The structure of triniobium dinitride from zero electron kinetic energy photoelectron spectroscopy and density functional calculations
作者:Dong-Sheng Yang、Marek Z. Zgierski、Attila Bérces、Peter A. Hackett、Ana Martinez、Dennis R. Salahub
DOI:10.1016/s0009-2614(97)00885-3
日期:1997.10
geometry of the cluster was determined by comparing the experiments with density functional and Franck-Condon factor calculations. Both the neutral and cation have a three dimensional C2v symmetry with each of the two nitrogen bridging two niobium atoms of the metal isosceles triangle. The symmetric deformation of niobium vibrations in the ion has a frequency of 257 cm−1. The asymmetric niobium stretching
报道了Nb 3 N 2的零电子动能光电子能谱。通过将实验与密度泛函和Franck-Condon因子计算进行比较,确定了簇的几何形状。中性和阳离子都具有三维C 2v对称性,两个氮中的每个桥接金属等腰三角形的两个铌原子。离子中铌振动的对称变形的频率为257 cm -1。离子的非对称铌拉伸比中性离子大17 cm -1。离子中铌和氮之间的键合比中性键强。