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Promotion of Tetrahedral Copper(I) Dimers by Chelation of 1,1'-Bis(diphenylphosphino)ferrocene (dppf). Crystal Structures of 2>(X = O2CH, I or NO3)

DOI: 10.1039/DT9940003451

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 3451 - 3458 (1994)

Update date:2022-08-05

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Authors:

Neo, Soh PingNeo, Soh Ping

Zhou, Zhong-YuanZhou, Zhong-Yuan

Mak, Thomas C. W.Mak, Thomas C. W.

Hor, T. S. AndyHor, T. S. Andy

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Article abstract of DOI:10.1039/DT9940003451

Treatment of Cu(NO3)2 with 1,1'-bis(diphenylphosphino)ferrocene (dppf) gave <2> which readily exchanged NaO2CH or KI to gave <2> or <2>.X-Ray structural analysis of the complexes revealed three tetrahedral copper(I) dimers with nitrate, iodide or formate preferentially in bridging and dppf consistently in chelating modes.The P-Cu-P chelate angle in the nitrate <117.8(1) deg> is the largest of known dppf chelates in all geometries.These structures are different from their triphenylphosphine analogues which are all monomers.Exchanges of the nitrate complex with other carboxylates gave <n> (R = Me, CF3, Et, n-Pr or Ph).It also reacted with a stoichiometric amount of dppf to give .The geometrical influence of PPh3, Ph2PCH2PPh2 and dppf, and their preferred bonding modes to Cu(I) in relation to the complex nuclearity, are discussed.

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Product name:Cu(CH2CH2CH3COO)(1,1'-bis(diphenylphosphino)ferrocene-P,P')

Cas No:160472-44-6

160472-44-6

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