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Are There Hydrogen Bonds in Supercritical Water?

机译:超临界水中有氢键吗?

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The proton NMR chemical shift has been measured for water from 25 to 600 deg C and from 1 to 400 bar, conditions extending well beyond the critical point. Dilute solutes were employed as chemical shift references to avoid the effect of the varying magnetic susceptibility. The large changes in chemical shift (4.1 ppm) are interpreted as changes in the hydrogen bond network, because all other intermolecular interactions are known to result in much smaller effects.
机译:已经测量了水在25至600℃和1至400 bar的条件下的质子NMR化学位移,条件远远超出了临界点。稀溶质用作化学位移参考,以避免变化的磁化率的影响。化学位移的大变化(4.1 ppm)可以解释为氢键网络的变化,因为已知所有其他分子间相互作用都会产生较小的影响。

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