMe2 (6a-c) as a result of the complexation of the antimony lone pair. The crystal structures of 6a (M = Fe) and 6b (M = Mo) have been determined. 6a crystallizes in the monoclinic space group with a = 10.399 (9) A°, b = 16.76 (2) A°, c = 15.74 (1) A°, ß = 94.16 (6)°, and Z = 4. Both Sb-Fe bond lengths are almost similar: 2.547 (1) A° for the covalent bond and 2.530 (1) A° for the dative bond. 6b crystallizes in the monoclinic space group with a = 12.305 (7) A°, b = 13.812 (7) A°, c = 16.75 (1) A°, ß = 99.03 (5)°, and Z = 4. The Sb-Mo covalent bond length is 2.871 (1) A° and the Sb-Fe dative bond 2.539 (1) A°. |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291-scidok-18447 hdl:20.500.11880/22581 http://dx.doi.org/10.22028/D291-22525 |
Datum des Eintrags: | 5-Dez-2008 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Chemie SE - INM Leibniz-Institut für Neue Materialien |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes INM |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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ve199001.pdf | 667,07 kB | Adobe PDF | Öffnen/Anzeigen |
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