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Issue 48, 2017
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Accessing multimetallic complexes with a phosphorus(I) zwitterion

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Abstract

We present the synthesis of a zwitterionic triphosphenium molecule, tBu(C5H2)(PPh2)2PI (L), which can act as a single- or multidentate ligand with group 6, 7, 8 and 9 metal carbonyl complexes. Group 6, [M(CO)5L] complexes are formed under photolytic conditions, where the metal is bound at the P(I) center. In the case of Mo(CO)6, the bimetallic complex [M(CO)5LMo(CO)3] is generated, which features bonds to both the phosphorus(I) center and the cyclopentadienyl moiety of the molecule. Interestingly, group 7 and 9 metal carbonyl dimers generate bimetallic complexes in the form [M2(CO)nL], where both metal centers are bound at the phosphorus(I) center. A detailed analysis of these molecules is provided, including X-ray diffraction, multinuclear NMR, infrared spectroscopy and computational investigations.

Graphical abstract: Accessing multimetallic complexes with a phosphorus(i) zwitterion

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Publication details

The article was received on 12 Oct 2017, accepted on 21 Nov 2017 and first published on 23 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03844E
Citation: Dalton Trans., 2017,46, 17080-17092
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    Accessing multimetallic complexes with a phosphorus(I) zwitterion

    S. C. Kosnik, M. C. Nascimento, J. F. Binder and C. L. B. Macdonald, Dalton Trans., 2017, 46, 17080
    DOI: 10.1039/C7DT03844E

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