Chemical preparation and crystal data for two new condensed phosphates

2002 ◽  
Vol 17 (1) ◽  
pp. 23-24 ◽  
Author(s):  
S. Belaaouad ◽  
K. Sbai
Keyword(s):  
Unit Cell ◽  
Crystallographic Data ◽  
Crystal Data ◽  
Chemical Preparation ◽  
Cell Dimensions ◽  
Condensed Phosphates ◽  
Unit Cell Dimensions

Methods of chemical preparation and crystallographic data are reported for two new condensed phosphates: a hydrated cyclotriphosphate with a formula MnNa4(P3O9)2 4H2O and its anhydrous form MnNa4(P3O9)2. MnNa4(P3O9)2 4H2O is monoclinic P21/a with the following unit-cell dimensions: a=8.536(2) Å, b=14.309(3) Å, c=8.508(2) Å, β=96.452(2)°, and Z=2. MnNa4(P3O9)2 is monoclinic C2/c with the following unit-cell dimensions: a=13.198(2) Å, b=8.241(1) Å, c=14.228(2) Å, β=95.045(1)°, and Z=4.

Chemical preparation and crystal data for two condensed phosphates NiCs4(PO3)6 and NiK4(P3O9)2

2004 ◽  
Vol 19 (4) ◽  
pp. 375-377 ◽  
Author(s):  
Kacem Sbai ◽  
Said Belaaouad ◽  
Abdelkebir Kenz ◽  
El Mostafa Tace ◽  
Malika Tridane
Keyword(s):  
Unit Cell ◽  
Crystallographic Data ◽  
Crystal Data ◽  
Chemical Preparation ◽  
Space Group ◽  
Cell Dimensions ◽  
Condensed Phosphates ◽  
Unit Cell Dimensions

Methods of chemical preparation and crystallographic data are reported for two new condensed phosphates: a polyphosphate of nickel and cesium, NiCs4(PO3)6, and a cyclotriphosphate of nickel and potassium, NiK4(P3O9)2. NiCs4(PO3)6 is rhombohedral with the following unit-cell dimensions: a=b=11.602(1) Å, c=9.078(1) Å, space group P−31c, V=1058.24(1) Å3, and Z=2. NiK4(P3O9)2 is triclinic with the following unit-cell dimensions: a=6.143(8) Å, b=6.80(1) Å, c=12.80(3) Å, α=102.8(3)°, β=89.7(2)°, γ=66.03(7)°, space group P−1, V=473.56(3) Å3, and Z=1.

Chemical preparation and crystal data for two hydrated cyclotriphosphates SrMIP3O9⋅3H2O and their corresponding anhydrous SrMIP3O9 (MI=K+ and Tl+)

2003 ◽  
Vol 18 (3) ◽  
pp. 233-235 ◽  
Author(s):  
Kacem Sbai ◽  
Khadija El Kababi ◽  
Saïd Belaaouad
Keyword(s):  
General Formula ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
Chemical Preparation ◽  
Space Group ◽  
Cell Dimensions ◽  
Condensed Phosphates ◽  
Unit Cell Dimensions

Methods of chemical preparation and crystal data are reported for four new condensed phosphates: two hydrated cyclotriphosphates with a general formula SrMIP3O9⋅3H2O (MI=K+,Tl+) and their corresponding anhydrous cyclotriphosphates SrMIP3O9 (MI=K+,Tl+). The two hydrated condensed phosphates, SrKP3O9⋅3H2O and SrTlP3O9⋅3H2O, belong to previously investigated structure types. SrKP3O9⋅3H2O and SrTlP3O9⋅3H2O are orthorhombic, Z=4, space group Pnma, with respectively the following unit-cell dimensions: a=9.082(2) Å, b=8.133(2) Å, c=15.009(2) Å, M(20)=49, F(25)=61(0.0052;79) and a=9.115(7) Å, b=8.139(7) Å, c=15.221(2) Å, M(20)=285, F(30)=522(0.000 411;140). SrKP3O9 and SrTlP3O9 are monoclinic, space group P21/m or P21, Z=4, with, respectively, the following unit-cell dimensions: a=14.957(1) Å, b=8.372(1) Å, c=7.909(1) Å, β=102.27(1)°, M(20)=81, F(24)=95(0.000 025;92) and a=14.544(2) Å, b=8.639(1) Å, c=7.727(1) Å, β=102.05(1)°, M(20)=66, F(30)=78(0.003 098;125).

Chemical preparation and crystal data for two new cyclotriphosphates MIIK4(P3O9)2 (MII=Co2+ and Mn2+)

2003 ◽  
Vol 18 (3) ◽  
pp. 224-226 ◽  
Author(s):  
Kacem Sbai ◽  
Malika Tridane ◽  
Ali Abouimrane ◽  
Saïd Belaaouad ◽  
Abdelouahed Cherqaoui
Keyword(s):  
Unit Cell ◽  
Crystal Data ◽  
Chemical Preparation ◽  
Triclinic Space Group ◽  
Space Group ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

Methods of chemical preparation and crystal data are reported for two new anhydrous cyclotriphosphates MIIK4(P3O9)2 (MII=Co2+ and Mn2+). These anhydrous cyclotriphosphates CoK4(P3O9)2 and MnK4(P3O9)2 were obtained by total dehydration of corresponding hydrated cyclotriphosphates CoK4(P3O9)2.7H2O and MnK4(P3O9)2.2H2O. CoK4(P3O9)2 is triclinic, space group P−1, Z=1 with the following unit-cell dimensions: a=6.29(3) Å, b=8.00(1)Å, c=13.05(8)Å, α=86.03(5)°, β=98.00(1)°, γ=68.11(2)°. MnK4(P3O9)2 crystallizes in the rhombohedral system, space group P−31c, Z=2 with the following unit-cell dimensions: a=b=7.337(3)Å, c=19.920(1)Å.

Crystal data and X-ray powder diffraction data of 2,4-diiodo-4-nitrophenol (disophenol), C6H3I2NO3. More precise X-ray powder diffraction data of p-nitrophenol, C6H5NO3

1996 ◽  
Vol 11 (4) ◽  
pp. 301-304
Author(s):  
Héctor Novoa de Armas ◽  
Rolando González Hernández ◽  
José Antonio Henao Martínez ◽  
Ramón Poméz Hernández
Keyword(s):  
Powder Diffraction ◽  
Diffraction Data ◽  
Unit Cell ◽  
Crystal Data ◽  
Powder Diffraction Data ◽  
Space Group ◽  
X Ray ◽  
Cell Dimensions ◽  
Unit Cell Dimensions ◽  
Monoclinic Cell

p-nitrophenol, C6H5NO3, and disophenol, C6H3I2NO3, have been investigated by means of X-ray powder diffraction. The unit cell dimensions were determined from diffractometer methods, using monochromatic CuKα1 radiation, and evaluated by indexing programs. The monoclinic cell found for p-nitrophenol was a=6.159(2) Å, b=8.890(2) Å, c=11.770(2) Å, β=103.04(2)°, Z=4, space group P21 or P2l/m, Dx=1.469 Mg/m3. The monoclinic cell found for disophenol has the dimensions a=8.886(1) Å, b=14.088(2) Å, c=8.521(1) Å, β=91.11(1)°, Z=4, space group P2, P2, Pm or P2/m, Dx=2.438 Mg/m3.

Crystal Data for Complexes of Co(II) and Ni(II) Perchlorates with Mepirizole

1992 ◽  
Vol 7 (3) ◽  
pp. 166-168
Author(s):  
J.M. Amigó ◽  
L.E. Ochando ◽  
M.M. Reventós ◽  
J. García-Lozano ◽  
L. Soto-Tuero
Keyword(s):  
Powder Diffraction ◽  
Unit Cell ◽  
Crystal Data ◽  
Calculated Density ◽  
X Ray ◽  
Cell Parameters ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

AbstractMetal mepirizole perchlorates, M(C11H14N4O2)3 (C104)2 where M = Co(II) and Ni(II) have been investigated by means of X-ray powder diffraction. Unit cell dimensions were determined by indexing programs from diffractometer data. Refined cell parameters (monoclinic with a C-centered cell), calculated density and Z values are presented.

scholarly journals Chemical Preparation, Thermal Behavior and IR Studies of the New Chromium Diphosphate Hydrate and Crystal Structure of its Corresponding Anhydrous

2021 ◽  
Vol 11 (5) ◽  
pp. 13412-13420
Keyword(s):  
Thermal Behavior ◽  
Absorption Spectrometry ◽  
Unit Cell ◽  
Ir Absorption ◽  
X Ray Diffraction ◽  
Chemical Preparation ◽  
X Ray ◽  
Ir Studies ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

Chemical preparation, thermal behavior, and IR studies are given for the diphosphate Cr4(P2O7)3.28H2O and its anhydrous form Cr4(P2O7)3. Cr4(P2O7)3.28H2O, is monoclinic P2/m with the following unit-cell dimensions : a = 16.169(1)Å, b = 9.336(5)Å, c = 9.446(4)Å, β = 124.796(5)°, and Z = 4. The total dehydration of Cr4(P2O7)3.28H2O, between 90°C and 450°C, leads to its anhydrous form, Cr4(P2O7)3. Cr4(P2O7)3 is isotopic to V4(P2O7)3, crystallizing in the orthorhombic system, space group Pmcn, Z = 4 with the following unit-cell dimensions: a = 7.25(2), b = 9.38(1)Å and c = 21.00(4)Å. Cr4(P2O7)3 is stable until its melting point at 1050°C. The thermal behavior of Cr4(P2O7)3.28H2O has been investigated and interpreted by comparison with IR absorption spectrometry and X-ray diffraction experiments.

Crystal Data for Metal Cimetidine Isotiocionates: M(CM)2(NCS)2 (M = Co(II), Ni(II), Cu(II))

1992 ◽  
Vol 7 (4) ◽  
pp. 231-235
Author(s):  
J.M. Amigó ◽  
L.E. Ochando ◽  
M.M. Reventós ◽  
M.A. Martínez ◽  
L. Soto-Tuero ◽  
...  
Keyword(s):  
Powder Diffraction ◽  
Unit Cell ◽  
Crystal Data ◽  
Primitive Cell ◽  
X Ray ◽  
Cell Parameters ◽  
Powder Diffractometer ◽  
Cell Dimensions ◽  
Z Value ◽  
Unit Cell Dimensions

AbstractMetal cimetidine isothiocyanates, M(C10H16SN6)2(NCS)2, where M = Co(II), Ni(II) and Cu(II), have been investigated by means of X-ray powder diffraction. Unit cell dimensions were determined from powder diffractometer data. Refined cell parameters (monoclinic with a primitive cell), powder data, calculated densities and Z value are presented.

Crystal data of Nitrofurantoin C8H6N4O5

1993 ◽  
Vol 8 (2) ◽  
pp. 107-108 ◽  
Author(s):  
G. Bandoli ◽  
A. Ongaro ◽  
F. Lotto ◽  
M. Rossi
Keyword(s):  
Diffraction Analysis ◽  
Powder Diffraction ◽  
Unit Cell ◽  
Crystal Data ◽  
Unit Cell Parameters ◽  
Powder Diffraction File ◽  
X Ray ◽  
Cell Parameters ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

X-ray powder diffraction of Nitrofurantoin C8H6N4O5 reveals that the compound crystallizes in a monoclinic unit cell with the powder data unit cell parameters of a = 7.852(2), b= 6.497(1), c = 18.927(5) Å, β=93.15(2)°, V=964.1(2) Å3. The unit cell dimensions determined by single crystal agree very well with those of powder diffraction analysis. A comparison with the Powder Diffraction File (PDF) 34-1603 indicates that the present data provide a more precise match to the unit cell, include additional weak reflections, along with the indexing of the powder pattern.

Crystal Data for Nickel Cimetidine Chloride: Ni (CM)2 CL2·2H2O

1989 ◽  
Vol 4 (4) ◽  
pp. 225-226
Author(s):  
J.M. Amigó ◽  
L.E. Ochando ◽  
M.M. Reventós ◽  
A. Sancho ◽  
L. Soto-Tuero
Keyword(s):  
Powder Diffraction ◽  
Unit Cell ◽  
Crystal Data ◽  
X Ray ◽  
Cell Dimensions ◽  
Unit Cell Dimensions ◽  
Monoclinic Cell

AbstractNickel Cimetidine Chloride, Ni(C10H16SN6)2Cl2·2H2O has been investigated by means of X-ray powder diffraction. Unit cell dimensions were determined by indexing programs, from diffractometer data obtained with copper radiation. A primitive monoclinic cell was found: a = 11.836(3)Å, b = 13.322(5)Å, c = 10.487(2)Å, β = 113.08 (2)°, Z = 2, Dx = 1.462 g/cm3, M.W. = 670.32. These data are consistent with values reported in the literature for other cimetidine complexes.

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