ISSN:
0044-2313
Keywords:
Transition metal substituted diphosphenes and phosphaalkenes
;
hydration
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Transition Metal Substituted Diphosphenes. 32. Transition Metal Substituted Acyl Phosphanes and Phosphaalkenes. 16. Hydration of (η5-C5Me5)(CO)2Fe—P=P-Mes* (Mes* = 2,4,6-t-Bu3C6H2) and (η5-C5Me5)(CO)2Fe—P=C(SiMe3)2 with 1,1,1,3,3,3-Hexafluoropropane-2,2-diole Dihydrate. X-Ray Structure Analyses of (η5-C5Me5)(CO)2Fe—P(O)(H)(PHMes*) and (η5-C5Me5)(CO)2Fe—P(O)(H)[CH(SiMe3)2]The reaction of (η5-C5Me5)(CO)2Fe—P=C(SiMe3)2 (1) with an equimolar amount of 1,1,1,3,3,3 hexafluoropropane-2,2-diol-dihydrate (hexafluoroacetone-trihydrate) leads to the addition of water to the P=C bond under formation of the phosphinito complex (η5-C5Me5)(CO)2Fe—P(O)(H)[CH(SiMe3)2] (2). Similarly the diphosphenyl complex (η5-C5Me5)(CO)2Fe—P=P-Mes* (Mes* = 2,4,6-t-Bu3C6H2) (3) is converted into (η5-C5Me5)(CO)2Fe—P(O)(H)(PHMes*) 4. The NMR spectra of the latter show the presence of the two diastereoisomers 4a and 4b. Constitution and configuration of 2 · (CF3)2C(OH)2 and 4a · 2(CF3)2C(OH)2 in the crystal were elucidated by x-ray analysis.
Notes:
Bei der Reaktion von (η5-C5Me5)(CO)2Fe—P=C(SiMe3)2 (1) mit einer äquimolaren Menge an 1,1,1,3,3,3-Hexafluorpropan-2,2-diol-Dihydrat (Hexafluoraceton-Trihydrat) wird ein Wassermolekül an die P=C-Bindung unter Bildung des Phosphinito-Komplexes (η5-C5Me5)(CO)2FeP(O)(H)[CH(SiMe3)2] (2) angelagert. In ähnlicher Weise läßt sich der Diphosphenylkomplex (η5-C5Me5)(CO)2Fe—P=P-Mes* (Mes* = 2,4,6-t-Bu3C6H2) (3) in den Komplex (η5-C5Me5)(CO)2Fe—P(O)(H)(PHMes*) 4 überführen. Bei letzterem werden NMR-spektroskopisch die beiden Diastereoisomeren 4a und 4b unterschieden. Konstitution und Konfiguration von 2 · (CF3)2C(OH)2 und 4a · 2(CF3)2C(OH)2 wurden durch Einkristall-Röntgenstrukturanalysen ermittelt.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19936190521
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