title: The ability of a fibrous titanium oxophosphate for nitrogen-adsorption above room temperature.
abstract: Ti2O(PO4)2·2H2O (1), a three-dimensional titanium oxophosphate, thermally transforms to Ti2O(PO4)2(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.
authors.affiliation: Departments of Organic and Inorganic Chemistry and Physical and Analytical Chemistry, University of Oviedo-CINN, 33006 Oviedo, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: García-Glez
authors.affiliation: Scientific and Technical Services, University of Oviedo, 33006 Oviedo, Spain. amghouz.uo@uniovi.es.
authors.forename: Zakariae
authors.identifier: http://orcid.org/0000-0002-8635-2589
authors.initials: Z
authors.lastname: Amghouz
authors.affiliation: ISIS Facility, Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, UK.
authors.forename: Iván
authors.initials: I
authors.lastname: da Silva
authors.affiliation: ADPOR Group, Instituto Nacional del Carbón (INCAR, CSIC), 33011 Oviedo, Spain.
authors.forename: Conchi O
authors.initials: CO
authors.lastname: Ania
authors.affiliation: ADPOR Group, Instituto Nacional del Carbón (INCAR, CSIC), 33011 Oviedo, Spain.
authors.forename: José B
authors.initials: JB
authors.lastname: Parra
authors.affiliation: Departments of Organic and Inorganic Chemistry and Physical and Analytical Chemistry, University of Oviedo-CINN, 33006 Oviedo, Spain.
authors.forename: Camino
authors.initials: C
authors.lastname: Trobajo
authors.affiliation: Departments of Organic and Inorganic Chemistry and Physical and Analytical Chemistry, University of Oviedo-CINN, 33006 Oviedo, Spain.
authors.forename: Santiago
authors.initials: S
authors.lastname: García-Granda