Phosphine-substituted carbonyl halide complexes of chromium and molybdenum
A number of phosphine tetracarbonyl halide salts of the Group VI metals have been prepared of the type: cis-[Et4N][PR3M(CO)4X] where PR3 = (p-FC6H4)3P or (p-ClC6H4)3P, M = Cr or Mo for X = Cl, and M = Mo for X = Br, by the reaction of phosphines with the pentacarbonyl halides [Et4N][M(CO)5X]. A new method for the preparation of cis-[Formula: see text] complexes from the phosphine tetracarbonyl halides is described.Assignments are made for the bands in the carbonyl stretching region of the infrared spectra of these complexes.
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1967 ◽
Vol 23
(11)
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pp. 2701-2704
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1972 ◽
Vol 6
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pp. 284-290
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2002 ◽
Vol 106
(15)
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pp. 3819-3822
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1973 ◽
Vol 35
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pp. 755-759
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1987 ◽
Vol 91
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pp. 5594-5598
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