Solvothermal synthesis, crystal structure, magnetic and luminescent properties of (H3O)6·[Co4(H2O)4(HPMIDA)2(PMIDA)2)]·2H2O

Molecular Metal Phosphonates

“…35,45,68,70,74,85,146,218,220 A This compound contains four Co II ions, two [HPMIDA] − , and two [PMIDA] 2− ligands. 245 The four Co II ions lie in a plane and are bound by tetradentate chelating PMIDA, along with two HPMIDA ligands ( Figure 107). The reaction of {Co(Piv) 2 } n , Na 2 O 3 PPh, Hmhp, and NaPiv afforded a heterometallic Na 6 Co 5 complex, [(μ-HPiv) 2 (μ 2 -Hmhp) 4 Na 6 Co 5 (μ 6 ,η 2 -O 3 PPh) 2 (μ 3 ,η 2 -Piv) 2 (μ 3 -Piv) 3 (μ-Piv) 7 ] 2 · (C 10 H 22 ) [Hmhp = 6-methyl-2-pyridone, Piv = t-BuCO 2 − ].…”

Alkaline-earth metal phosphonocarboxylates: synthesis, structures, chirality, and luminescence properties

“…Later, other metals were also employed and structures with vanadium, 30 divalent metals, [31][32][33][34][35][36][37][38] and lanthanides 39 were described. A combination of PMIDA with auxiliary ligands like 1,10-phenanthroline to decrease the coordination possibilities of the central atom enabled the preparation of other new materials.…”

“…Regarding divalent metals, the PMIDA ligand was used for the preparation of solid phosphonates with copper, 40,47 cobalt, 34,35,41,42,45,46,48 zinc, 31,38,44 lead, 32 manganese, 33,42,43,46,47 cadmium, 46 nickel, 35,37 and iron(II). 36 To the best of our knowledge, only three alkaline-earth metal PMIDA coordination polymers have been reported up to now, 49,50 although it has been shown that these metalsdue to their wide coordination possibilitiesform structurally interesting phosphonates ranging from one-dimensional 11 to layered 51,52 to three-dimensional 53 compounds.…”

Assembly of Lipophilic Tetranuclear (Cu4 and Zn4) Molecular Metallophosphonates from 2,4,6-Triisopropylphenylphosponic Acid and Pyrazole Ligands

“…The utility of such metal phosphonates in applications ranging from catalysis to sorption is well documented . In contrast to the widespread use of phosphonate ligands in the preparation of compounds with extended structures, their application in the preparation of molecular compounds containing main-group and transition metals is more recent. − We have shown that phosphonic acids, in conjunction with ancillary ligands such as pyrazole, are extremely effective for the preparation of soluble molecular multimetal phosphonates. Thus, for example, we have been able to isolate dodecanuclear 3a and decanuclear 3b copper(II) clusters in a three-component reaction involving a Cu(II) salt, tert -butylphosphonic acid, and pyrazole ligands.…”