Enhanced proton conductivity by guest molecule exchange in an acylamide-functionalized metal–organic framework

Abstract

Metal-organic frameworks (MOFs) as a type of proton conductive materials have gained much achievements. Here, an acylamide-functionalized 3D metal-organic framework [Ni3(TPBTC)2(stp)2(H2O)4]·2DMA·32H2O has been successfully constructed via combining Ni(NO3)2, TPBTC (TPBTC...

Novel Red‐Emitting Gd3BW1‐xMoxO9 : Eu3+ Phosphor with High Thermal Stability for Application in UV‐Excited WLEDs and Rapid Visualization of Latent Fingerprints

“…Figure 4 shows the excitation spectra of Gd 2.85 BWO 9 : 0.15Eu 3+ phosphors. When monitoring the emission of Eu 3+ (618 nm, 5 D 0 → 7 F 2 ), the excitation spectrum can be divided into two regions: one is a broad band with a maximum at 277 nm, which is attributed to the charge transfer from the ligand to the metal (LMCT), derived from the O 2− – W 6+ charge transfer transition from the O 2− (2P) orbital excited to the W 6+ (5d) orbital in the WO 6 group and the O 2− – Eu 3+ charge transfer transition from the O 2− (2P) orbital excited to the Eu 3+ (4f) orbital; the other one is composed of a series of narrow bands from 350 to 550 nm, which correspond to the characteristic f–f transitions of Eu 3+ within its 4f 6 configuration [47] . In addition, the presence of the excitation peak of the WO 6 groups in the excitation spectrum of Eu 3+ implies that there is an energy transfer from WO 6 groups of host to Eu 3+ ions in Gd 2.85 BWO 9 : 0.15Eu 3+ phosphor [48] …”

A stable Mn(ii) coordination polymer demonstrating proton conductivity and quantitative sensing of oxytetracycline in aquaculture

“…, H 2 O, imidazole) can be loaded into the structure of CPs. 16–18 Moreover, functional groups ( e.g. , –SO 3 H, –PO 3 H 2 , –COOH and –OH) that can provide protons are introduced into organic ligands to construct hydrophilic skeleton structures with hydrogen bonding networks, thus promoting the establishment of efficacious proton transport routes.…”