ic800436n_si_001.cif (18.8 kB)

Cyclodimers versus Cyclotrimers via Solvent or Temperature Effects on Metallacyclization

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posted on 07.07.2008 by Hyun Ji Kang, Tae Hwan Noh, Jong Sung Jin, Ok-Sang Jung
The reaction of (COD)PdCl2 (COD = 1,5-cyclooctadiene) with bis(3-pyridyl)methylphenylsilane (L) in acetone affords single crystals consisting of cyclodimers, [PdCl2(L)]2, whereas the reaction in a mixture of dichloromethane and ethanol yields amorphous spheres consisting of cyclotrimers, [PdCl2(L)]3. The interconversion and morphology control between the crystals and the microspheres can be explained by the difference in flexibility between the cyclodimer and cyclotrimer.

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