期刊
INORGANICS
卷 5, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/inorganics5010011
关键词
hybrid crown ether; siloxane; disilane; mismatch complex; host-guest chemistry
资金
- Deutsche Forschungsgemeinschaft (DFG)
Mismatched complexes of the alkali metals cations Li+ and Na+ were synthesized from 1,2-disila[18]crown-6 (1 and 2) and of K+ from 1,2,4,5-tetrasila[18]crown-6 (4). In these alkali metal complexes, not all crown ether O atoms participate in the coordination, which depicts the coordination ability of the C-, Si/C-, and Si-bonded O atoms. Furthermore, the inverse casethe coordination of the large Ba2+ ion by the relatively small ligand 1,2-disila[15]crown-5was investigated, yielding the dinuclear complex 5. This structure represents a first outlook on sandwich complexes based on hybrid crown ethers.
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