Crystal structures and crystal chemical relationships of kröhnkite- and collinsite-type compounds Na2Me2+(XO4)2 · 2 H2O (X
S, Me = Mn, Cd; and X = Se, Me = Mn, Co, Ni, Zn, Cd) and K2Co(SeO4)2 · 2 H2O
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| 024 | 7 | 0 | |a 10.1524/zkri.218.3.201.20751 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/zkri.218.3.201.20751 | ||
| 245 | 0 | 0 | |a Crystal structures and crystal chemical relationships of kröhnkite- and collinsite-type compounds Na2Me2+(XO4)2 · 2 H2O (X |h [Elektronische Daten] |b S, Me = Mn, Cd; and X = Se, Me = Mn, Co, Ni, Zn, Cd) and K2Co(SeO4)2 · 2 H2O |c [M. Wildner, D. Stoilova] |
| 520 | 3 | |a The crystal structures of eight compounds with compositions A2Me2+(XO4)2 · 2H2O (A = Na, X = S, Me2+ = Mn, Cd; A = Na, X = Se, Me2+ = Mn, Co, Ni, Zn, Cd; and A = K, X = Se, Me2+ = Co) were investigated using single crystal X-ray CCD diffraction data. The Mn- and Cd-compounds crystallize in the monoclinic kröhnkite structure type [Na2Cu(SO4)2 · 2 H2O, space group P21/c], the Co-, Ni-, and Zn-selenates in the closely related triclinic structure type of collinsite [Ca2Mg(PO4)2 · 2 H2O, space group P1̅]. Both types are built up from infinite Me(XO4)2(H2O)2 chains, composed of MeO4(H2O)2 octahedra alternating with each two XO4 tetrahedra by sharing corners. A—O bonds and hydrogen bonds link the chains to layers and further on to the three-dimensional structures. The influence of the ionic radii of the various A, Me, and X cations on the distances between these structural units is discussed. Special attention is paid to polyhedral distortions as well as to individual peculiarities of the alkaline coordinations and the hydrogen bonding systems. Thus, the crystal chemical relationships between the two structure types as well as to isotypic copper compounds, which are characterized by the strong octahedral Jahn-Teller distortions, are elucidated. | |
| 540 | |a © 2003 Oldenbourg Wissenschaftsverlag GmbH | ||
| 690 | 7 | |a Crystallography |2 nationallicence | |
| 690 | 7 | |a Inorganic chemistry |2 nationallicence | |
| 690 | 7 | |a Organic chemistry |2 nationallicence | |
| 700 | 1 | |a Wildner |D M. |4 aut | |
| 700 | 1 | |a Stoilova |D D. |4 aut | |
| 773 | 0 | |t Zeitschrift für Kristallographie - Crystalline Materials |d De Gruyter Oldenbourg |g 218/3(2003-03-01), 201-209 |x 2194-4946 |q 218:3<201 |1 2003 |2 218 |o zkri | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/zkri.218.3.201.20751 |q text/html |z Onlinezugriff via DOI |
| 908 | |D 1 |a research article |2 jats | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1524/zkri.218.3.201.20751 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Wildner |D M. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Stoilova |D D. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Zeitschrift für Kristallographie - Crystalline Materials |d De Gruyter Oldenbourg |g 218/3(2003-03-01), 201-209 |x 2194-4946 |q 218:3<201 |1 2003 |2 218 |o zkri | ||
| 900 | 7 | |b CC0 |u http://creativecommons.org/publicdomain/zero/1.0 |2 nationallicence | |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-gruyter | ||