Tripotassium dibismuth(III) tris[arsenate(V)], K₃Bi₂(AsO₄)₃

Abstract

Key indicatorsSingle-crystal X-ray study T = 293 K Mean '(As±O) = 0.007 A Ê R factor = 0.026 wR factor = 0.051 Data-to-parameter ratio = 12.7For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e. # 2004 International Union of Crystallography Printed in Great Britain ± all rights reservedThe title compound was prepared by a solid-state reaction at 1123 K. Its structure is closely related to that of alluaudite. The main structural feature is the presence of in®nite chains of edge-sharing Bi 2 O 10 dimers, which are linked by AsO 4 tetrahedra to form a framework enclosing two types of channels where K + cations reside. The X1 site of the alluaudite structure is occupied by K + , whereas the X2 site is empty.A projection of the structure of K 3 Bi 2 (AsO 4 ) 3 , viewed along the c axis.Colour key: BiO 6 polyhedra yellow and AsO 6 polyhedra blue.

Electrolytes and Interphases in Potassium Ion Batteries

“…[130] In addition to BASE, some ionic crystals with open frame works have been reported to have acceptable Kion conductivi ties that enabled by the structure of potassium ionic conductive channels, such as K 3 Cr 3 (AsO 4 ) 4 , KAlO 2 , K 3 Bi 2 (AsO 4 ) 3 , K 3 Bi 5 (AsO 4 ) 6 , K 0.405 Bi 0.865 AsO 4 and K 3 Sb 4 O 10 (BO 3 ). [131][132][133][134][135][136] How ever, it is rather challenging to develop highly ionicconductive solidstate conductors due to the complex relationship between ion transportation and atomic structures. Therefore, high throughput computational techniques were adopted to screen candidates from a wide variety of possibilities.…”

Synthesis, Single‐Crystal Structure, Dielectric Properties of a New Phosphate K3Bi6.5(PO4)7.5

“…[6] This activity seems accentuated in the case of Bi(3), since the oxygen atom O(17) of its environment is located at a distance of 2.10 Å, the bond is relatively short compared to those found usually in the bibliography. [14,16,17] The phosphorus tetrahedra are connected to the bismuth polyhedra by corners (Figure 5 and 6) and form a three-dimensional anionic framework [Bi 6.5 (PO 4 ) 7.5 ] 3-. The potassium atoms are located in tunnel the [101] direction.…”

“…[10] Bi-based materials are well known in the photocatalytic system. [11] In previous papers, we have investigated the ternaries systems A + 2 O-Bi 2 O 3 -P 2 O 5 and A + 2 O-Bi 2 O 3 -As 2 O 5 (A = Li + , Na + , K + ), and we have synthesized same new materials as single crystal such as Na 3 Bi 2 (AsO 4 ) 3 , [12] K 0.405 Bi 0.865 (AsO 4 ), [13] K 3 Bi 5 (AsO 4 ) 6 , [14] K 6 Bi 2 (P 2 O 7 ) 3 , [15] K 3 Bi 2 (AsO 4 ) 3 , [16] Rb 6 Bi 4 (PO 4 ) 2 (P 2 O 7 ) 3 , [17] K 3 Bi 2 (PO 4 ) 3 , [18] and Na 5 Bi 2 (AsO 4 )(As 2 O 7 ) 2 . [19] The structural diversity of this ternary system and the obtaining of novel crystal structures motivates us to continue research.…”

Synthesis, Structural Characterization, and Cation Transport of Tripotassium Pentabismuth Arsenate K3Bi5(AsO4)6

“…To our knowledge, in the system A-Bi-As-O (A = alkali metals) only two crystal structure investigations-on Na 5 Bi 2 (AsO 4 )(As 2 O 7 ) 9 2 and on 2458 C. Falah et al K 3 Bi 2 (AsO 4 ) 10 3 -have previously been reported. These compounds have a three-dimensional framework made up of corner-sharing BiO 6 octahedra and AsO 4 tetrahedra, with the A + ions located in interstitial spaces.…”