title: Three novel non-centrosymmetric compounds of glycine: glycine lithium sulfate, glycine nickel dichloride dihydrate and glycine zinc sulfate trihydrate.
abstract: The crystal structures of three compounds of glycine and inorganic materials are presented and discussed. The orthorhombic structure of glycinesulfatodilithium(I), [Li(2)(SO(4))(C(2)H(5)NO(2))](n), consists of corrugated sheets of [LiO(4)] and [SO(4)] tetrahedra. The glycine molecules are located between these sheets. The main features of the monoclinic structure of diaquadichloroglycinenickel(II), [NiCl(2)(C(2)H(5)NO(2))(H(2)O)(2)](n), are helical chains of [NiO(4)Cl(2)] octahedra connected by glycine molecules. The orthorhombic structure of triaquaglycinesulfatozinc(II), [Zn(SO(4))(C(2)H(5)NO(2))(H(2)O)(3)](n), is made up of [O(3)SOZnO(5)] clusters. These clusters are linked by glycine molecules into zigzag chains. All three compounds are examples of non-centrosymmetric glycine compounds.
authors.affiliation: Universität Wien - Geozentrum, Institut für Mineralogie und Kristallographie, Althanstrasse 14, A-1090 Wien, Austria. michel.fleck@univie.ac.at
authors.forename: Michel
authors.initials: M
authors.lastname: Fleck
authors.forename: Ladislav
authors.initials: L
authors.lastname: Bohatý
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D005998:Glycine / Q000031:analogs & derivatives* / Q000737:chemistry*; D006860:Hydrogen Bonding; D008094:Lithium / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D012996:Solutions; D019287:Zinc Sulfate / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D012996:Solutions; D019287:Zinc Sulfate; D008094:Lithium; D005998:Glycine