Silaimidazolium and silaimidazolidinium ions.
Silaimidazolium and silaimidazolidinium ions.
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硅咪唑鎓和硅咪唑啉鎓离子
DOI:
10.1039/c0dt00313a
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发表时间:
2010
影响因子:
4
通讯作者:
Thomas Müller
中科院分区:
文献类型:
--
作者:
Annemarie Schäfer;André Schäfer;Thomas Müller
2-Silaimidazolium ions 7 and 2-silaimidazolidinium ions 8 were synthesized by Lewis acid–base adduct formation between N-heterocyclic silylenes and silyl arenium ions. They were isolated in high yields as their [B(C6F5)4]− salts. These salts are stable at room temperature and were characterized by NMR spectroscopy supported by the results of density functional computations of molecular structures and NMR chemical shifts. NICS calculations suggest for the imidazolium ions 7 only a modest degree of aromaticity. Despite the bulkiness of the used substituents R1 and R2, silylium ions 7 and 8 behave as classical Lewis pairs and show no unexpected reactivity.
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DOI:
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发表时间:
1995
期刊:
影响因子:
--
作者:
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通讯作者:
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1971
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通讯作者:
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期刊:
影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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DOI:
--
发表时间:
2005
期刊:
Chem.Commun. 6
影响因子:
--
作者:
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通讯作者:
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