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Rotational spectrum of a salt-containing van der Waals complex: Ar-NaCl

机译:含盐范德华配合物的旋转光谱:Ar-NaCl

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The first spectroscopic identification of a van der Waals complex containing salt, Ar-NaCl, has been reported. A cm-region rotational spectrum of the complex has been observed for the Cl-35 and Cl-37 isotopomers by using a Fourier-transform microwave spectrometer combined with a laser ablation nozzle source. The vibrationally averaged geometry of the complex is of the linear Ar Na-CI configuration, with the internuclear distance of R(Ar ... Na) = 2.887 Angstrom. An almost fully resolved hyperfine structure in low-J transitions has yielded precise nuclear quadrupole coupling constants associated with both Na and Cl nuclei, which indicate a substantial charge rearrangement in the NaCl molecule by complexation with Ar. (C) 1998 American Institute of Physics. [S0021-9606(98)03248-6]. [References: 32]
机译:已经报道了对含盐的Ar-NaCl的范德华复合物的首次光谱鉴定。通过使用傅立叶变换微波光谱仪结合激光烧蚀喷嘴源,观察到了Cl-35和Cl-37异构体的复合物的cm区域旋转光谱。配合物的振动平均几何形状为线性Ar Na-Cl构型,核间距离为R(Ar ... Na)= 2.887埃。低J跃迁中几乎完全解析的超精细结构产生了与Na和Cl核都相关的精确核四极偶合常数,这表明通过与Ar的络合,NaCl分子中的电荷大量重排。 (C)1998美国物理研究所。 [S0021-9606(98)03248-6]。 [参考:32]

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