Karanovic, L

Link to this page

Authority KeyName Variants
orcid::0000-0001-9534-1315
  • Karanovic, L (2)
  • Karanovic, Ljiljana (2)
Projects

Author's Bibliography

Crystal structure of (Bi0.94Sb1.06)S-3 and reconsideration of cation distribution over mixed sites in the bismuthinitestibnite solid-solution series

Poleti, Dejan; Karanovic, Ljiljana; Balic-Zunic, Tonci; Gržetić, Ivan

(E Schweizerbartsche Verlagsbuchhandlung, Stuttgart, 2012)

TY  - JOUR
AU  - Poleti, Dejan
AU  - Karanovic, Ljiljana
AU  - Balic-Zunic, Tonci
AU  - Gržetić, Ivan
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1290
AB  - The intermediate member of the (Bi,Sb)(2)S-3 solid-solution series was prepared by dry synthesis at low temperature (200 degrees C) with a long annealing period in sealed silica tube. The EDS analysis yielded an empirical formula (Bi0.96Sb1.04)S-3, which is very close to the formula (Bi0.94Sb1.06)S-3 obtained by crystal structure analysis. The crystal structure was refined to the R-factors: R-1 = 0.0288 for I  gt  2 sigma(I) and wR(2) = 0.0542 for all data. (Bi0.94Sb1.06)S-3 has orthorhombic symmetry with space group Pnma (No. 62). The asymmetric unit contains two independent mixed cation sites, both coordinated to seven S atoms in a form of mono-capped trigonal prism. They combine into infinite (M4S6)(n) rods parallel to the [010] direction with only weak interactions between rods where the lone electron pairs are directed. Our data and the revaluation of previous data resolve a controversy about the distribution of Sb and Bi over the two structural sites which exists in previously published works. It is shown that the structural constraints favour a slight preference of the larger cation for the marginal M1 site over the whole span of the solid-solution series. The unit cell parameters show a deviation form the Vegard's law connected with different rates of the parallel increase of lengths of the strong bonds and the decreasing influence of the lone electron pair with the replacement of Sb by Bi. The changes in the character of the two independent cation sites introduced by this replacement are similar to those produced during compression of Sb2S3.
PB  - E Schweizerbartsche Verlagsbuchhandlung, Stuttgart
T2  - Neues Jahrbuch Fur Mineralogie. Abhandlungen
T1  - Crystal structure of (Bi0.94Sb1.06)S-3 and reconsideration of cation distribution over mixed sites in the bismuthinitestibnite solid-solution series
VL  - 189
IS  - 2
SP  - 177
EP  - 187
DO  - 10.1127/0077-7757/2012/0217
ER  - 
@article{
author = "Poleti, Dejan and Karanovic, Ljiljana and Balic-Zunic, Tonci and Gržetić, Ivan",
year = "2012",
abstract = "The intermediate member of the (Bi,Sb)(2)S-3 solid-solution series was prepared by dry synthesis at low temperature (200 degrees C) with a long annealing period in sealed silica tube. The EDS analysis yielded an empirical formula (Bi0.96Sb1.04)S-3, which is very close to the formula (Bi0.94Sb1.06)S-3 obtained by crystal structure analysis. The crystal structure was refined to the R-factors: R-1 = 0.0288 for I  gt  2 sigma(I) and wR(2) = 0.0542 for all data. (Bi0.94Sb1.06)S-3 has orthorhombic symmetry with space group Pnma (No. 62). The asymmetric unit contains two independent mixed cation sites, both coordinated to seven S atoms in a form of mono-capped trigonal prism. They combine into infinite (M4S6)(n) rods parallel to the [010] direction with only weak interactions between rods where the lone electron pairs are directed. Our data and the revaluation of previous data resolve a controversy about the distribution of Sb and Bi over the two structural sites which exists in previously published works. It is shown that the structural constraints favour a slight preference of the larger cation for the marginal M1 site over the whole span of the solid-solution series. The unit cell parameters show a deviation form the Vegard's law connected with different rates of the parallel increase of lengths of the strong bonds and the decreasing influence of the lone electron pair with the replacement of Sb by Bi. The changes in the character of the two independent cation sites introduced by this replacement are similar to those produced during compression of Sb2S3.",
publisher = "E Schweizerbartsche Verlagsbuchhandlung, Stuttgart",
journal = "Neues Jahrbuch Fur Mineralogie. Abhandlungen",
title = "Crystal structure of (Bi0.94Sb1.06)S-3 and reconsideration of cation distribution over mixed sites in the bismuthinitestibnite solid-solution series",
volume = "189",
number = "2",
pages = "177-187",
doi = "10.1127/0077-7757/2012/0217"
}
Poleti, D., Karanovic, L., Balic-Zunic, T.,& Gržetić, I.. (2012). Crystal structure of (Bi0.94Sb1.06)S-3 and reconsideration of cation distribution over mixed sites in the bismuthinitestibnite solid-solution series. in Neues Jahrbuch Fur Mineralogie. Abhandlungen
E Schweizerbartsche Verlagsbuchhandlung, Stuttgart., 189(2), 177-187.
https://doi.org/10.1127/0077-7757/2012/0217
Poleti D, Karanovic L, Balic-Zunic T, Gržetić I. Crystal structure of (Bi0.94Sb1.06)S-3 and reconsideration of cation distribution over mixed sites in the bismuthinitestibnite solid-solution series. in Neues Jahrbuch Fur Mineralogie. Abhandlungen. 2012;189(2):177-187.
doi:10.1127/0077-7757/2012/0217 .
Poleti, Dejan, Karanovic, Ljiljana, Balic-Zunic, Tonci, Gržetić, Ivan, "Crystal structure of (Bi0.94Sb1.06)S-3 and reconsideration of cation distribution over mixed sites in the bismuthinitestibnite solid-solution series" in Neues Jahrbuch Fur Mineralogie. Abhandlungen, 189, no. 2 (2012):177-187,
https://doi.org/10.1127/0077-7757/2012/0217 . .
7
7
7
5

Two new examples of very short thallium-transition metal contacts: Tl(3)Ag(3)Sb(2)S(6) and Tl(3)Ag(3)As(2)S(6)

Karanovic, Ljiljana; Poleti, Dejan; Balic-Zunic, Tonci; Makovicky, Emil; Gržetić, Ivan

(Elsevier Science Sa, Lausanne, 2008)

TY  - JOUR
AU  - Karanovic, Ljiljana
AU  - Poleti, Dejan
AU  - Balic-Zunic, Tonci
AU  - Makovicky, Emil
AU  - Gržetić, Ivan
PY  - 2008
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/937
AB  - Two new sulphosalts Tl(3)Ag(3)Sb(2)S(6), (1) and Tl(3)Ag(3)AS(2)S(6), (2) were prepared in reaction of synthetic binary sulfides: argentite (Ag(2)S), carlinite (Tl(2)S) and orpiment (As(2)O(3)) or stibnite (Sb(2)S(3)), and their crystal structures have been determined using single-crystal data. The compounds are isostructural and crystallize in the space group P2(1)/C (Z = 4), with a = 11.6854(17) angstrom, b = 11.8602(17) angstrom, c = 12.1294(18) angstrom, beta = 123.356(2)degrees, V = 1404.1(4) angstrom(3) for 1, and a = 11.4415(14) angstrom, b = 11.7530(15) angstrom, c = 11.9880(16) angstrom, beta = 123.516(3)degrees, V= 1344.0(3) angstrom(3) for2. Refinements involving anisotropic displacement parameters for all atoms converged to the conventional R-factors: R(1) = 0.0496 for 1 and R(1) = 0.0372 for 2. The structures consist of two kinds of slabs alternately situated along [1 0 0] direction and sharing S atoms located between them. The first slab is built up of Tl1S(8), Tl(2)S(6), Tl(3)S(5)Ag(3) coordination polyhedra and Ag(3)S(3)n(3) distorted trigonal pyramid (the average  lt  Ag(3)-S  gt  distance is 2.542 for 1 and 2.539 angstrom for 2) combined with trigonal Sb1S(3) or As1S(3) coordination pyramids ( lt  Sb1-S  gt  and  lt  As1-S  gt  are 2.438 and 2.259 angstrom, respectively). The thallium atom Tl1 is surrounded by eight S atoms forming a square anti-prism ( lt  Tl1-S  gt : 3.393 for 1 and 3.356 angstrom for 2), while the coordination polyhedron of Tl2 can be described as a significantly distorted trigonal prism or as an extremely distorted octahedron ( lt  Tl2-S  gt : 3.236 angstrom for 1 and 3.238 angstrom for 2). Thallium Tl3 is surrounded by six atoms (one Ag, four S at shorter and one S at longer distance), which form a distorted trigonal prism ( lt  Tl3-S  gt : 3.165 angstrom in 1 and 3.155 angstrom in 2). The second slab consists of trigonal Sb(2)S(3) or As(2)S(3) coordination pyramids combined with Ag1S(4) and Ag(2)S(4) coordination tetrahedra ( lt  Sb2-S  gt  and  lt  As2-S  gt  are 2.433 and 2.251 angstrom, respectively;  lt  Ag1-S  gt : 2.623 angstrom for 1 and 2.612 A for 2;  lt  Ag2-S  gt : 2.623 angstrom for 1 and 2.630 angstrom for 2). The most interesting feature of both structures is the existence of short Tl3-Ag(3) contacts of 2.959(2) angstrom in 1 and 2.922(1) angstrom in 2. These contacts are the shortest found so far and indicate very strong Tl-Ag interactions. They are discussed in terms of metallophilicity principle and relativistic effects. It is also pointed out that if only valence shell electrons are considered (Tl-Ag)(2+) group is isoelectronic with the (Hg-Hg)(2+) ion, therefore new examples of short Tl-Ag contacts could be expected. (C) 2007 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Two new examples of very short thallium-transition metal contacts: Tl(3)Ag(3)Sb(2)S(6) and Tl(3)Ag(3)As(2)S(6)
VL  - 457
IS  - 1-2
SP  - 66
EP  - 74
DO  - 10.1016/j.jallcom.2007.03.014
ER  - 
@article{
author = "Karanovic, Ljiljana and Poleti, Dejan and Balic-Zunic, Tonci and Makovicky, Emil and Gržetić, Ivan",
year = "2008",
abstract = "Two new sulphosalts Tl(3)Ag(3)Sb(2)S(6), (1) and Tl(3)Ag(3)AS(2)S(6), (2) were prepared in reaction of synthetic binary sulfides: argentite (Ag(2)S), carlinite (Tl(2)S) and orpiment (As(2)O(3)) or stibnite (Sb(2)S(3)), and their crystal structures have been determined using single-crystal data. The compounds are isostructural and crystallize in the space group P2(1)/C (Z = 4), with a = 11.6854(17) angstrom, b = 11.8602(17) angstrom, c = 12.1294(18) angstrom, beta = 123.356(2)degrees, V = 1404.1(4) angstrom(3) for 1, and a = 11.4415(14) angstrom, b = 11.7530(15) angstrom, c = 11.9880(16) angstrom, beta = 123.516(3)degrees, V= 1344.0(3) angstrom(3) for2. Refinements involving anisotropic displacement parameters for all atoms converged to the conventional R-factors: R(1) = 0.0496 for 1 and R(1) = 0.0372 for 2. The structures consist of two kinds of slabs alternately situated along [1 0 0] direction and sharing S atoms located between them. The first slab is built up of Tl1S(8), Tl(2)S(6), Tl(3)S(5)Ag(3) coordination polyhedra and Ag(3)S(3)n(3) distorted trigonal pyramid (the average  lt  Ag(3)-S  gt  distance is 2.542 for 1 and 2.539 angstrom for 2) combined with trigonal Sb1S(3) or As1S(3) coordination pyramids ( lt  Sb1-S  gt  and  lt  As1-S  gt  are 2.438 and 2.259 angstrom, respectively). The thallium atom Tl1 is surrounded by eight S atoms forming a square anti-prism ( lt  Tl1-S  gt : 3.393 for 1 and 3.356 angstrom for 2), while the coordination polyhedron of Tl2 can be described as a significantly distorted trigonal prism or as an extremely distorted octahedron ( lt  Tl2-S  gt : 3.236 angstrom for 1 and 3.238 angstrom for 2). Thallium Tl3 is surrounded by six atoms (one Ag, four S at shorter and one S at longer distance), which form a distorted trigonal prism ( lt  Tl3-S  gt : 3.165 angstrom in 1 and 3.155 angstrom in 2). The second slab consists of trigonal Sb(2)S(3) or As(2)S(3) coordination pyramids combined with Ag1S(4) and Ag(2)S(4) coordination tetrahedra ( lt  Sb2-S  gt  and  lt  As2-S  gt  are 2.433 and 2.251 angstrom, respectively;  lt  Ag1-S  gt : 2.623 angstrom for 1 and 2.612 A for 2;  lt  Ag2-S  gt : 2.623 angstrom for 1 and 2.630 angstrom for 2). The most interesting feature of both structures is the existence of short Tl3-Ag(3) contacts of 2.959(2) angstrom in 1 and 2.922(1) angstrom in 2. These contacts are the shortest found so far and indicate very strong Tl-Ag interactions. They are discussed in terms of metallophilicity principle and relativistic effects. It is also pointed out that if only valence shell electrons are considered (Tl-Ag)(2+) group is isoelectronic with the (Hg-Hg)(2+) ion, therefore new examples of short Tl-Ag contacts could be expected. (C) 2007 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Two new examples of very short thallium-transition metal contacts: Tl(3)Ag(3)Sb(2)S(6) and Tl(3)Ag(3)As(2)S(6)",
volume = "457",
number = "1-2",
pages = "66-74",
doi = "10.1016/j.jallcom.2007.03.014"
}
Karanovic, L., Poleti, D., Balic-Zunic, T., Makovicky, E.,& Gržetić, I.. (2008). Two new examples of very short thallium-transition metal contacts: Tl(3)Ag(3)Sb(2)S(6) and Tl(3)Ag(3)As(2)S(6). in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 457(1-2), 66-74.
https://doi.org/10.1016/j.jallcom.2007.03.014
Karanovic L, Poleti D, Balic-Zunic T, Makovicky E, Gržetić I. Two new examples of very short thallium-transition metal contacts: Tl(3)Ag(3)Sb(2)S(6) and Tl(3)Ag(3)As(2)S(6). in Journal of Alloys and Compounds. 2008;457(1-2):66-74.
doi:10.1016/j.jallcom.2007.03.014 .
Karanovic, Ljiljana, Poleti, Dejan, Balic-Zunic, Tonci, Makovicky, Emil, Gržetić, Ivan, "Two new examples of very short thallium-transition metal contacts: Tl(3)Ag(3)Sb(2)S(6) and Tl(3)Ag(3)As(2)S(6)" in Journal of Alloys and Compounds, 457, no. 1-2 (2008):66-74,
https://doi.org/10.1016/j.jallcom.2007.03.014 . .
11
11
12
11

Cytotoxicity of some platinum(IV) complexes with ethylenediamine-N,N'-di-3-propionato ligand

Sabo, Tibor; Kaluđerović, Goran N.; Poleti, D; Karanovic, L; Boccarelli, A; Cannito, F; Natile, G

(Elsevier Science Inc, New York, 2004)

TY  - JOUR
AU  - Sabo, Tibor
AU  - Kaluđerović, Goran N.
AU  - Poleti, D
AU  - Karanovic, L
AU  - Boccarelli, A
AU  - Cannito, F
AU  - Natile, G
PY  - 2004
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/655
AB  - The cytotoxicities of two platinum(IV) complexes of formula [PtX(2)(eddp)] - nH(2)O (eddp = ethylenediamine-N,N'-di-3-propionate, X = chloro [11 or bromo [11], n = I or 1.24) are reported. The complexes have been obtained by direct reaction of potassium hexahaloplatinate(IV) with H(2)eddp.2HCl followed by addition of a base (LiOH). The crystal and molecular structure has confirmed that the complex with bromo ligands, similarly to the complex with chloro ligands previously reported, has trans configuration of the halogens. In both the chloro and bromo complexes there appear to be intramolecular N-H... X interactions which account for a narrowing of the corresponding X-Pt-N angles below 90degrees. The trans isomer (configuration index OC-6-13, two nitrogens and two oxygens of eddp bound in the equatorial plane) is the only one obtained in the reaction of hexahaloplatinate(IV) with the eddp ligand while a similar reaction performed with ethylenediamine-N,N'-diacetate (edda) affords exclusively the symmetrical cis-isomer (configuration index OC-6-33, equatorial nitrogen and axial oxygen atoms of edda). The longer chain of the propionato groups (as compared to the acetato ones) is responsible for such a change in preferred configuration. NMR data have revealed a very large diastereotopic splitting of the propionato methylene protons a to the nitrogens (0.88 ppm). The trans disposition of the halogen ligands in the compounds with eddp leads to deactivation of platinum(IV) complexes in comparison to those with edda having cis disposition of the leaving chlorides (human ovarian cancer cell line A2780, IC(50) [muM] of 92.6 +/- 12 and 30.3 +/- 7.5 for [1] and [11], respectively). (C) 2004 Elsevier Inc. All rights reserved.
PB  - Elsevier Science Inc, New York
T2  - Journal of Inorganic Biochemistry
T1  - Cytotoxicity of some platinum(IV) complexes with ethylenediamine-N,N'-di-3-propionato ligand
VL  - 98
IS  - 8
SP  - 1378
EP  - 1384
DO  - 10.1016/j.jinorgbio.2004.04.023
ER  - 
@article{
author = "Sabo, Tibor and Kaluđerović, Goran N. and Poleti, D and Karanovic, L and Boccarelli, A and Cannito, F and Natile, G",
year = "2004",
abstract = "The cytotoxicities of two platinum(IV) complexes of formula [PtX(2)(eddp)] - nH(2)O (eddp = ethylenediamine-N,N'-di-3-propionate, X = chloro [11 or bromo [11], n = I or 1.24) are reported. The complexes have been obtained by direct reaction of potassium hexahaloplatinate(IV) with H(2)eddp.2HCl followed by addition of a base (LiOH). The crystal and molecular structure has confirmed that the complex with bromo ligands, similarly to the complex with chloro ligands previously reported, has trans configuration of the halogens. In both the chloro and bromo complexes there appear to be intramolecular N-H... X interactions which account for a narrowing of the corresponding X-Pt-N angles below 90degrees. The trans isomer (configuration index OC-6-13, two nitrogens and two oxygens of eddp bound in the equatorial plane) is the only one obtained in the reaction of hexahaloplatinate(IV) with the eddp ligand while a similar reaction performed with ethylenediamine-N,N'-diacetate (edda) affords exclusively the symmetrical cis-isomer (configuration index OC-6-33, equatorial nitrogen and axial oxygen atoms of edda). The longer chain of the propionato groups (as compared to the acetato ones) is responsible for such a change in preferred configuration. NMR data have revealed a very large diastereotopic splitting of the propionato methylene protons a to the nitrogens (0.88 ppm). The trans disposition of the halogen ligands in the compounds with eddp leads to deactivation of platinum(IV) complexes in comparison to those with edda having cis disposition of the leaving chlorides (human ovarian cancer cell line A2780, IC(50) [muM] of 92.6 +/- 12 and 30.3 +/- 7.5 for [1] and [11], respectively). (C) 2004 Elsevier Inc. All rights reserved.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Inorganic Biochemistry",
title = "Cytotoxicity of some platinum(IV) complexes with ethylenediamine-N,N'-di-3-propionato ligand",
volume = "98",
number = "8",
pages = "1378-1384",
doi = "10.1016/j.jinorgbio.2004.04.023"
}
Sabo, T., Kaluđerović, G. N., Poleti, D., Karanovic, L., Boccarelli, A., Cannito, F.,& Natile, G.. (2004). Cytotoxicity of some platinum(IV) complexes with ethylenediamine-N,N'-di-3-propionato ligand. in Journal of Inorganic Biochemistry
Elsevier Science Inc, New York., 98(8), 1378-1384.
https://doi.org/10.1016/j.jinorgbio.2004.04.023
Sabo T, Kaluđerović GN, Poleti D, Karanovic L, Boccarelli A, Cannito F, Natile G. Cytotoxicity of some platinum(IV) complexes with ethylenediamine-N,N'-di-3-propionato ligand. in Journal of Inorganic Biochemistry. 2004;98(8):1378-1384.
doi:10.1016/j.jinorgbio.2004.04.023 .
Sabo, Tibor, Kaluđerović, Goran N., Poleti, D, Karanovic, L, Boccarelli, A, Cannito, F, Natile, G, "Cytotoxicity of some platinum(IV) complexes with ethylenediamine-N,N'-di-3-propionato ligand" in Journal of Inorganic Biochemistry, 98, no. 8 (2004):1378-1384,
https://doi.org/10.1016/j.jinorgbio.2004.04.023 . .
22
23
25
21

The change of crystal symmetry and cation ordering in Li-Mg ferrites

Antić, Bratislav; Rodic, D; Nikolić, Aleksandar S.; Kacarevic-Popovic, Z; Karanovic, L

(Elsevier Science Sa, Lausanne, 2002)

TY  - JOUR
AU  - Antić, Bratislav
AU  - Rodic, D
AU  - Nikolić, Aleksandar S.
AU  - Kacarevic-Popovic, Z
AU  - Karanovic, L
PY  - 2002
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/485
AB  - In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) was prepared by thermal decomposition of a mixture of complex compounds [Mg(AA)(2)] and [Fe(AA)(3)] at 500degreesC (AA=acetylacetone). The solid solutions of LixMg1-2xFe2+xO4 (0.10less than or equal toxless than or equal to0.45) were synthesized by conventional ceramic method. The samples with xgreater than or equal to0.40 belong to ordered spinels with primitive cubic cell, space group P4(3)32 and the samples with xgreater than or equal to0.35 are spinels with face-centered cubic cell, space group Fd-3m. Crystal structures of samples with x=0.00, 0.40 and 0.45 were refined by the Rietveld method using DBWS-9411 software package. In ordered spinels (x=0.40, 0.45) Li+ ions occupy both 4b (preferentially) and 12d octahedral sites. At tetrahedral 8c positions Li+ ions were not found (within the experimental error). Mg2+ ions occupy octahedral 12d and tetrahedral 8c sites and Fe3+ ions occupy all three different cationic sites. Cation ordering in 1:3 type ordered spinel (the occupancy ratio of the Wyckoff's positions 4b and 12d) of Li+ and Fe3(+) at octahedral sites is not complete as in Li0.5Fe2.5O4, In MgFe2O4 spinel, cation distribution in the tetrahedral sites was determined and given by occupation numbers N: N(Mg-8a(2+))=0.183(7) and N(Fe-8a(3+))=0.817(7). (C) 2002 Elsevier Science BY All rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - The change of crystal symmetry and cation ordering in Li-Mg ferrites
VL  - 336
IS  - 1-2
SP  - 286
EP  - 291
DO  - 10.1016/S0925-8388(01)01885-0
ER  - 
@article{
author = "Antić, Bratislav and Rodic, D and Nikolić, Aleksandar S. and Kacarevic-Popovic, Z and Karanovic, L",
year = "2002",
abstract = "In this work we present results of synthesis and structural investigation of the spinels with general formula LixMg1-2xFe2+xO4, where 0.00less than or equal toxless than or equal to0.50. Ultrafine powder of MgFe2O4 (x=0.00) was prepared by thermal decomposition of a mixture of complex compounds [Mg(AA)(2)] and [Fe(AA)(3)] at 500degreesC (AA=acetylacetone). The solid solutions of LixMg1-2xFe2+xO4 (0.10less than or equal toxless than or equal to0.45) were synthesized by conventional ceramic method. The samples with xgreater than or equal to0.40 belong to ordered spinels with primitive cubic cell, space group P4(3)32 and the samples with xgreater than or equal to0.35 are spinels with face-centered cubic cell, space group Fd-3m. Crystal structures of samples with x=0.00, 0.40 and 0.45 were refined by the Rietveld method using DBWS-9411 software package. In ordered spinels (x=0.40, 0.45) Li+ ions occupy both 4b (preferentially) and 12d octahedral sites. At tetrahedral 8c positions Li+ ions were not found (within the experimental error). Mg2+ ions occupy octahedral 12d and tetrahedral 8c sites and Fe3+ ions occupy all three different cationic sites. Cation ordering in 1:3 type ordered spinel (the occupancy ratio of the Wyckoff's positions 4b and 12d) of Li+ and Fe3(+) at octahedral sites is not complete as in Li0.5Fe2.5O4, In MgFe2O4 spinel, cation distribution in the tetrahedral sites was determined and given by occupation numbers N: N(Mg-8a(2+))=0.183(7) and N(Fe-8a(3+))=0.817(7). (C) 2002 Elsevier Science BY All rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "The change of crystal symmetry and cation ordering in Li-Mg ferrites",
volume = "336",
number = "1-2",
pages = "286-291",
doi = "10.1016/S0925-8388(01)01885-0"
}
Antić, B., Rodic, D., Nikolić, A. S., Kacarevic-Popovic, Z.,& Karanovic, L.. (2002). The change of crystal symmetry and cation ordering in Li-Mg ferrites. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 336(1-2), 286-291.
https://doi.org/10.1016/S0925-8388(01)01885-0
Antić B, Rodic D, Nikolić AS, Kacarevic-Popovic Z, Karanovic L. The change of crystal symmetry and cation ordering in Li-Mg ferrites. in Journal of Alloys and Compounds. 2002;336(1-2):286-291.
doi:10.1016/S0925-8388(01)01885-0 .
Antić, Bratislav, Rodic, D, Nikolić, Aleksandar S., Kacarevic-Popovic, Z, Karanovic, L, "The change of crystal symmetry and cation ordering in Li-Mg ferrites" in Journal of Alloys and Compounds, 336, no. 1-2 (2002):286-291,
https://doi.org/10.1016/S0925-8388(01)01885-0 . .
12
13
14
12