期刊
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
卷 -, 期 31, 页码 3579-3586出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201800551
关键词
Metallacycles; Self-assembly; Phosphines; Platinum; Palladium
资金
- department of Atomic Energy for the award
The self-assembly of 4,4-dipyridylditelluride/diselenide and M(OTf)(2) {M = cis-[Pt(PEt3)(2)](2+) or cis-[Pd(dppe)](2+); dppe = 1,2-bis(diphenylphosphino)ethane} yields [M(mu(2)-4,4-py(2)E(2))](n)(OTf)(2n) (E = Se, Te). The major and minor products, indistinguishable by simple proton NMR and phosphorus NMR spectroscopy, can be detected by heteronuclear (Se-77, Te-125, and Pt-195) NMR spectroscopy. The respective dimeric and trimeric structures are assigned by ESI and MALDI-TOF mass spectrometry, and for the first time, their equilibria have been established. The rhomboid shape of the dimeric complex containing the Pt-N bond is confirmed by its X-ray diffraction structure. The formation of the cluster-type minor product [Pd-3(mu-E)(2)(dppe)(3)](OTf)(2) has also been identified in the reactions of the Pd complexes.
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