TY  - JOUR
AU  - Stojanović, Jovica
AU  - Đorđević, Tamara
AU  - Karanović, Ljiljana
PY  - 2010
UR  - https://ritnms.itnms.ac.rs/handle/123456789/180
AB  - The structure of the title compound, ammineaquadi-mu(5)-phosphato-trizinc(II), [Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)], consists of two parts: (i) PO4 and ZnO4 vertex-sharing tetrahedra arranged in layers parallel to (100) and (ii) ZnO2(N/O)(2) tetrahedra located between the layers. Elemental analysis establishes the ammine-to-water ratio as 3:2. ZnO2(N/O)(2) tetrahedra are located at special position 4e (site symmetry 2) in C2/c. The two O atoms of ZnO2(N/O)(2) are bonded to neighbouring P atoms, forming two Zn-O-P linkages and connecting ZnO2(N/O)(2) tetrahedra with two adjacent bc plane layers. A noteworthy feature of the structure is the presence of NH3 and H2O at the same crystallographic position and, consequently, qualitative changes in the pattern of hydrogen bonding and weaker N/O-H center dot center dot center dot O electrostatic interactions, as compared to two closely related structures.
PB  - Wiley-Blackwell, Malden
T2  - Acta Crystallographica Section C-Crystal Structure Communications
T1  - [Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)]
EP  - I57
SP  - I55
VL  - 66
DO  - 10.1107/S0108270110014885
UR  - conv_581
ER  - 

@article{
author = "Stojanović, Jovica and Đorđević, Tamara and Karanović, Ljiljana",
year = "2010",
abstract = "The structure of the title compound, ammineaquadi-mu(5)-phosphato-trizinc(II), [Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)], consists of two parts: (i) PO4 and ZnO4 vertex-sharing tetrahedra arranged in layers parallel to (100) and (ii) ZnO2(N/O)(2) tetrahedra located between the layers. Elemental analysis establishes the ammine-to-water ratio as 3:2. ZnO2(N/O)(2) tetrahedra are located at special position 4e (site symmetry 2) in C2/c. The two O atoms of ZnO2(N/O)(2) are bonded to neighbouring P atoms, forming two Zn-O-P linkages and connecting ZnO2(N/O)(2) tetrahedra with two adjacent bc plane layers. A noteworthy feature of the structure is the presence of NH3 and H2O at the same crystallographic position and, consequently, qualitative changes in the pattern of hydrogen bonding and weaker N/O-H center dot center dot center dot O electrostatic interactions, as compared to two closely related structures.",
publisher = "Wiley-Blackwell, Malden",
journal = "Acta Crystallographica Section C-Crystal Structure Communications",
title = "[Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)]",
pages = "I57-I55",
volume = "66",
doi = "10.1107/S0108270110014885",
url = "conv_581"
}

Stojanović, J., Đorđević, T.,& Karanović, L.. (2010). [Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)]. in Acta Crystallographica Section C-Crystal Structure Communications
Wiley-Blackwell, Malden., 66, I55-I57.
https://doi.org/10.1107/S0108270110014885
conv_581

Stojanović J, Đorđević T, Karanović L. [Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)]. in Acta Crystallographica Section C-Crystal Structure Communications. 2010;66:I55-I57.
doi:10.1107/S0108270110014885
conv_581 .

Stojanović, Jovica, Đorđević, Tamara, Karanović, Ljiljana, "[Zn-3(PO4)(2)(H2O)(0.8)(NH3)(1.2)]" in Acta Crystallographica Section C-Crystal Structure Communications, 66 (2010):I55-I57,
https://doi.org/10.1107/S0108270110014885 .,
conv_581 .

TY  - JOUR
AU  - Đorđević, Tamara
AU  - Sutović, Sabina
AU  - Stojanović, Jovica
AU  - Karanović, Ljiljana
PY  - 2008
UR  - https://ritnms.itnms.ac.rs/handle/123456789/136
AB  - X-ray diffraction analysis of single crystals of three new arsenates adopting apatite-type structures yielded formula Sr(5)(AsO(4))(3)F for strontium arsenate fluoride, (I), (Sr(1.66)Ba(0.34))-(Ba(2.61)Sr(0.39))(AsO(4))(3)Cl for strontium barium arsenate chloride, (II), and Cd(5)(AsO(4))(3)Cl(0.58)(OH)(0.42) for cadmium arsenate hydroxide chloride, (III). All three structures are built up of isolated slightly distorted AsO(4) tetrahedra that are bridged by Sr(2+) in (I), by Sr(2+)/Ba(2+) in (II) and by Cd(2+) in (III). Compounds (I) and ( II) represent typical fluorapatites and chlorapatites, respectively, with F(-) at the 2a (0, 0, 1/4) site and Cl(-) at the 2b (0, 0, 0) site of P6(3)/m. In contrast, in (III), due to the requirement that the smaller Cd(2+) cation is positioned closer to the channel Cl(-) anion (partially substituted by OH(-)), the anion occupies the unusual 2a (0, 0, 1/4) site. Therefore, Cl(-) is similar to F(-) in (I), coordinated by three A2 cations, unlike the octahedrally coordinated Cl(-) in (II) and other ordinary chlorapatites. Furthermore, in (III), using FTIR studies, we have inferred the existence of H(+) outside the channel in oxyhydroxyapatites and provided possible atomic coordinates for a H atom in HAsO(4)(2-), leading to a proposed formulation of the compound as Cd(5)(AsO(4))(3-x)(HAsO(4))(x)-Cl(0.58)(OH)(0.42-x-(y/2))O(x+(y/2))square(y/2).
PB  - Wiley-Blackwell, Malden
T2  - Acta Crystallographica Section C-Crystal Structure Communications
T1  - Sr, Ba and Cd arsenates with the apatite-type structure
EP  - I86
SP  - I82
VL  - 64
DO  - 10.1107/S0108270108023457
UR  - conv_549
ER  - 

@article{
author = "Đorđević, Tamara and Sutović, Sabina and Stojanović, Jovica and Karanović, Ljiljana",
year = "2008",
abstract = "X-ray diffraction analysis of single crystals of three new arsenates adopting apatite-type structures yielded formula Sr(5)(AsO(4))(3)F for strontium arsenate fluoride, (I), (Sr(1.66)Ba(0.34))-(Ba(2.61)Sr(0.39))(AsO(4))(3)Cl for strontium barium arsenate chloride, (II), and Cd(5)(AsO(4))(3)Cl(0.58)(OH)(0.42) for cadmium arsenate hydroxide chloride, (III). All three structures are built up of isolated slightly distorted AsO(4) tetrahedra that are bridged by Sr(2+) in (I), by Sr(2+)/Ba(2+) in (II) and by Cd(2+) in (III). Compounds (I) and ( II) represent typical fluorapatites and chlorapatites, respectively, with F(-) at the 2a (0, 0, 1/4) site and Cl(-) at the 2b (0, 0, 0) site of P6(3)/m. In contrast, in (III), due to the requirement that the smaller Cd(2+) cation is positioned closer to the channel Cl(-) anion (partially substituted by OH(-)), the anion occupies the unusual 2a (0, 0, 1/4) site. Therefore, Cl(-) is similar to F(-) in (I), coordinated by three A2 cations, unlike the octahedrally coordinated Cl(-) in (II) and other ordinary chlorapatites. Furthermore, in (III), using FTIR studies, we have inferred the existence of H(+) outside the channel in oxyhydroxyapatites and provided possible atomic coordinates for a H atom in HAsO(4)(2-), leading to a proposed formulation of the compound as Cd(5)(AsO(4))(3-x)(HAsO(4))(x)-Cl(0.58)(OH)(0.42-x-(y/2))O(x+(y/2))square(y/2).",
publisher = "Wiley-Blackwell, Malden",
journal = "Acta Crystallographica Section C-Crystal Structure Communications",
title = "Sr, Ba and Cd arsenates with the apatite-type structure",
pages = "I86-I82",
volume = "64",
doi = "10.1107/S0108270108023457",
url = "conv_549"
}

Đorđević, T., Sutović, S., Stojanović, J.,& Karanović, L.. (2008). Sr, Ba and Cd arsenates with the apatite-type structure. in Acta Crystallographica Section C-Crystal Structure Communications
Wiley-Blackwell, Malden., 64, I82-I86.
https://doi.org/10.1107/S0108270108023457
conv_549

Đorđević T, Sutović S, Stojanović J, Karanović L. Sr, Ba and Cd arsenates with the apatite-type structure. in Acta Crystallographica Section C-Crystal Structure Communications. 2008;64:I82-I86.
doi:10.1107/S0108270108023457
conv_549 .

Đorđević, Tamara, Sutović, Sabina, Stojanović, Jovica, Karanović, Ljiljana, "Sr, Ba and Cd arsenates with the apatite-type structure" in Acta Crystallographica Section C-Crystal Structure Communications, 64 (2008):I82-I86,
https://doi.org/10.1107/S0108270108023457 .,
conv_549 .