Synthesis and structure of cesium complexes of nitrilotris(methylenephosphonic) acid [Cs-μ{sup 6}-NH(CH{sub 2}PO{sub 3}){sub 3}H{sub 4}] and [Cs{sub 2}-μ{sup 10}-NH(CH{sub 2}PO{sub 3}H){sub 3}] · H{sub 2}O
- Lobachevsky State University of Nizhny Novgorod (Russian Federation)
- Russian Academy of Sciences, Physical–Technical Institute, Ural Branch (Russian Federation)
- Udmurt State University (Russian Federation)
3D coordination polymers cesium nitrilotris(methylenephosphonate) and dicesium nitrilotris( methylenephosphonate) are synthesized and their crystal structure is determined. In the crystal of [Cs-μ{sup 6}-NH(CH{sub 2}PO{sub 3}){sub 3}H{sub 4}] (space group P, Z = 2), cesium atoms occupy two crystallographically inequivalent positions with c.n. = 10 and c.n. = 14. The phosphonate ligand plays the bridging function; its denticity is nine. The crystal packing consists of alternating layers of Cs atoms in different environments with layers of ligand molecules between them. A ligand is bound to three Cs atoms of one layer and three Cs atoms of another layer. In the crystal of [Cs{sub 2}-μ{sup 10}-NH(CH{sub 2}PO{sub 3}H){sub 3}] · H{sub 2}O (space group P, Z = 2), the complex has a dimeric structure: the bridging phosphonate ligand coordinates Cs to form a three-dimensional Cs{sub 4}О{sub 6} cluster. The denticity of the ligand is equal to nine; the coordination numbers of cesium atoms are seven and nine. Two-dimensional corrugated layers of Cs{sub 4}О{sub 6} clusters lie in the (002) plane, and layers of ligand molecules are located between them. Each ligand molecule coordinates eight Cs atoms of one layer and two Cs atoms of the neighboring layer.
- OSTI ID:
- 22758361
- Journal Information:
- Crystallography Reports, Vol. 62, Issue 4; Other Information: Copyright (c) 2017 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis and structure of decaaqua-hexasodium-calcium bis-nitrilotris(methylenephosphonate) bis(hexaaquasodium) tetrahydrate [CaNa{sub 6}{NH(CH_2PO_3)_3}{sub 2}(H{sub 2}O){sub 10}][Na(H{sub 2}O){sub 6}]{sub 2} · 4H{sub 2}O
Structure of complexes of nitrilo tris methylene phosphonic acid with copper, [CuN(CH{sub 2}PO{sub 3}){sub 3}(H{sub 2}O){sub 3}] and Na{sub 4}[CuN(CH{sub 2}PO{sub 3}){sub 3}]{sub 2} · 19H{sub 2}O, as bactericides and inhibitors of scaling and corrosion