Thermal dehydration of Y(TFA)3(H2O)3: Synthesis and molecular structures of [Y(μ,η1:η1-TFA)3(THF)(H2O)]1∞·THF and [Y4(μ3-OH)4(μ,η1:η1-TFA)6(η1-TFA)(η2-TFA)(THF)3(DMSO)(H2O)]·6THF (TFA=trifluoroacetate)

Solution structural characterization of an array of nanoscale aqueous inorganic Ga13−xInx (0 ≤ x ≤ 6) clusters by 1H-NMR and QM computations

“… 53 As stated above, the signal furthest downfield (∼6.8 ppm) corresponds to the protons of the μ 3 -OH, similar to the chemical shift of the μ 3 -OH bridge in the octahedral Y 3+ complex. 58 The final peak at 4.0 ppm represents the μ 2 -OH int protons. This assignment is in agreement with M–(μ 2 -OH)–M bridges reported for other Group 13 complexes.…”

“…The most relevant is the trivalent yttrium complex with a proton signal at 6.05 ppm. 58 Related hydroxide ligands in Th( iv ) and Zn( ii ) compounds also resonate in this region. 56 , 59 Unfortunately, there are not enough examples of μ 3 -OH protons to suggest any trends or regions for specific metals or coordination geometries.…”

Coinage Metal Complexes with Di‐tertiary‐butyl Sulfide as Precursors with Ultra‐Low Decomposition Temperature

“…The FTIR spectra of 1 – 3 show characteristic bands for the ligand t Bu 2 S, the copper and silver complexes also showing additional bands for the trifluoroacetate ligand (Figure S2). The ν as (CO 2 ) appears at 1703 and 1670 cm −1 for 1 and 2 , respectively, indicating a bridging mode of coordination for the TFA group [44] . Expectedly, the 1 H NMR spectra of 2 and 3 in CDCl 3 showed a singlet at δ =1.56 and 1.60 ppm, respectively, for the t Bu group of the thioether.…”

“…The ν as (CO 2 ) appears at 1703 and 1670 cm À 1 for 1 and 2, respectively, indicating a bridging mode of coordination for the TFA group. [44] Expectedly, the 1 H NMR spectra of 2 and 3 in CDCl 3 showed a singlet at δ = 1.56 and 1.60 ppm, respectively, for the t Bu group of the thioether.…”

Heterometallic Na–Y(Ln) trifluoroacetate diglyme complexes as novel single-source precursors for upconverting NaYF4 nanocrystals co-doped with Yb and Er/Tm ions

“…4 However, we recently highlighted the difficulties in making Y(TFA) 3 (H 2 O) 3 anhydrous by thermal dehydration reactions. 6 Formation of anhydrous heterometallic derivatives here thus gains significance. The NaYF 4 : Yb 3+ , Er 3+ /Tm 3+ NCs obtained from these heterometallic precursors are welldispersed in the organic solvents, show a rather narrow particle size distribution and a significant upconversion of NIR light to blue/green/red light.…”