Structure of a super base in tetrahydrofuran solution studied by 6Li, 1H HOESY, 133Cs, 1H HOESY, and MNDO. Evidence for discrete species rather than a mixed aggregate
Structure of a super base in tetrahydrofuran solution studied by 6Li, 1H HOESY, 133Cs, 1H HOESY, and MNDO. Evidence for discrete species rather than a mixed aggregate
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通过 6Li、1H HOESY、133Cs、1H HOESY 和 MNDO 研究四氢呋喃溶液中超级碱的结构。
DOI：
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发表时间：
1992
期刊：
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通讯作者：
L. Lochmann
中科院分区：
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作者：
W. Bauer;L. Lochmann
利用6 Li， 1 H HOESY和133 Cs， 1 H HOESY （HOESY=异核Overhauser效应光谱）以及1 H， 1 H ROESY （ROESY=旋转框架核Overhauser效应光谱）研究了三烷基锂（ph3cli）和3-乙基-3-七氧化二铯作为“超级碱”的模型组分。在25℃的thf - d8溶液中，单个物种部分（Ph 3cli）或定量（醇氧铯）以接触离子对的形式存在
Lithium trityl (Ph 3 CLi) and cesium 3-ethyl-3-heptoxide were studied as model components of a «super base» by using 6 Li, 1 H HOESY and 133 Cs, 1 H HOESY (HOESY=heteronuclear Overhauser effect spectroscopy), as well as by 1 H, 1 H ROESY (ROESY=rotating frame nuclear Overhauser effect spectroscopy). At 25 o C in THF-d 8 solution, the individual species are present partly (Ph 3 CLi) or quantitatively (cesium alkoxide) as contact ion pairs