Coordination chemistry of lanthanide ions with X-(CH2-COO-)2 (X = O, NH, S) ligands: The leading role of X as carboxylate-connecting group

Self-Assembly of Lanthanide–Aluminum Cluster-Organic Frameworks with Magnetocaloric Effect and Luminescence

“…However, the deviation between the two magnetic entropy changes could be attributed to the presence of antiferromagnetic interaction between Gd III ions and Al III ions, as well. Accordingly, the Gd 6 Al cluster demonstrates its potential for practical applications as a magnetic cooling system. − …”

Extended isomerism in heteronuclear metal–organic frameworks: synthetic strategies and crystal structures of lanthanide–cobalt–oxydiacetate systems

“…Oxydiacetato (O–(CH 2 –COO − ) 2 , oda 2− ) is a versatile tridentate ligand that bears five donor oxygen atoms and forms a wide variety of mononuclear and polynuclear complexes with both d and f transition metal ions. 1–3 The flexible tridentate O-donor motif, formed by the simultaneous coordination of one ether and two carboxylate groups, makes this ligand especially suited for Ln, i.e. , lanthanide and yttrium ions, affording the stable nine-coordinated anionic unit [Ln(oda) 3 ] 3− .…”

“…, lanthanide and yttrium ions, affording the stable nine-coordinated anionic unit [Ln(oda) 3 ] 3− . 2,4–17 This building block has also been extensively used as a synthon to prepare heteronuclear complexes. 2,18–48 In the formed [Ln 2 M 3 (oda) 6 (H 2 O) 6 ]· n H 2 O, the [Ln(oda) 3 ] 3− units remain undisturbed but are additionally connected through free carboxylate oxygen atoms to M( ii ) cations.…”

“…2,4–17 This building block has also been extensively used as a synthon to prepare heteronuclear complexes. 2,18–48 In the formed [Ln 2 M 3 (oda) 6 (H 2 O) 6 ]· n H 2 O, the [Ln(oda) 3 ] 3− units remain undisturbed but are additionally connected through free carboxylate oxygen atoms to M( ii ) cations. The synthesis and structural characterization of these heteronuclear compounds has been expanded to all lanthanide ions and Y and to various +2 metal ions.…”

“…The synthesis and structural characterization of these heteronuclear compounds has been expanded to all lanthanide ions and Y and to various +2 metal ions. 2,18–48 Interestingly, this large family of heteronuclear compounds comprises two structural motifs with slight differences, which are attributed to the geometry of the carboxylate bridge that connects [Ln(oda) 3 ] 3− to M( ii ) cations. If a μ- syn – anti carboxylate bridge is formed, a porous hexagonal structure belonging to the P 6/ mcc space group is obtained.…”