ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Transition Metal-Substituted Diphosphenes, XIII. - On the Synthesis of (η5-C5Me5)(CO)(NO)Re—P=P—C6H2(tBu)3-(2,4,6) and (η5 C5Me5)(CO)(NO)[Cr(CO)5]P=P—C6H2(tBu)3-(2.4.6)Compound (η5-C5Me5)(CO)(NO)ReBr (3), generated from [η5-C5Me5)(CO)2-(NO)Re]BF4 and (Bu4N)Br, reacts with LiP(SiMe3)2 to give the disilylphosphido complex (η5-C5Me5)(CO)(NO)ReP(SiMe3)2 (4). Complex 4 is converted into the diphosphenyl complex (η5-C5Me5)(CO)(NO)Re—P=P—C6H2(tBu)3-(2,4,6) (5) by treatment with 2,4,6-(tBu)3C6H2PCl2. The reaction of 5, which is only stable in solution, with [(Z)-cyclooctene]Cr(CO)5 affords stable (η5-C5Me5)(CO)(NO)Re[Cr(CO)5]P=P—C6H2(tBu)3-(2,4,6) (7). For comparison, the complexes (η5-C5Me5)(CO)(NO)Mn[Cr(CO)5]P=P—C6H2(tBu)3-(2,4,6) (9) and (η5-C5Me5)(CO)2Fe[Cr(CO)5]P=P—C6H2(tBu)3-(2,4,6) (10) were synthesized as well. Compound 10 was characterized by an X-ray structure analysis.
Notes:
(η5-C5Me5)(CO)(NO)ReBr (3), hergestellt aus [η5-C5Me5)(CO)2-(NO)Re]BF4 und (Bu4N)Br, reagiert mit LiP(SiMe3)2 zum Disilylphosphidorheniumkomplex (η5-C5Me5)(CO)(NO)ReP(SiMe3)2 (4). Komplex 4 wird von 2,4,6-(tBu)3C6H2PCl2 in den nur in Lösung stabilen Diphosphenylkomplex (η5-C5Me5)(CO)(NO)Re—P=P—C6H2(tBu)3-(2,4,6) (5) übergeführt. Behandlung von 5 mit [(Z)-Cycloocten]Cr(CO)5 liefert das stabile Pentacarbonylchromderivat (η5-C5Me5)(CO)(NO)Re[Cr(CO)5]P=P—C6H2(tBu)3-(2,4,6) (7). Zu Vergleichszwecken wurden die Komplexe (η5-C5Me5)(CO)(NO)Mn[Cr(CO)5]P=P—C6H2(tBu)3-(2,4,6) (9) und (η5-C5Me5)(CO)2Fe[Cr(CO)5]P=P—C6H2(tBu)3-(2,4,6) (10) synthetisiert. Von 10 wurde eine Röntgenstrukturanalyse durchgeführt.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19881210507
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