Abstract
The crystal structures of the isomorphic tetragonalcompounds NMe4MnFe(CN)6 ·8 H2O (a = 1067.0, c = 1056.8 pm ) and NMe4Mn2(CN)6 · 8 H2O (a = 1066.9, c = 1064.1 pm ), space group P4/n, Z = 2 , were determined (R = 0 .03). The structure is built up from slightly distorted M(CN)6 3− octahedra and square planar Mn(H2O)4 2+ cations, stacked one upon the other in nearly eclipsed positions to form cyanobridged chains - Mn -NC -Mm -CN -along [001]. The average distances in the compounds are: Fe -C = 193.8 (Mn -C -199.3) pm, C -N = 114.7 (114.7 ) pm , Mn -N = 220 .2 (218 .2) pm, Mn -O = 218 .8 (218 .5) pm. The differences of bridge lengths are discussed, as well as the orientation and contact distances of the tetramethylammonium cations. These and additional crystal water, forming H -bonded(H2O)4 rings, occupy positions in the center of elpasolite- like sub cells, which result from O -H ··· N bridging between different chains. Some further relations to the structures of elpasolite and prussian blue are pointed out.
Bibliography
Henkel, H., & Babel, D. (1984). Die Kettenstruktur der hydratisierten Tetramethylammoniummangan(II)-hexacyanometallate(III) NMe4MnFe(CN)6 · 8 H2O und NMe4Mn2(CN)6 · 8 H2O / The Chain Structure of the Hydrated Tetramethylammoniummanganese(II)-hexacyanom etallates(III) NMe4MnFe(CN)6 · 8 H2O und NMe4Mn2(CN)6 · 8 H2O. Zeitschrift Für Naturforschung B, 39(7), 880â886.
Dates
Type | When |
---|---|
Created | 10 years, 6 months ago (Feb. 21, 2015, 6:33 a.m.) |
Deposited | 4 years, 2 months ago (June 23, 2021, 8:17 a.m.) |
Indexed | 1 year, 2 months ago (June 5, 2024, 6:56 a.m.) |
Issued | 41 years, 1 month ago (July 1, 1984) |
Published | 41 years, 1 month ago (July 1, 1984) |
Published Online | 11 years, 2 months ago (June 2, 2014) |
Published Print | 41 years, 1 month ago (July 1, 1984) |
@article{Henkel_1984, title={Die Kettenstruktur der hydratisierten Tetramethylammoniummangan(II)-hexacyanometallate(III) NMe4MnFe(CN)6 · 8 H2O und NMe4Mn2(CN)6 · 8 H2O / The Chain Structure of the Hydrated Tetramethylammoniummanganese(II)-hexacyanom etallates(III) NMe4MnFe(CN)6 · 8 H2O und NMe4Mn2(CN)6 · 8 H2O}, volume={39}, ISSN={0932-0776}, url={http://dx.doi.org/10.1515/znb-1984-0708}, DOI={10.1515/znb-1984-0708}, number={7}, journal={Zeitschrift für Naturforschung B}, publisher={Walter de Gruyter GmbH}, author={Henkel, H. and Babel, D.}, year={1984}, month=jul, pages={880–886} }