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Adducts of alcohols with ethers: The rotational spectrum of isopropanol-dimethyl ether

机译:醇与醚的加成物:异丙醇-二甲醚的旋转光谱

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摘要

The rotational spectra of three isotopologues of the isopropanol-dimethyl ether molecular complex have been measured with pulsed jet Fourier transform microwave spectroscopy. In the complex, isopropanol acts as a proton donor and takes a gauche conformation. The H → D isotopic substitution of the hydroxylic hydrogen participating in the O-H???O hydrogen bond produces an increase of the B and C rotational constants, according to the shrinkage of the O???O distance of about 7 m?, underlying and sizing the associated Ubbelohde effect.
机译:异丙醇-二甲醚分子配合物的三种同位素的旋转光谱已通过脉冲喷射傅立叶变换微波光谱法进行了测量。在该络合物中,异丙醇充当质子供体并具有gauche构象。参与OH-O氢键的羟基氢的H→D同位素取代使B和C旋转常数增加,这是由于O-O距离缩小约7 m 2所致。并调整相关的乌伯洛德效应。

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