Expanding the scope of solvent-free synthesis: entrapment of thermally unstable species |
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| Authors: | Evgeny V Dikarev Marina A Petrukhina |
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| Institution: | a Department of Chemistry, University at Albany, State University of New York, Albany, NY 12222, USA
b Department of Chemistry, State University of New York, Stony Brook, NY 11794-3400, USA |
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| Abstract: | The use of the acetone monoadduct, Rh2(O2CCF3)4·(OCMe2)], instead of unligated dirhodium(II) tetrakis(trifluoroacetate) in sublimation-deposition reactions allowed us to study coordination of thermally sensitive 1,4-diiodo-1,3-butadiyne. A new mixed-ligand organometallic compound, Rh2(O2CCF3)4·(OCMe2)]2·(C4I2), has been isolated in crystalline form and shown by X-ray diffraction study to have an η2(1,2):η2(3,4)-bridging mode of diyne. This has demonstrated the donor ability of the diiodobutadiyne that was previously known to act as a π-acceptor through the Lewis acidic iodine atoms. This work has expanded the temperature limits of the solvent-free synthesis strategy for potential study of thermally unstable species. |
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| Keywords: | Dirhodium(II) carboxylate 1 4-Diiodo-1 3-butadiyne Crystal structures |
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