Infrared Spectra and Structures for Group 4 Dihydroxide and Tetrahydroxide Molecules
作者:Xuefeng Wang、Lester Andrews
DOI:10.1021/jp054482i
日期:2005.12.1
atoms react with H(2)O(2) molecules and with H(2) + O(2) mixtures to form M(OH)(2) and M(OH)(4) molecules, which are trapped in solid argon and identified from isotopic shifts in the infrared spectra. Electronic structure calculations at the MP2 level converge to almost linear M(OH)(2) and tetrahedral M(OH)(4) molecules and predict vibrational frequencies for mixed isotopic molecules of lower symmetry
和锆原子与H(2)O(2)分子和H(2)+ O(2)混合物反应形成M(OH)(2)和M(OH)(4)分子,它们被困在固体氩气,并根据红外光谱中的同位素位移确定。在MP2级别的电子结构计算会收敛到几乎线性的M(OH)(2)和四面体M(OH)(4)分子,并预测与实验测量结果非常吻合的低对称混合同位素分子的振动频率,从而证实了这一点。鉴定di和氢氧化锆及四氢氧化物分子。钛原子反应生成相同的产物分子,但是Ti(OH)(4)具有带有弯曲的Ti-OH键的S(4)结构,Ti(OH)(2)似乎接近线性,并且四价态更稳定HM(O)OH异构体对于Ti更为突出。