Diaquaiodidotetrasarcosinepotassium: an overview of sarcosine metal halogenide structures.

Michel Fleck, Vahram V Ghazaryan, Aram M Petrosyan

Institut für Mineralogie und Kristallographie, Universität Wien-Geozentrum, Althanstrasse 14, A-1090 Wien, Austria. michel.fleck@univie.ac.at

Acta crystallographica. Section C, Crystal structure communications 2013 Jan

filter terms:

The monoclinic crystal structure of tetrasarcosine potassium iodide dihydrate {or catena-poly[[potassium-tetra-μ-sarcosine-κ(4)O:O';κ(4)O:O] iodide dihydrate]}, {[K(C(3)H(7)NO(2))(4)]I·2H(2)O}(n) or Sar(4)·KI·2H(2)O (space group C2/c), comprises two crystallographically different sarcosine molecules and one water molecule on general positions, and one K(+) cation and one I(-) anion located on twofold axes. The irregular eight-coordinated K(+) polyhedra are connected into infinite chains along [001] via sarcosine molecules. This compound is the first sarcosine metal halogenide salt with a 4:1 ratio. A short overview of other sarcosine metal halogenide salts is presented and relationships to similar glycine salts are discussed.

Citation

Michel Fleck, Vahram V Ghazaryan, Aram M Petrosyan. Diaquaiodidotetrasarcosinepotassium: an overview of sarcosine metal halogenide structures. Acta crystallographica. Section C, Crystal structure communications. 2013 Jan;69(Pt 1):11-6