Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 4 (April 2006)

metal-organic compounds

em1005 scheme

Acta Cryst. (2006). C62, m122-m125 [ doi:10.1107/S0108270106003477 ]

Two new non-centrosymmetric lithium salts of glycine: bis(glycine) lithium chromate monohydrate and bis(glycine) lithium molybdate

M. Fleck, K. Schwendtner and A. Hensler

Abstract: In bis(glycine) lithium chromate monohydrate {systematic name: poly[aquadi- [mu] -glycinato- [mu] -tetraoxochromato(VI)-dilithium(I)]}, [CrLi₂(C₂H₅NO₂)₂O₄(H₂O)]_n, (I) (space group P2₁2₁2₁), and bis(glycine) lithium molybdate {systematic name: poly[di- [mu] -glycinato- [mu] -tetraoxomolybdato(VI)-dilithium(I)]}, [Li₂Mo(C₂H₅NO₂)₂O₄]_n, (II) (space group P2₁), all atoms are located on general positions. The crystal structure of (I) is characterized by infinite chains of corner-sharing [LiO₄] tetrahedra, which are connected by glycine molecules to form layers. [CrO₄] tetrahedra are attached to the [LiO₄] tetrahedra. Compound (II) contains dimers of [LiO₄] tetrahedra which are connected by [MoO₄] tetrahedra to form chains, which are in turn connected by glycine molecules to form double layers.

Formula: [CrLi₂(C₂H₅NO₂)₂O₄(H₂O)] and [Li₂Mo(C₂H₅NO₂)₂O₄]


	Structure factor file (CIF format) (196.3 kbytes) [ doi:10.1107/S0108270106003477/em1005Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (110.7 kbytes) [ doi:10.1107/S0108270106003477/em1005IIsup3.hkl ] Contains datablock II

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