Influence of Substituents in the Aromatic Fragment of the Benzoate Anion on the Structures and Compositions of the Formed {Cd–Ln} Complexes

Cadmium-Inspired Self-Polymerization of {LnIIICd2} Units: Structure, Magnetic and Photoluminescent Properties of Novel Trimethylacetate 1D-Polymers (Ln = Sm, Eu, Tb, Dy, Ho, Er, Yb)

“…In all these examples, as in the present study, the high ionic radius of Cd II and its ability to form a large number of coordination bonds at least contributed to the polymerization of Cd x Ln 2 ( x = 1 or 2) moieties and, in some cases, were the main driving force behind the formation of coordination polymers. As expected, molecular complexes with Cd x Ln y pivalate cores were formed upon the addition of “capping ligands”, which blocked the coordination sites of Cd II ions and prevented the formation of coordination bonds between these ions and pivalate oxygen atoms from the neighboring units [ 39 , 41 , 43 , 48 , 49 , 50 ]. Among the heterometallic Cd-Ln carboxylates that do not contain specific capping ligands, only the compound [Cd 2 Eu(bzo) 6 (NO 3 )(MeCN) 2 (THF) 2 ] (bzo − = 3,5-di- tert -butylbenzoate anion) had a molecular structure, and the coordination positions of the terminal Cd II ions were blocked by coordinated THF and MeCN molecules [ 51 ].…”

Molecular and Polymer Ln2M2 (Ln = Eu, Gd, Tb, Dy; M = Zn, Cd) Complexes with Pentafluorobenzoate Anions: The Role of Temperature and Stacking Effects in the Structure; Magnetic and Luminescent Properties

“…The use of co-ligands and/or d-metals in the design of lanthanide complexes leads to structural modification needed to improve their luminescent and/or magnetic properties due to additional antenna effect, control the geometry of the coordination polyhedra of lanthanide atoms, minimize interionic interactions, etc. [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. Fluorinated polycarboxylic acids are used for the synthesis of coordination polymers (CPs) as well as metal organic frameworks (MOFs).…”