Silver-Mediated Decarboxylative C–S Cross-Coupling of Aliphatic Carboxylic Acids under Mild Conditions

A silver-mediated decarboxylative C–S cross-coupling reaction of aliphatic carboxylic acid is described. This reaction occurs smoothly under mild conditions and shows good tolerance of functional groups. It provides an alternative approach for the synthesis of alkyl aryl sulfides

Luminescence Modulation, White Light Emission, and Energy Transfer in a Family of Lanthanide Metal–Organic Frameworks Based on a Planar π‑Conjugated Ligand

Three isostructural lanthanide metal–organic frameworks (Ln-MOFs), {[Ln₂(BDPO)_1.5(DMA)₃(H₂O)]·5H₂O }_<i>n</i> (<b>1-Ln</b>, Ln = Eu, Gd, and Tb) were constructed by a less-investigated large delocalized π-electron conjugated ligand <i>N</i>,<i>N</i>′-bis­(3,5-dicarboxyphenyl)-oxalamide (H₄BDPO). <b>1-Ln</b> reveals unprecedented trinodal (4,4,6)-connected networks based on binuclear cluster units and planar BDPO linkers. Density functional theory (DFT) and time dependent-DFT calculations were performed on the ground and excited states to provide insight into geometries, the frontier molecular orbitals, and singlet and triplet state energies of H₄BDPO ligand. <b>1-Eu</b> and <b>1-Tb</b> exhibit strong typical red and green emission of Eu³⁺ and Tb³⁺ ions, respectively, originating from the highly efficient energy transfer from BDPO to metal centers, as demonstrated by the comparison of triplet excited energies of ligands and metal ions. Importantly, by doping different concentrations of Eu³⁺ and Tb³⁺ ions, a series of dichromatic doped <b>1-Eu</b>_{<b><i>x</i></b>}<b>Tb</b>_{<b>1‑<i>x</i></b>} MOFs were fabricated, showing an unusual fluent change of luminescent color among green, yellow, orange, and red. Meanwhile, the trimetallic doped <b>1-Eu</b>_{<b>0.0855</b>}<b>Gd</b>_{<b>0.6285</b>}<b>Tb</b>_{<b>0.2860</b>} emits white light, with the correlated color temperature of 5129 K as well as an absolute quantum yield of 22.4%

Additional file 1: Figure S1. of A feasible diagnostic approach for the translocation carrier from the indication of products of conception

MLPA analysis with the kit P070-B2 confirmed the terminal deletions and duplications of Case 1 to 9. Red asterisks indicate the deleted regions, and blue asterisks indicate the duplicated regions. (TIFF 13493 kb

Additional file 1: Figure S1. of A feasible diagnostic approach for the translocation carrier from the indication of products of conception

MLPA analysis with the kit P070-B2 confirmed the terminal deletions and duplications of Case 1 to 9. Red asterisks indicate the deleted regions, and blue asterisks indicate the duplicated regions. (TIFF 13493 kb

Recruitment flow diagram.

<p>Flow diagram demonstrates patient’s recruitment and imaging finding of the double-track sign.</p

Transverse sinus stenosis with double-track sign.

<p>A 37-year old female patient with right transverse sinus stenosis. Hypointense on T1WI (A) and T2WI (B) demonstrated a chronic stage of thrombus, and double-track sign (arrow) was detected on axial Gd-enhanced T1WI (C). Transverse sinus stenosis was confirmed on MRV which showed a linear signal of blood flow in the right transverse sinus (D). (Time from MRI to MRV was 4.5 hours).</p

Transverse sinus occlusion without double-track sign.

<p>A 38-year old male patient with right transverse sinus occlusion. The thrombus was hypointense on T1WI (A) and T2WI (B), and double-track sign was not observed in right transverse sinus on axial Gd-enhanced T1WI (C). Transverse sinus occlusion was confirmed on MRV which showed a lack of blood flow signal in the right transverse sinus (D) (Time from MRI to MRV was 2 hours).</p