Dynamic Uptake and Release of Water in the Mixed-Metal EDTA Complex M-3[Yb(EDTA)(CO3)] (M = K, Rb, Cs)
Khai-Nghi Truong; Mueller, P; Dronskowski, R; Englert, U
| HERO ID | 4132651 |
|---|---|
| In Press | No |
| Year | 2017 |
| Title | Dynamic Uptake and Release of Water in the Mixed-Metal EDTA Complex M-3[Yb(EDTA)(CO3)] (M = K, Rb, Cs) |
| Authors | Khai-Nghi Truong; Mueller, P; Dronskowski, R; Englert, U |
| Journal | Crystal Growth & Design |
| Volume | 17 |
| Issue | 1 |
| Page Numbers | 80-88 |
| Abstract | Ethylenediaminetetraacetic acid (H(4)EDTA) acts as a multidentate ligand toward ytterbium nitrate in the presence of M2CO3 (M = K, Rb, Cs). All structurally characterized compounds are three-dimensional coordination polymers with eight-coordinated ytterbium and three alkali metal cations in the asymmetric unit. In the presence of potassium cations, two different phase pure reaction products can be obtained. From a water-containing solution, first a water deficient compound with composition K-3[Yb(EDTA) (CO3)](H2O)center dot H2O precipitates. When kept in the reaction mixture, this kinetic product transforms into the more water rich mixed-metal coordination network K-3[Yb(EDTA) (CO3)](H2O)(4)center dot 2H(2)O; alternatively, the conversion can be achieved by isolating the water-deficient product and immersing it into a water-containing solvent. The reverse reaction, partial dehydration, may be induced by prolonged drying in a desiccator, vacuum treatment, or heating. For the heavier alkali cations Rb+ and Cs+, only one crystalline structure type is found; it is isomorphous to the water-rich potassium derivative. Dehydration leads to amorphous products. |
| Doi | 10.1021/acs.cgd.6b01227 |
| Wosid | WOS:000391417300013 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |