Matrix infrared spectroscopy and quantum-chemical calculations for the coinage-metal fluorides: comparisons of Ar-AuF, Ne-AuF, and Molecules MF2 and MF3.
Matrix infrared spectroscopy and quantum-chemical calculations for the coinage-metal fluorides: comparisons of Ar-AuF, Ne-AuF, and Molecules MF2 and MF3.
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DOI：
10.1002/chem.201203306
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发表时间：
2013-01
期刊：
影响因子：
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通讯作者：
Xuefeng Wang;L. Andrews;Felix Brosi;S. Riedel
中科院分区：
文献类型：
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作者：
Xuefeng Wang;L. Andrews;Felix Brosi;S. Riedel
激光烧蚀的Au、Ag和Cu原子与F（2）在过量的Ar和氖中反应，在红外光谱的M-F伸缩区产生新的吸收峰，归属于金属氟化物物种。对于金，在混合氖/氩样品中确定了Ng-AuF键。然而，这种结合与AgF和CuF弱得多。根据Cu和Ag原子的同位素分布、三种金属氟化物的频率比较和理论频率计算，确定了分子MF（2）和MF（3）（M=Au，Ag，Cu）。AuF（5）分子的最强伸缩模和理论频率计算表明，AuF（5）分子的最强伸缩模为100 - 1000。观察到了形成Au（2）F（6）分子的其他证据。
The reactions of laser-ablated Au, Ag, and Cu atoms with F(2) in excess argon and neon gave new absorptions in the M-F stretching region of their IR spectra, which were assigned to metal-fluoride species. For gold, a Ng-AuF bond was identified in mixed neon/argon samples. However, this bonding was much weaker with AgF and CuF. Molecules MF(2) and MF(3) (M=Au, Ag, Cu) were identified from the isotopic distribution of the Cu and Ag atoms, comparison of the frequencies for three metal fluorides, and theoretical frequency calculations. The AuF(5) molecule was characterized by its strongest stretching mode and theoretical frequency calculations. Additional evidence was observed for the formation of the Au(2) F(6) molecule.