Potassium trinickel(II) orthophosphate diphosphate, KNi3(PO4)P2O7
نویسندگان
چکیده
The structure of the title compound is characterized by the presence of two different anions, (PO4)(3-) and (P2O7)(4-) with an eclipsed conformation. The crystal structure consists of edge-sharing [NiO6] octa-hedra forming an [Ni3O14] chain running parallel to [001]. Adjacent chains are connected through edges and apices to PO4 and P2O7 groups in such a way as to build a three-dimensional host lattice. The resulting framework presents inter-secting tunnels running along [010] and [101] in which the 11-coordinated potassium cation is located. The crystal structure of this new phosphate probably represents a new structural type.
منابع مشابه
Na7Cr4(P2O7)4PO4
The title compound, hepta-sodium tetra-chromium(III) tetra-kis-(diphosphate) orthophosphate, was synthesized by solid-state reaction. Its structure is isotypic with that of Na7 M 4(P2O7)4PO4 (M = In, Al) compounds and is made up from a three-dimensional [(CrP2O7)4PO4](7-) framework with channels running along [001]. The three Na(+) cations are located in the voids of the framework. One of the c...
متن کاملHeptasodium tetraaluminium tetrakis(diphosphate) orthophosphate, Na7Al4(P2O7)4(PO4)
The asymmetric unit of title compound contains three Na(+), one Al(3+), three P(5+) and eight O(2-) atoms, with one Na(+) atom lying on a twofold rotation axis and one Na(+) and one P(5+) atom on fourfold rotoinversion axes. The fundamental building units of the title structure are isolated PO(4) tetra-hedra, AlO(6) octa-hedra and P(2)O(7) groups, which are further inter-locked by corner-sharin...
متن کاملThe first investigation of the synthetic mechanism and lithium intercalation chemistry of Li9Fe3(P2O7)3(PO4)2/C as cathode material for lithium ion batteries.
An iron-based mixed-polyanion compound, Li9Fe3(P2O7)3(PO4)2, is introduced as a possible cathode material for Li-ion batteries. Phase-pure Li9Fe3(P2O7)3(PO4)2 is successfully prepared by a sol-gel method, and its physicochemical properties are investigated in detail. Special attention is paid on making clear the variation of the phase composition with the annealing temperature and the effect of...
متن کاملCrystal structure of langbeinite-related Rb0.743K0.845Co0.293Ti1.707(PO4)3
Potassium rubidium cobalt(II)/titanium(IV) tris-(orthophosphate), Rb0.743K0.845Co0.293Ti1.707(PO4)3, has been obtained using a high-temperature crystallization method. The obtained compound has a langbeinite-type structure. The three-dimensional framework is built up from mixed-occupied (Co/Ti(IV))O6 octa-hedra (point group symmetry .3.) and PO4 tetra-hedra. The K(+) and Rb(+) cations are stati...
متن کاملHydrothermal-assisted synthesis of the Na7V4(P2O7)4(PO4)/C nanorod and its fast sodium intercalation chemistry in aqueous rechargeable sodium batteries.
Both high safety and low cost give aqueous rechargeable sodium-ion batteries (ARSB) the opportunity for application in stationary energy storage, but the low operating potential of the existing cathode materials limits its energy density. Here, we introduce a hydrothermal-assisted strategy to prepare the Na7V4(P2O7)4(PO4)/C nanorod and employ it as a novel high-property cathode material for ARS...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 70 شماره
صفحات -
تاریخ انتشار 2014