A highly luminescent and highly oxygen-sensitive Tb(iii) complex with a tris-aryloxide functionalised 1,4,7-triazacyclononane ligand

Abstract

This communication presents a new terbium(III) complex that shows the highest luminescence quantum yield among the oxygen-sensitive lanthanide complexes (Φ = 0.91 under N2, Φ = 0.054 under air).

Near‐IR Luminescent YbIII Coordination Polymers Composed of Pyrene Derivatives for Thermostable Oxygen Sensors

“…In contrast, Yb III -TIAPy prepared by complexation ( Figure 3c)s howed am onotonicm ass decrease between 20 and 300 8Cd ue to al oss of adsorbed argon.T he mass loss for this specimen at 400 8Cw as 11.4 %. The sudden change in the inclinations of the TGAd ata at around5 00 8Ci n the traces for Yb III -TBAPy and Yb III -TIAPy can be attributedt o decompositiono ft he network structuresa nd partial volatilization of TBAPy and TIAPy.The decomposition temperatures (dp) for these materials are much higher than those previously reported for one-and two-dimensional Eu III coordination polymers (dp for [Eu(hfa) 3 (dpbp)] n (hfa:h exafluoroacetylacetonate, dpbp:1 ,1'-biphenyl-4,4'-diylbis(diphenylphosphine oxide): 306 8C; dp for [Eu 3 (hfa) 9 (tppb)] n (tppb:t ris(4-diphenylphosphorylphenyl)benzene): 354 8C). [25][26][27] Hence, the Yb-TBAPy and Yb-TIAPy frameworks are evidently thermally stable at high temperatures.…”

Multifunctional Lanthanide Complexes Based on Tetraazacyclolamidophenol Ligand with Field‐Induced Slow Magnetic Relaxation, Luminescent and SHG Properties

“…Syntheses: The ligand N , N′ , N′′ , N′′′ ‐Tetra(3,5‐dimethyl‐2‐hydroxybenzyl)‐1,4,7,10‐tetraazacyclododecane (Scheme , H 4 L ) was synthesized according to the reference method. [12c]…”

“…Recently, a series of strong luminescent lanthanide complexes derived from the 1,4,7,10‐teraazacyclododecane‐ or 1,4,7‐triazacyclononane‐based tetrakis‐phenol ligands have been reported . Therefore, the reaction of lanthanide ions and cyclolamidophenol ligands is a new synthetic strategy toward the preparation of magneto‐luminescent complexes.…”

Lanthanide complexes as redox and ROS/RNS probes: A new paradigm that makes use of redox-reactive and redox non-innocent ligands

“…This was achieved by using a mixture of 1 and its europium analog in aqueous media, through the ratio of the Eu (603-610 nm) to Tb emissions (515-525 nm). Other monometallic complexes operating in a similar way were reported, and were mostly developed on DOTA platforms [102][103][104][105][106][107][108][109][110].…”