Detection of free monomeric silver(I) and gold(I) cyanides, AgCN and AuCN: microwave spectra and molecular structure.
Detection of free monomeric silver(I) and gold(I) cyanides, AgCN and AuCN: microwave spectra and molecular structure.
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DOI：
10.1021/ja808153g
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发表时间：
2009-08
影响因子：
15
通讯作者：
T. Okabayashi;Emi Y. Okabayashi;Fumi Koto;T. Ishida;M. Tanimoto
中科院分区：
文献类型：
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作者：
T. Okabayashi;Emi Y. Okabayashi;Fumi Koto;T. Ishida;M. Tanimoto
第11族金属氰化物体系的化学性质一直受到相当大的关注，因为在该体系中形成的某些络合物具有商业重要性。这些金属氰化物在固态下含有一维线性-M-CN-M-CN-M-链;然而，它们没有被观察到作为游离单体物质。本文报道了用旋转光谱首次在气相中检测到单体AgCN和AuCN。将银和/或金片放置在不锈钢阴极上与稀释在Ar中的CH 3CN的溅射反应导致产生AgCN和AuCN光谱。通过对母体和几种稀有同位素的光谱观察，可以确定AgCN的r（0）、r（s）、r（I）、r（m）（1）和r（m）（2）结构，以及AuCN的r（0）和r（s）结构。所有的数据表明，这两个物种有一个线性MCN的几何形状与低能量的弯曲振动。
The chemistry of the group 11 metal cyanide system has been of considerable interest because of the commercial importance of some of the complexes formed in this system. These metal cyanides contain one-dimensional linear -M-CN-M-CN-M- chains in the solid state; however, they have not been observed as free monomeric species. This Article reports the first detection of monomeric AgCN and AuCN in the gas phase by using rotational spectroscopy. The sputtering reaction of silver and/or gold sheets placed on a stainless steel cathode with CH3CN diluted in Ar resulted in the production of AgCN and AuCN spectra. Spectroscopic observation of the parent and several rare isotopic species allowed the determination of r(0), r(s), r(Iepsilon), r(m)(1), and r(m)(2) structures in the case of AgCN and r(0) and r(s) structures in the case of AuCN. All data indicate that these two species have a linear MCN geometry with a low-energy bending vibration.