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Licensed Unlicensed Requires Authentication Published by De Gruyter September 21, 2018

A new stacking variant of Na2Pt(OH)6

Gohil S. Thakur, Hans Reuter, Claudia Felser and Martin Jansen


A new stacking variant of sodium hexa-hydroxo platinate(IV), Na2Pt(OH)6, was synthesized and its structure elucidated through X-ray diffraction. The new polymorph was prepared by direct reaction of PtO2 with an excess of NaOH solution applying elevated oxygen pressure at 300°C. The structure consists of layers of edge sharing Pt(OH)6 and Na(OH)6 octahedra. These layers are separated by an edge-to-edge distance of ~2.4 Å. The packing of the hydroxide ions corresponds to the hcp sequence, the title compound thus may be regarded a cation ordered variant of the Brucite structure type. During heating above T~300°C all constitutional water is released, and anhydrous Na2PtO3 remains as the solid residue.

Dedicated to: Professor Bernt Krebs on the occasion of his 80th birthday.


[1] A. Rabenau, Angew. Chem. Int. Ed. Engl.1985, 24, 1026.10.1002/anie.198510261Search in Google Scholar

[2] D. R. Modeshia, R. I. Walton, Chem. Soc. Rev.2010, 39, 4303.10.1039/b904702fSearch in Google Scholar PubMed

[3] G. Demazeau, A. Largeteau, Z. Anorg. Allg. Chem.2015, 641, 159.10.1002/zaac.201400515Search in Google Scholar

[4] D. E. Bugaris, M. D. Smith, H.-C. zur Loye, Angew. Chem. Int. Ed.2012, 51, 3780.10.1002/anie.201102676Search in Google Scholar PubMed

[5] M. Jansen, M. Bortz, Z. Anorg. Allg. Chem.1989, 579, 123.10.1002/zaac.19895790114Search in Google Scholar

[6] J. Bellucci, Z. Anorg. Chem.1905, 44, 179.Search in Google Scholar

[7] M. Trömel, E. Lupprich, Z. Anorg. Allg. Chem.1975, 414, 160.10.1002/zaac.19754140207Search in Google Scholar

[8] V. G. Bandel, M. Müllner, M. Trömel, Z. Anorg. Allg. Chem.1979, 463, 5.10.1002/zaac.19794530602Search in Google Scholar

[9] D. E. Bugaris, M. D. Smith, H.-C. zur Loye, Inorg. Chem.2013, 52, 3836.10.1021/ic302439bSearch in Google Scholar PubMed

[10] C. Linke, M. Jansen, Z. Anorg. Allg. Chem.1997, 623, 1441.10.1002/zaac.19976230920Search in Google Scholar

[11] Topas (version, General Profile and Structure Analysis Software for Powder Diffraction Data, Bruker AXS GmbH, Karlsruhe (Germany) 2012.Search in Google Scholar

[12] Apex 2, Suite of Crystallographic Software, Bruker AXS Inc., Madison, Wisconsin (USA) 2008.Search in Google Scholar

[13] G. M. Sheldrick, Sadabs, Bruker AXS Inc., Madison, Wisconsin (USA) 2008.Search in Google Scholar

[14] G. M. Sheldrick, Acta Crystallogr.2008, A34, 112.10.1107/S0108767307043930Search in Google Scholar PubMed

[15] T. Hahn (Ed.), International Tables for Crystallography, 4th ed., Vol. A, Space-Group Symmetry, Kluwer Academic Publishers, Dordrecht 1996.Search in Google Scholar

[16] K. Brandenburg, Diamond, Crystal and Molecular Visualization, Crystal Impact, Bonn (Germany) 2006.Search in Google Scholar

Received: 2018-06-25
Accepted: 2018-08-30
Published Online: 2018-09-21
Published in Print: 2018-11-27

©2018 Walter de Gruyter GmbH, Berlin/Boston

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