Abstract
A systematic study of mixed mono- and diphosphates of AO-CuO-(P{sub 2}O{sub 5}) systems (A= Mg, Ca, Sr, Ba) has been carried out. This study showed up, on one hand, continuous and wide ranges in magnesium system and on the other hand, eight new phases in the other systems: Sr sub 18 Cu sub 3 (PO{sub 4}){sub 14}, A{sub 2} Cu (PO{sub 4}){sub 2}, (A= Sr, Ba), Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4}, BaCu{sub 2} (PO{sub 4}){sub 2} and ACu(P{sub 2}O{sub 7}) (A= Ca, Sr, Ba). The crystalline structures of SrCu(P{sub 2}O{sub 7}), BaCu(P{sub 2} O{sub 7}),Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4} and BaCu{sub 2} (PO{sub 4}){sub 2} phosphates have been described and discussed. The first compound presents a Tunnel structure and the three others have Foliation structures. The magnetic behaviours of some Cu sup 2+ ions phos-phates have been correlated to their crystalline structures. The experimental data have been parametered using the Ising model and/or the Heisenberg model. In this work, three Ising theoretical models have been developed. This magnetic study showed up new chains of antiferro- or ferrimagnetic Cu sup 2+ ions. 59 figs., 32 tabs., 113 refs. (author).
Citation Formats
Moqine, A.
Chemical, structural and magnetic studies of new mono- and diphosphates appearing in ternary diagrams AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba; Etudes chimique, structurale et magnetique de nouveaux mono- et diphosphates apparaissant dans les diagrammes ternaires AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba.
Morocco: N. p.,
1990.
Web.
Moqine, A.
Chemical, structural and magnetic studies of new mono- and diphosphates appearing in ternary diagrams AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba; Etudes chimique, structurale et magnetique de nouveaux mono- et diphosphates apparaissant dans les diagrammes ternaires AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba.
Morocco.
Moqine, A.
1990.
"Chemical, structural and magnetic studies of new mono- and diphosphates appearing in ternary diagrams AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba; Etudes chimique, structurale et magnetique de nouveaux mono- et diphosphates apparaissant dans les diagrammes ternaires AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba."
Morocco.
@misc{etde_10113058,
title = {Chemical, structural and magnetic studies of new mono- and diphosphates appearing in ternary diagrams AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba; Etudes chimique, structurale et magnetique de nouveaux mono- et diphosphates apparaissant dans les diagrammes ternaires AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba}
author = {Moqine, A}
abstractNote = {A systematic study of mixed mono- and diphosphates of AO-CuO-(P{sub 2}O{sub 5}) systems (A= Mg, Ca, Sr, Ba) has been carried out. This study showed up, on one hand, continuous and wide ranges in magnesium system and on the other hand, eight new phases in the other systems: Sr sub 18 Cu sub 3 (PO{sub 4}){sub 14}, A{sub 2} Cu (PO{sub 4}){sub 2}, (A= Sr, Ba), Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4}, BaCu{sub 2} (PO{sub 4}){sub 2} and ACu(P{sub 2}O{sub 7}) (A= Ca, Sr, Ba). The crystalline structures of SrCu(P{sub 2}O{sub 7}), BaCu(P{sub 2} O{sub 7}),Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4} and BaCu{sub 2} (PO{sub 4}){sub 2} phosphates have been described and discussed. The first compound presents a Tunnel structure and the three others have Foliation structures. The magnetic behaviours of some Cu sup 2+ ions phos-phates have been correlated to their crystalline structures. The experimental data have been parametered using the Ising model and/or the Heisenberg model. In this work, three Ising theoretical models have been developed. This magnetic study showed up new chains of antiferro- or ferrimagnetic Cu sup 2+ ions. 59 figs., 32 tabs., 113 refs. (author).}
place = {Morocco}
year = {1990}
month = {Dec}
}
title = {Chemical, structural and magnetic studies of new mono- and diphosphates appearing in ternary diagrams AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba; Etudes chimique, structurale et magnetique de nouveaux mono- et diphosphates apparaissant dans les diagrammes ternaires AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba}
author = {Moqine, A}
abstractNote = {A systematic study of mixed mono- and diphosphates of AO-CuO-(P{sub 2}O{sub 5}) systems (A= Mg, Ca, Sr, Ba) has been carried out. This study showed up, on one hand, continuous and wide ranges in magnesium system and on the other hand, eight new phases in the other systems: Sr sub 18 Cu sub 3 (PO{sub 4}){sub 14}, A{sub 2} Cu (PO{sub 4}){sub 2}, (A= Sr, Ba), Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4}, BaCu{sub 2} (PO{sub 4}){sub 2} and ACu(P{sub 2}O{sub 7}) (A= Ca, Sr, Ba). The crystalline structures of SrCu(P{sub 2}O{sub 7}), BaCu(P{sub 2} O{sub 7}),Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4} and BaCu{sub 2} (PO{sub 4}){sub 2} phosphates have been described and discussed. The first compound presents a Tunnel structure and the three others have Foliation structures. The magnetic behaviours of some Cu sup 2+ ions phos-phates have been correlated to their crystalline structures. The experimental data have been parametered using the Ising model and/or the Heisenberg model. In this work, three Ising theoretical models have been developed. This magnetic study showed up new chains of antiferro- or ferrimagnetic Cu sup 2+ ions. 59 figs., 32 tabs., 113 refs. (author).}
place = {Morocco}
year = {1990}
month = {Dec}
}