Redetermination of the crystal structure of lead catena-polyphosphate, [Рb2(РО3)4]∞

Nickel Metaphosphate as a Conversion Positive Electrode for Lithium‐Ion Batteries

“…Ni(PO ) 2 crystallises in the monoclinic space group C2/c. [27] Its framework is comprised of NiÀ O chains (constructed by edgeshared [NiO 6 ] octahedra) and [P 4 O 12 ] rings (constructed by four corner-shared [PO 4 ] tetrahedra), as shown in Figure 1a. The asmade bulk powders of Ni(PO 3 ) 2 demonstrate high phase purity, as evidenced by the excellent Rietveld fit (R wp = 3.94 %) to XRD data.…”

Hydrothermal synthesis and characterization of a two-dimensional piperazinium cobalt–zinc phosphate via a metastable one-dimensional phase

“…S5). In O 2 -atmosphere, the final product of the decomposition is a complex mixture of (Co,Zn) 2 P 2 O 7 , (Co , Zn) 3 (PO 4 ) 2 and (Co , Zn) 2 P 4 O 12 (detected by PXRD) [46][47][48][49]; while, in N 2 -atmosphere this mixture contains an additional component: pyrolitic carbon. In inert atmosphere (N 2 ) and after the dehydration reaction has occurred, a complex process has been observed that includes both desorption and pyrolysis of piperazine with formation (at 600-800 1C) of a composite with high coal content.…”

Thecyclo-tetraphosphate Cd2P4O12, a member of the isotypic seriesM2P4O12(M= Mg, Mn, Fe, Co, Ni, Cu)

“…The structure of the low-temperature -modification of the catena-polyphosphate Cd(PO 3 ) 2 was refined by Bagieu-Beucher et al (1974). For isotypic M II 2 P 4 O 12 structures, see: Nord & Lindberg (1975) for M = Mg; Glaum et al (2002) for Mn; Nord et al (1990) and Genkina et al (1985) for Fe; Nord (1982) and Olbertz et al (1998) for Co; Nord (1983) and Olbertz et al (1998) for Ni;Laü gt et al (1972) for Cu. A review on the crystal chemistry of phosphates was published by Durif (1995).…”

“…Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ATOMS for Windows (Dowty, 2006); software used to prepare material for publication: SHELXL97. (Nord & Lindberg, 1975), Mn 2 P 4 O 12 (Glaum et al, 2002), Fe 2 P 4 O 12 (Nord et al, 1990;Genkina et al, 1985), Co 2 P 4 O 12 (Nord, 1982;Olbertz et al, 1998), Ni 2 P 4 O 12 (Nord, 1983;Olbertz et al, 1998) and Cu 2 P 4 O 12 (Laügt et al, 1972). During experiments intended for crystal growth of large single crystals of the low-temperature modification of cadmium catena-polyphosphate, α-Cd(PO 3 ) 2 (Bagieu-Beucher et al, 1974), single crystals of the title compound were obtained instead.…”