Xu Qiang, Jiang Ling
National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan.
Inorg Chem. 2006 Oct 16;45(21):8648-54. doi: 10.1021/ic061105r.
Reactions of laser-ablated tin and lead atoms with nitric oxide molecules in solid argon and neon have been investigated using matrix-isolation infrared spectroscopy. In the argon experiments, absorptions at 1560.1, 1625.8, and 1486.7 cm(-1) are assigned to the N-O stretching vibrations of the SnNO and Sn(NO)2 molecules, and absorptions at 1541.9, 1630.0, 1481.8, and 1457.5 cm(-1) are assigned to the N-O stretching vibrations of the PbNO, Pb(NO)2, and PbNO- molecules on the basis of isotopic shifts and splitting patterns. The present neon experiments only produce neutral tin and lead mononitrosyls. Density functional theory calculations have been performed on these tin and lead nitrosyls. The good agreement between the experimental and calculated vibrational frequencies, relative absorption intensities, and isotopic shifts substantiates the identification of these nitrosyls from the matrix infrared spectra.
利用基质隔离红外光谱法研究了激光烧蚀的锡原子和铅原子与固态氩和氖中的一氧化氮分子的反应。在氩气实验中，1560.1、1625.8和1486.7 cm⁻¹处的吸收峰归属于SnNO和Sn(NO)₂分子的N - O伸缩振动，基于同位素位移和分裂模式，1541.9、1630.0、1481.8和1457.5 cm⁻¹处的吸收峰归属于PbNO、Pb(NO)₂和PbNO⁻分子的N - O伸缩振动。目前的氖气实验仅产生中性的锡和铅单亚硝酰化合物。已对这些锡和铅的亚硝酰化合物进行了密度泛函理论计算。实验和计算得到的振动频率、相对吸收强度以及同位素位移之间的良好一致性证实了从基质红外光谱中对这些亚硝酰化合物的鉴定。
