Fe(H₂O)₂BP₂O₈·H₂O, a First Zeotype Ferriborophosphate with Chiral Tetrahedral Framework Topology

Abstract

Fe(H2O)2BP2O8·H2O, an ordered zeotype hydrated ferriborophosphate, was synthesized by a mild hydrothermal method. Its structure was characterized by single-crystal X-ray diffraction which has ordered, alternating, vertex-sharing BO4, PO4, and FeO4(H2O)2 groups.

New zeotype borophosphates with chiral tetrahedral topology: (H)0.5M1.25(H2O)1.5[BP2O8]·H2O (M = Co(II) and Mn(II))

“…Bontchev reported a few organically templated vanadium borophosphates with cluster anions [22,23] [17].The topologies of these compounds display a close relationship to feldspar and gismondine. Our group reported the first zeotype ferriborophosphate Fe(H 2 O) 2 BP 2 O 8 .H 2 O with a chiral, tetrahedral framework topology [24]. Recently, Zhao's group reported a new family of zeolite tetrahedral framework borophosphate structure combining BeO 4 , BO 4 and PO 4 tetrahedra with the formula of M [BeBPO].H 2 O (M=K + , Na + and NH 4 + ) [25].…”

Crystal structure of lithium diaquacobalt(II) catena-monoborodiphosphate monohydrate, LiCo(H2O)2[BP2O8] ·H2O

“…The phosphate groups occupy the borders of the ribbons with two terminal oxygen atoms. Interatomic distances and angles within the tetrahedral helices are similar to related borophosphates [3][4][5][6][7][8][9][10][11][12]. Cobalt is six-fold coordinated by four oxygen atoms originating from four phosphate groups and two water molecules.…”

Crystal structure of hemicalcium diaquanickel(II) catena-(monoborodiphosphate) monohydrate, Ca0.5Ni(H2O)2[BP2O8] · H2O

“…The phosphate groups occupy the borders of the ribbons with two terminal oxygen atoms. Interatomic distances and angles within the tetrahedral helices are similar to related borophosphates [1][2][3][4][5][6][7][8]. The central channel is filled by a helix made up of water molecules.…”

“…The occupancy of the Ca1 site was refined freely and resulted in a value of 0.263 (5). In the final refinement cycles it was fixed to 0.25.…”