首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Effects of Fluorine Substitution on the Microsolvation of Aromatic Azines: The Microwave Spectrum of 3-Fluoropyridine-Water
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Effects of Fluorine Substitution on the Microsolvation of Aromatic Azines: The Microwave Spectrum of 3-Fluoropyridine-Water

机译:氟取代对芳族叠氮微溶解的影响:3-氟吡啶-水的微波光谱

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摘要

The rotational spectra of the parent species and of four water isotopologues (-DOH, -HOD, -DOD, and -(HOH)-O-18) of the adduct 3-fluoropyridine-water have been investigated using pulsed supersonic-jet Fourier-transform microwave spectroscopy. From the rotational constants, the structure of the adduct was deduced where the water is linked to the aromatic ring through an intermolecular O-H center dot center dot center dot N hydrogen bond with a bond distance of 1.9961(5) angstrom and an O-H center dot center dot center dot N angle of 156.8(1)degrees. The shape of the complex is such that the water oxygen is in the plane of the aromatic ring, on the opposite side of fluorine, and forming a C-H center dot center dot center dot N weak hydrogen bond with the adjacent aromatic hydrogen.
机译:使用脉冲超音速喷射傅里叶分析了加合物3-氟吡啶-水的母体物种和四种水同位素(-DOH,-HOD,-DOD和-(HOH)-O-18)的旋转光谱。变换微波光谱。根据旋转常数推导加合物的结构,其中水通过分子间的OH中心点中心点中心点中心点N氢键与键环之间的键距为1.9961(5)埃和OH中心点中心键合到芳环上点中心点N角为156.8(1)度。配合物的形状使得水氧在芳族环的平面中,在氟的相反侧,并与相邻的芳族氢形成C-H中心点中心点中心点N弱氢键。

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