DOES AMMONIA HYDROGEN-BOND
DOES AMMONIA HYDROGEN-BOND
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DOI：
10.1126/science.238.4834.1670
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发表时间：
1987-12-18
期刊：
影响因子：
56.9
通讯作者：
KLEMPERER, W
中科院分区：
文献类型：
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作者：
NELSON, DD;FRASER, GT;KLEMPERER, W
氨 (NH3) 配合物立体化学的光谱表征有力地证实了一些长期以来关于 NH3 弱相互作用的观点，同时对其他观点提出了质疑。正如预期的那样，NH3 被观察为几乎通用的质子受体，甚至接受来自一些最弱质子供体的氢键。令人惊讶的是，没有发现证据支持 NH3 通过氢键充当质子供体的观点。对收集此类证据的工作以及涉及凝聚相观测的早期工作进行的批判性评估表明，NH3 可能最好被描述为一种强大的氢键受体，几乎没有贡献氢键的倾向。
Spectroscopic characterizations of the stereochemistry of complexes of ammonia (NH3) have strongly confirmed some long-held ideas about the weak interactions of NH3while casting doubt on others. As expected, NH3is observed to be a nearly universal proton acceptor, accepting hydrogen bonds from even some of the weakest proton donors. Surprisingly, no evidence has been found to support the view that NH3acts as a proton donor through hydrogen bonding. A critical evaluation of the work that has been done to gather such evidence, as well as of earlier work involving condensed-phase observations, suggests that NH3might well be best described as a powerful hydrogen-bond acceptor with little propensity to donate hydrogen bonds.