The crystal structures of two polymeric chlorocadmates(II), having triprotonated amines as counterions, have been determined. The CdCl5 (denH3) salt is orthorhombic with the following space group and lattice constants: Pnma, a = 7.208(1) A ̊, b = 24.663(6) A ̊, c = 7.225(1) A ̊, α= β = γ = 90.0°, Z = 4. Its structure consists of sequences of alternating layers of corner-sharing (CdCl6) octahedra (perovskite-type structure) anchored by interposed sheets of aligned diethylenetriammonium cations and of uncoordinated chlorine ions. The Cd2 Cl7 (NametpzH3) · 3H2O salt is triclinic with the following space group and lattice constants: P1̄, a = 9.711(3) A ̊, b = 12.984(3) A ̊, c = 9.201(3) A ̊, α= 107.91(5)°, β = 113.99(5)°, γ = 83.29(3)°, Z = 2. Its structure consists of linear chains of (Cd2 Cl7 (OH2))n3- anions, NametpzH33+ cations and two uncoordinated water molecules. Thermal, far-infrared spectra and d.c. and a.c. electrical measurements are also performed on both the above cited compounds and the anhydrous Cd2 Cl7 (NametpzH3) salt. Correlations among the different electrical parameters (electrical conductivity, dielectric constant and loss factor) and the known structures of these materials are also drawn. © 1988.
The crystal structures and spectroscopic, thermal and electrical properties of linear and perovskite-type polymeric chlorocadmates (II) / Manfredini, T.; Pellacani, G. C.; Battaglia, L. P.; Corradi, A. B.; Motori, A.; Sandrolini, F.. - In: MATERIALS CHEMISTRY AND PHYSICS. - ISSN 0254-0584. - 20:3(1988), pp. 215-231. [10.1016/0254-0584(88)90062-4]
The crystal structures and spectroscopic, thermal and electrical properties of linear and perovskite-type polymeric chlorocadmates (II)
Manfredini T.;Pellacani G. C.;Corradi A. B.;Sandrolini F.
1988
Abstract
The crystal structures of two polymeric chlorocadmates(II), having triprotonated amines as counterions, have been determined. The CdCl5 (denH3) salt is orthorhombic with the following space group and lattice constants: Pnma, a = 7.208(1) A ̊, b = 24.663(6) A ̊, c = 7.225(1) A ̊, α= β = γ = 90.0°, Z = 4. Its structure consists of sequences of alternating layers of corner-sharing (CdCl6) octahedra (perovskite-type structure) anchored by interposed sheets of aligned diethylenetriammonium cations and of uncoordinated chlorine ions. The Cd2 Cl7 (NametpzH3) · 3H2O salt is triclinic with the following space group and lattice constants: P1̄, a = 9.711(3) A ̊, b = 12.984(3) A ̊, c = 9.201(3) A ̊, α= 107.91(5)°, β = 113.99(5)°, γ = 83.29(3)°, Z = 2. Its structure consists of linear chains of (Cd2 Cl7 (OH2))n3- anions, NametpzH33+ cations and two uncoordinated water molecules. Thermal, far-infrared spectra and d.c. and a.c. electrical measurements are also performed on both the above cited compounds and the anhydrous Cd2 Cl7 (NametpzH3) salt. Correlations among the different electrical parameters (electrical conductivity, dielectric constant and loss factor) and the known structures of these materials are also drawn. © 1988.
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