[Ga₂(DETA)(PO₄)₂]·2H₂O (DETA = Diethylenetriamine):  A Novel Porous Gallium Phosphate Containing 24-Ring Channels

Synthesis and characterization of two novel pyridine-containing framework gallium ethylenediphosphonates

“…3. The average Ga-O tetrahedral, Ga-OtrigonalÀbipyramidal and Ga-O octahedral bond distances of 1.811, 1.860 and 1.943 Å , respectively, agree well with those reported in other gallophosphate and gallium diphosphonates [23][24][25][26]. The Ga-F trigonalÀbipyramidal and Ga-F octahedral bond distances of 2.046(1), and 1.961(1) Å , respectively, agree well with those reported in other gallofluorophosphate and gallium diphosphonates [25,26].…”

SSZ‐53 and SSZ‐59: Two Novel Extra‐Large Pore Zeolites

“…Notable examples include ALPO-8 (AET, 14-membered ring or 14-ring, 7.9 î 8.7 ä), [4] VPI-5 (VFI, 18-ring, 12.1 ä), [5] cloverite (CLO, 20-ring, 13.2 î 4.0 ä), [6] JDF-20 (20-ring), the zincophosphate ND-1 (24-ring, 10.5 ä), [7] and the gallium phosphate NTHU-1 (24-ring, 10.4 ä). [8] Zhou et al have also prepared a germanate (FDU-4) [9] that possesses 24-ring pores (9.7 ä). Although a few of the phosphates have pore windows with 20 or more T atoms, their highly puckered apertures are actually more narrow than others observed in structures with fewer T atoms in their pore windows.…”

Two Novel Transition‐Metal Phosphite Compounds with 4‐, 6‐ and 12‐Membered Rings: Hydrothermal Syntheses, Crystal Structures and Magnetic Properties of Na2[M(HPO3)2] (M = Fe, Co)

“…[1] Although attention has focused initially on the phosphates of aluminium and gallium because of their structural similarities with zeolites and clays, numerous open-framework transitionmetal phosphates with novel properties are also known. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Besides, in the past few years, considerable efforts have been devoted to exploratory work on the possibilities of incorporating the phosphorus atom as a pseudo-pyramidal HPO 3 2-hydrogen phosphite group into extended structures and these studies have yielded a structurally diverse range of transition-metal phosphites, e.g. (VO)(HPO 3 )(H 2 O) 5 with isolated single chains, [18] ZnCa(HPO 3 ) 2 (H 2 O) 2 , [19] Fe(HPO 3 H) 3 , [20] M(HPO 3 )(H 2 O) (M = Co, Ni) [21] and (NH 4 ) 2 Zn 5 (HPO 3 ) 6 (H 2 O) 4 [22] with layered structures as well as NaM(H 2 PO 3 ) 3 (H 2 O) (M = Mn, Co), [23] [Zn 2 (H 2 O) 4 ]-(HPO 3 ) 2 (H 2 O), [24] Na 2 Zn 3 (HPO 3 ) 4 [24] and M 11 (HPO 3 ) 8 -(OH) 6 (M = Co, Ni, Zn) [25] with 3D structures.…”