𝔖 Bobbio Scriptorium
✦   LIBER   ✦

[Co(g5-Me5C5)(g3-tBu2PPCH–CH3)] aus [Co(g5-Me5C5)(g2-C2H4)2] und tBu2P–P=P(Me)tBu2

✍ Scribed by H. Krautscheid; E. Matern; G. Fritz; J. Pikies

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
100 KB
Volume
625
Category
Article
ISSN
0372-7874

No coin nor oath required. For personal study only.

✦ Synopsis

von 1 bilden P1±P2±C1 einen Winkel von 90°. Die Teilstruktur Co, P1, P2, C1 von 1 entspricht einem ¹Butterflyª. Die Umsetzung von 2 mit einem Gemisch von t Bu 2 P±P=P(Me) t Bu 2 3 und t Bu±C≡P 5 fu È hrt zu den Verbindungen [Co(g 5 -Me 5 C 5 ){g 4 -( t BuCP) 2 }] 6 und 1, wobei sich 6 spontan bildet und 1 erst entsteht, wenn 5 verbraucht ist.

Coordination Chemistry of P-rich Phosphanes and Silylphosphanes. XVII

Abstract. [Co(g 5 -Me 5 C 5 )(g 3 -t Bu 2 PPCH±CH 3 )] 1 is formed in the reaction of [Co(g 5 -Me 5 C 5 )(g 2 -C 2 H 4 ) 2 ] 2 with t Bu 2 P±P 4 (generated from t Bu 2 P±P=P(Me) t Bu 2 3) by elimination of one C 2 H 4 ligand and coupling of the phosphinophosphinidene with the second one. The structure of 1 is proven by 31 P, 13 C, 1 H NMR spectra and the X-ray structure analysis. Within the ligand t Bu 2 P 1 P 2 C 1 H±CH 3 in 1, the angle P1±P2±C1 amounts to 90°. The Co, P1, P2, C1 atoms in 1 look like a ªbutterflyº. The reaction of 2 with a mixture of t Bu 2 P±P=P(Me) t Bu 2 3 and t Bu±C≡P 5 yields [Co(g 5 -Me 5 C 5 ){g 4 -( t BuCP) 2 }] 6 and 1. While 6 is spontaneously formed, 1 appears only after complete consumption of 5.

📜 SIMILAR VOLUMES

Synthese und Molekülstruktur des Diphosp
Synthese und Molekülstruktur des Diphosphaarsirans [{[(η5-C5Me5)(CO)2Fe]P}2As C6H2tBu3]
✍ Prof. Dr. Lothar Weber; Dagmar Bungardt; Uwe Sonnenberg; Dr. Roland Boese 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 216 KB 👁 1 views

Cycloaddukten. Bei hoherer Temperatur (ca. 60°C) polymerisieren die a-Methylen-p-lactone 9 . Wegen der hohen Gentoxizitat der analogen a-Methylen-y-butyrolactone, die Bestandteile zahlreicher Naturstoffe mit sehr unterschiedlichen biologischen Wirkungen sindI6l, sollten die cancerogenen Eigenschafte

Synthesis and Molecular Structure of the
Synthesis and Molecular Structure of the Diphosphaarsirane [{[(η5-C5Me5)(CO)2Fe]P}2AsC66H2tBu3]
✍ Prof. Dr. Lothar Weber; Dipl.-Chem. Dagmar Bungardt; Uwe Sonnenberg; Dr. Roland 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 389 KB 👁 1 views

40°C. Slow warm-up to room temperature, column chromatographic work-up (silica gel flash chromatography, elution with a 10 : 1 : 1 mixture of dichloromethane, petroleum ether (30-50°C) and diethyl ether), and Kugelrohr distillation (bath temperature 45 "C at 0.1 torr) afforded the a-methylene-p-lact