Abstract
Nearly colourless single crystals of the compounds CuDy{sub 2}[B{sub 8}O{sub 16}] (I) and CuHo{sub 2}[B{sub 8}O{sub 16}] (II) have been obtained by a B{sub 2}O{sub 3} flux technique. They crystallize in the structure of CuTb{sub 2}[B{sub 8}O{sub 16}] (I) or in an orthorhombic variant (II). X-ray investigations on single crystals led to the space group C{sup 5}{sub 2h} - P2{sub 1}/c (Nr. 14) with lattice parameters a = 1025.5(10); b = 836.99(10); c = 621.2(8) pm, {beta} = 90.47(10) ; Z = 2 (I) and D{sup 9}{sub 2h} - Pbam (Nr. 55) with a = 840.7(2), b = 616.6(2), c = 1022.0(2) pm, Z = 2 (II). The structures contain {sup 1}{sub {infinity}}[B{sub 8}O{sub 16}]{sup 8-} chains isolated from each other, which include tri- and tetracoordinated boron. The chains consist of alternating twelve and eight-membered rings of boron and oxygen atoms connected by BO{sub 4} units. Dy{sup 3+} and Ho{sup 3+} are octacoordinated and Cu{sup 2+} is hexacoordinated in elongated octahedra by oxygen. The relation between these two structures is discussed. (orig.) 16 refs.
Wiesch, A;
Bluhm, K;
[1]
Timm, H
[2]
- Kiel Univ. (Germany). Inst. fuer Anorganische Chemie
- Hannover Univ. (Germany). Inst. fuer Physikalische Chemie und Elektrochemie
Citation Formats
Wiesch, A, Bluhm, K, and Timm, H.
On CuDy{sub 2}[B{sub 8}O{sub 16}] and CuHo{sub 2}[B{sub 8}O{sub 16}]: two new ``metaborates`` with a {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-} anion; Ueber CuDy{sub 2}[B{sub 8}O{sub 16}] und CuHo{sub 2}[B{sub 8}O{sub 16}]: zwei neue ``Metaborate`` mit einem {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-}-Anion.
Germany: N. p.,
1998.
Web.
Wiesch, A, Bluhm, K, & Timm, H.
On CuDy{sub 2}[B{sub 8}O{sub 16}] and CuHo{sub 2}[B{sub 8}O{sub 16}]: two new ``metaborates`` with a {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-} anion; Ueber CuDy{sub 2}[B{sub 8}O{sub 16}] und CuHo{sub 2}[B{sub 8}O{sub 16}]: zwei neue ``Metaborate`` mit einem {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-}-Anion.
Germany.
Wiesch, A, Bluhm, K, and Timm, H.
1998.
"On CuDy{sub 2}[B{sub 8}O{sub 16}] and CuHo{sub 2}[B{sub 8}O{sub 16}]: two new ``metaborates`` with a {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-} anion; Ueber CuDy{sub 2}[B{sub 8}O{sub 16}] und CuHo{sub 2}[B{sub 8}O{sub 16}]: zwei neue ``Metaborate`` mit einem {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-}-Anion."
Germany.
@misc{etde_585848,
title = {On CuDy{sub 2}[B{sub 8}O{sub 16}] and CuHo{sub 2}[B{sub 8}O{sub 16}]: two new ``metaborates`` with a {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-} anion; Ueber CuDy{sub 2}[B{sub 8}O{sub 16}] und CuHo{sub 2}[B{sub 8}O{sub 16}]: zwei neue ``Metaborate`` mit einem {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-}-Anion}
author = {Wiesch, A, Bluhm, K, and Timm, H}
abstractNote = {Nearly colourless single crystals of the compounds CuDy{sub 2}[B{sub 8}O{sub 16}] (I) and CuHo{sub 2}[B{sub 8}O{sub 16}] (II) have been obtained by a B{sub 2}O{sub 3} flux technique. They crystallize in the structure of CuTb{sub 2}[B{sub 8}O{sub 16}] (I) or in an orthorhombic variant (II). X-ray investigations on single crystals led to the space group C{sup 5}{sub 2h} - P2{sub 1}/c (Nr. 14) with lattice parameters a = 1025.5(10); b = 836.99(10); c = 621.2(8) pm, {beta} = 90.47(10) ; Z = 2 (I) and D{sup 9}{sub 2h} - Pbam (Nr. 55) with a = 840.7(2), b = 616.6(2), c = 1022.0(2) pm, Z = 2 (II). The structures contain {sup 1}{sub {infinity}}[B{sub 8}O{sub 16}]{sup 8-} chains isolated from each other, which include tri- and tetracoordinated boron. The chains consist of alternating twelve and eight-membered rings of boron and oxygen atoms connected by BO{sub 4} units. Dy{sup 3+} and Ho{sup 3+} are octacoordinated and Cu{sup 2+} is hexacoordinated in elongated octahedra by oxygen. The relation between these two structures is discussed. (orig.) 16 refs.}
journal = []
issue = {1}
volume = {53}
journal type = {AC}
place = {Germany}
year = {1998}
month = {Jan}
}
title = {On CuDy{sub 2}[B{sub 8}O{sub 16}] and CuHo{sub 2}[B{sub 8}O{sub 16}]: two new ``metaborates`` with a {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-} anion; Ueber CuDy{sub 2}[B{sub 8}O{sub 16}] und CuHo{sub 2}[B{sub 8}O{sub 16}]: zwei neue ``Metaborate`` mit einem {sub {proportional_to}}{sup 1}[B{sub 8}O{sub 16}]{sup 8-}-Anion}
author = {Wiesch, A, Bluhm, K, and Timm, H}
abstractNote = {Nearly colourless single crystals of the compounds CuDy{sub 2}[B{sub 8}O{sub 16}] (I) and CuHo{sub 2}[B{sub 8}O{sub 16}] (II) have been obtained by a B{sub 2}O{sub 3} flux technique. They crystallize in the structure of CuTb{sub 2}[B{sub 8}O{sub 16}] (I) or in an orthorhombic variant (II). X-ray investigations on single crystals led to the space group C{sup 5}{sub 2h} - P2{sub 1}/c (Nr. 14) with lattice parameters a = 1025.5(10); b = 836.99(10); c = 621.2(8) pm, {beta} = 90.47(10) ; Z = 2 (I) and D{sup 9}{sub 2h} - Pbam (Nr. 55) with a = 840.7(2), b = 616.6(2), c = 1022.0(2) pm, Z = 2 (II). The structures contain {sup 1}{sub {infinity}}[B{sub 8}O{sub 16}]{sup 8-} chains isolated from each other, which include tri- and tetracoordinated boron. The chains consist of alternating twelve and eight-membered rings of boron and oxygen atoms connected by BO{sub 4} units. Dy{sup 3+} and Ho{sup 3+} are octacoordinated and Cu{sup 2+} is hexacoordinated in elongated octahedra by oxygen. The relation between these two structures is discussed. (orig.) 16 refs.}
journal = []
issue = {1}
volume = {53}
journal type = {AC}
place = {Germany}
year = {1998}
month = {Jan}
}