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Crystals 2014, 4(1), 1-10; doi:10.3390/cryst4010001

Synthesis and Crystal Structures of 1,1′-Methylene-bis(imidazolidine-2,4-dione) and Alkali Metal Salts

1
Faculty of Chemistry and Pharmacy, University of Innsbruck, Innsbruck 6020, Austria
2
Institute of Mineralogy and Petrography, University of Innsbruck, Innsbruck 6020, Austria
3
Institute for Structural Engineering and Materials Science, University of Innsbruck, Innsbruck 6020, Austria
*
Author to whom correspondence should be addressed.
Received: 22 October 2013 / Revised: 22 November 2013 / Accepted: 31 December 2013 / Published: 8 January 2014
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Abstract

Single-crystal structures of 1,1′-methylenebis(imidazolidine-2,4-dione) and its sodium and dipotassium salts were determined. Powder X-ray diffraction was also employed to characterize the bulk materials and those phases which did not yield single-crystals. These compounds are of interest for intumescent coatings.
Keywords: hydantoin; intumescent; potassium salt; powder X-ray diffraction; sodium salt hydantoin; intumescent; potassium salt; powder X-ray diffraction; sodium salt
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Salchner, R.; Kahlenberg, V.; Lackner, R.; Wurst, K.; Braun, D.; Laus, G.; Schottenberger, H. Synthesis and Crystal Structures of 1,1′-Methylene-bis(imidazolidine-2,4-dione) and Alkali Metal Salts. Crystals 2014, 4, 1-10.

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