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Reactions of the Octahydrotriborate(1-) Anion, -, with Some Complexes of Cobalt(I), Cobalt(II), Rhodium(I), and Iridium(I), and the Characterization of the 'Borallyl' Complex III(η3-B3H7)(CO)H(PPh3)2>

DOI: 10.1039/DT9800000196

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 196 - 200 (1980)

Update date:2022-08-11

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Authors:

Greenwood, Norman N.Greenwood, Norman N.

Kennedy, John D.Kennedy, John D.

Reed, DavidReed, David

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Article abstract of DOI:10.1039/DT9800000196

The octahydrotriborate(1-) anion, -, reacts with amine and tertiary phosphine complexes of cobalt(I) and cobalt(II) halides to give arachno-triborane-ligand adducts, B3H7L, together with B2H4L2 and BH3L (where L = pyridine or tertiary phosphine).A similar reaction occurs with trans-I(CO)Cl(PPh3)2> and with I(CO)Cl(PPh3)2>.The latter complex also yields the novel 'borallyl' compound III(η3-B3H7)(CO)H(PPh3)2> which may also be described as a nido-iridatetraborane, <(IrB3H7)(CO)H(PPh3)2>.The spectroscopic properties and structure of this compound are discussed.The - ion does not react with I(CO)(dppe)2>+ but I(dppe)2>+ is converted into IIIH2(dppe)2>+ (dppe = Ph2PCH2CH2PPh2).

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