Structure of the cesium curric ethylaminebis (methylphosphonate) heptahydrate

Hydrothermal synthesis, characterization and crystal structures of two new layered lead(ii) diphosphonates

“…4,9 Only a few structural studies have been reported on metal compounds of aminodiphosphonic acids, RN(CH 2 PO 3 H 2 ) 2 . [10][11][12] The crystal structure of a copper compound with ethylaminebis(methylphosphonate) was reported by Makaranets et al 10 Recently a series of divalent metal compounds with N-methyliminodi(methylenephosphonate) (H 4 L 0 ) were isolated in our laboratory. 11 With the removal of one proton from the ligand, we isolated two layered compounds with the formula of M(H 3 L 0 ) 2 Á2H 2 O (M ¼ Cd, Mn); replacement of two protons from a ligand by a divalent metal ion resulted in Zn(H 2 L 0 )(H 2 O) with a double chain structure and a layered lead diphosphonate, Pb(H 2 L 0 ).…”

The role of deprotonation of the ligand on the structures of metal phosphonates: synthesis, characterization and crystal structures of two new metal diphosphonates with a 1D double chain and a 2D layer structure

“…4, 11 Only a few structural studies have been reported on metal complexes of iminodiphosphonic acids, RN(CH 2 PO 3 H 2 ) 2 . 12- 14 The crystal structure of a copper complex with N-ethyliminobis(methylphosphonate), was reported by Makaranets et al 12 Recently the N-methyliminobis(methylenephosphonic acid) (H 4 L) was structurally determined and its coordination behavior with metal ions has been studied in aqueous solution by potentiometric titration and NMR measurements. Its zinc complex was proposed to be a layered structure.…”

A novel copper organophosphonate with a pore-like 3D framework and Cu–Cu magnetic ordering

“…2 Using ligands with two phosphonic acid groups attached to a diamine group such as (HO 3 PCH 2 NHRNHCH 2 PO 3 H 2 ), several groups have produced a variety of metal phosphonates, such as mononuclear chelate complexes, complexes with a 1D chain structure and a 3D network structure based on dimeric units and pillared layered compounds. 3 The crystal structure of a copper complex with C 2 H 5 N(CH 2 PO 3 H 2 ) 2 was reported by Makaranets et al 4 And very recently, N-methyliminobis(methylenephosphonic acid) (H 4 L) together with Mn(H 3 L) in a 1 : 1 molar ratio, at 150 °C led to the formation of deep blue cubic 1. ‡ A small amount of methanol was layered onto the surface of a mixed solution to increase the pressure in the vessel.…”