ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Reactions of Coordinated Ligands, VII. Syntheses and Reactions of Transition Metal Carbonyl Complexes of PH-Functional Di-, Tri-, and TetraphosphanesThe synthesis of complexes of PH-functional diphosphanes (CO)mM(PhPH—PR2)n (M=Mo, m = 4, 5, n = 2, 1, R=Ph, tBu; M=Fe, m = 4, n = 1, R=Ph) (7 - 10) and of 1,2,3-triphenyltriphosphane (CO)mM—PPhH—PPh—PPhH—M(CO)m (M=Mo, Fe, m = 5, 4) (13, 14) is reported. The availability of PH-functional groups as well as uncoordinated P-atoms in these compounds permits the formation of new P—P-bonds and of heterometallic complexes such as (CO)5Mo(PhPH—PPh2)Ni(CO)3 (16) or (CO)5Mo—PPhH—PPh[Ni(CO)3]PPhH—Mo-(CO)5 (17). The 1H- and 31P NMR spectra of the complexes 4 - 10 and 13 - 20 are discussed. For complexes of 1,1,2,3,3-pentaphenyltriphosphane, (Ph2P)2PPh—M(CO)m (M=Mo, Fe, m = 5, 4) the migration of the (CO)mM group from the medial to the terminal position of the P3-skeleton could be observed by means of 31P{1H} NMR spectroscopy.
Notes:
Die Synthese von Komplexen PH-funktioneller Diphosphane (CO)mM(PhPH—PR2)n (M=Mo, m = 4, 5, n = 2, 1, R=Ph, tBu; M=Fe, m = 4, n = 1, R=Ph) (7 - 10) und des 1,2,3-Triphenyltriphosphans (CO)mM—PPhH—PPh—PPhH—M(CO)m (M=Mo, Fe, m = 5, 4) (13, 14) wird beschrieben. Die Verfügbarkeit von PH-Funktionen sowie von nicht-koordinativ gebundenen P-Atomen in diesen Verbindungen erlaubt die Knüpfung weiterer P—P-Bindungen und die Bildung heterometallischer Komplexe, z. B. (CO)5Mo(PhPH—PPh2)Ni(CO)3 (16) oder (CO)5Mo—PPhH—PPh[Ni(CO)3]PPhH—Mo(CO)5 (17). Die 1H- und 31P-NMR-Spektren der Komplexverbindungen 4 - 10 sowie 13 - 20 werden diskutiert. Für Komplexe des 1,1,2,3,3-Pentaphenyltriphosphans, (Ph2P)2PPh—M(CO)m (M=Mo, Fe, m = 5, 4) (18, 19) konnte 31P{1H}-NMR-spektroskopisch die Wanderung der (CO)mM-Fragmente von der medialen in die terminale Position des P3-Gerüstes nachgewiesen werden.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19801130412
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