Arylazopyrazole-functionalized photoswitchable octanuclear Zn(II)-silsesquioxane nanocage

New Magnetic and Luminescent Dy(III) and Dy(III)/Y(III) Based Tetranuclear Silsesquioxane Cages

“…The synthesis of anionic lanthanide-based CLMSs has been performed by adapting the previously described 11 procedure consisting in two-step reaction involving firstly the in-situ formation of phenylsiloxanolate 1a). It should be noted that ligands of such particular type is a rare feature for CLMSs, reported earlier for titanium-, 12 iron-, 13 cobalt-, 14 zinc-based 15 silsesquioxanes. The core of 1 has a shape of a distorted square in which the Ln 3+ ions are linked through bridging oxygen atoms (Figure 1b).…”

“…It consists of a (Y 0.75 Dy 0.25 O 1.5 ) 4 core situated in the middle inserted between two cyclic tetraphenylcyclotetrasiloxanolate ligands (Figure 1a). It should be noted that ligands of such particular type is a rare feature for CLMSs, reported earlier for titanium‐, [12] iron‐, [13] cobalt‐, [14] zinc‐based [15] silsesquioxanes. The core of 1 has a shape of a distorted square in which the Ln 3+ ions are linked through bridging oxygen atoms (Figure 1b).…”

Temperature sensing in Tb3+/Eu3+-based tetranuclear silsesquioxane cages with tunable emission

“…), transition metal ions (such as Pt 2+/4+ , Cr 3+ , Mn 2+ , Ti 3+ , Fe 3+ , Ni 2+ , Cu 2+ or their combinations) or lanthanides (such as Yb 3+ , Nd 3+ , Er 3+ , Ce 3+ , Eu 3+ , Sm 3+ or Pr 3+ ) usually situated in the core of CLMSs not only ensures the assembly of the whole architecture but also brings functional physical and chemical properties. 5 Among those, CLMSs have been widely investigated as molecule-based models for catalysis 6 or as a particular family of molecule-based magnets. 7 Unexpectedly, the optical properties of CLMSs have been investigated only scarcely.…”

Double-Decker Silsesquioxanes Self-Assembled in One-Dimensional Coordination Polymeric Nanofibers with Emission Properties

“…Moreover, both novel DDSQs present an E carbon–carbon double bond that can be isomerized to the Z form ( Scheme 2 ), as previously reported for mono- and octafunctionalized silsesquioxanes. 31 , 48 It is known that UV light irradiation may promote E to Z isomerization of the vinyl group. The E to Z isomerization was monitored via UV–visible absorption and emission investigation of the samples with terpyridine moieties as it can be seen in Figure 6 and Figures S39 and S40 in the Supporting Information .…”