Synthesis and characterization of decanuclear Ln(III) cluster of mixed calix[8]arene-phosphonate ligands (Ln=Pr, Nd)

Mixed Tb/Dy coordination ladders based on tetra(carboxymethyl)thiacalix[4]arene: a new avenue towards luminescent molecular nanomagnets

“…Thus, the last value expected for lanthanide-based SMMs would be located in the 2-9 range. 39 As several examples of SMMs lacking the Orbach process have been reported, 84 we tried to t the temperature dependence of the relaxation times excluding Orbach process; however, it was not possible to obtain a satisfying t.…”

“…The generation of coordination polymers with various dimensionalities using tetrasubstituted (tetramercapto)(thia)calix [4]arene derivatives that bear different coordinating sites is well documented. 37 By combining functionalized calix [6]arene bearing amide groups, calix [8]arene, 38,39 unsubstituted calix [4]arene and thiacalix [4]arene derivatives in cone conformation [40][41][42][43] with lanthanides salts or mixtures of 3d/4f, 44-51 different types of clusters have been obtained. Among them, the use of calixarenes bearing carboxylic coordinating sites, for which the lanthanides cations present great affinity, has been reported for the formation of isolated complexes.…”

Construction of zirconium/hafnium-oxo clusters based on a new protection-calix[8]arene

“…17 Based on the multiple hydroxyl groups of TBC[8], Dalgarno, Liao and other groups have reported a series of MOCs, including Gd 8 , Pr 10 , Ln 6 Cr, Ln 6 Co 6 and Pb 12 . 18–22 In addition, bulky calixarenes provide a rigid shell to protect the metal core, and the continuous carbon backbone structure can increase the stability of the clusters. 17,23 However, calixarene-protected ZrOCs (HfOCs) are rare, and the crystal structure of calix[8]arene-based ZrOCs (HfOCs) has not been reported.…”