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- W2942831839 abstract "The photochemical reactions of the potentially tridentate ligand Triphos, (Ph2PCH2CH2)2PPh, with C5H5Mn(CO)3 and C5H5Mn(CO)2(CS) in benzene solution at 0° are described. The products of these reactions are C5H5Mn(CO) (Triphos) (two isomers) and C5H5Mn(CS)(Triphos) (two isomers), respectively. A similar reaction of the bidentate ligand Diphos, Ph2PCH2CH2PPh2, with C5H5Mn(CO)2(CS) in tetrahydrofuran solution at room temperature yields C5H5Mn(CS)(Diphos). The isomeric Triphos complexes are believed to be diastereomers resulting from the bidentate coordination of two of the adjacent phosphorus atoms on the Triphos ligand. The presence of one uncoordinated phosphorus atom in the complexes was demonstrated by their reactions with Cr(CO)5(THF) (THF = tetrahydrofuran) and C5H5Mn(CO)3 to form the bimetallic species, C5H5(CO)Mn(Triphos)Cr(CO)5, C5H5(CS)Mn(Triphos) Cr(CO)5, C5H5(CO)Mn(Triphos)Mn(CO)2C5H5 and C5H5(CS)Mn(Triphos)Mn(CO)2C5H5 by displacement of THF or CO. In addition, C5H5Mn(CS)(Triphos) reacts with ozone to give the phosphine oxide complex. C5H5Mn(CS)(Triphos=O). The absence of CS substitution in C5H5Mn(CO)2(CS) by Diphos and Triphos is yet another indication of the stronger metalcarbon bonding in metal thiocarbonyls as compared to metal carbonyls. The IR spectra of the new complexes in the ν(CO) and ν(CS) regions are reported. From a comparison of the low-frequency IR spectra of C5H5Mn(CS)(Diphos) and C5H5Mn(CS)(Triphos) with those of their carbonyl analogues, the δ(MnCS) modes have been assigned to the 555–530 cm−1 region." @default.
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- W2942831839 date "1974-10-01" @default.
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- W2942831839 title "Reactions of metal carbonyl complexes" @default.
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- W2942831839 doi "https://doi.org/10.1016/s0022-328x(00)90556-4" @default.
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