García-Glez Jorge, Amghouz Zakariae, da Silva Iván, Ania Conchi O, Parra José B, Trobajo Camino, García-Granda Santiago
Departments of Organic and Inorganic Chemistry and Physical and Analytical Chemistry, University of Oviedo-CINN, 33006 Oviedo, Spain.
Scientific and Technical Services, University of Oviedo, 33006 Oviedo, Spain.
Chem Commun (Camb). 2017 Feb 14;53(14):2249-2251. doi: 10.1039/c6cc07518e.
TiO(PO)·2HO (1), a three-dimensional titanium oxophosphate, thermally transforms to TiO(PO) (2), a fibrous novel compound. The crystal structure of 2 was solved ab initio using powder X-ray diffraction data (triclinic, P1[combining macron], a = 5.0843(1) Å, b = 8.6121(2) Å, c = 9.6766(2) Å, α = 74.501(2)°, β = 76.146(2)°, γ = 74.488(3)°, Z = 2). Compound 2, containing both 4- and 6-fold coordinated titanium atoms, shows measurable thermally activated nitrogen-adsorption. To our knowledge, the process described here constitutes the first example of nitrogen-fixation by an inorganic material at above-ambient temperature.
TiO(PO)·2HO（1），一种三维钛氧磷酸盐，热转化为TiO(PO)（2），一种纤维状新型化合物。利用粉末X射线衍射数据从头算解析了2的晶体结构（三斜晶系，P1[上标横线]，a = 5.0843(1) Å，b = 8.6121(2) Å，c = 9.6766(2) Å，α = 74.501(2)°，β = 76.146(2)°，γ = 74.488(3)°，Z = 2）。化合物2含有4配位和6配位的钛原子，表现出可测量的热活化氮吸附。据我们所知，这里描述的过程构成了无机材料在高于环境温度下固氮的首个实例。
