Oligomeric Acceptor: A "Two-in-One" Strategy to Bridge Small Molecules and Polymers for Stable Solar Devices.

Oligomeric acceptors are expected to combine the advantages of both highly developed small molecular and polymeric acceptors. However, organic solar cells (OSCs) based on oligomers lag far behind due to their slow development and low diversity. Here, three oligomeric acceptors were produced through oligomerization of small molecules.

Method for Synthesis of Zeolitic Imidazolate Framework-Derived LiCoO/CNTs@AlF with Enhanced Lithium Storage Capacity.

Metal-organic framework-derived lithium cobaltate nanoparticles were fabricated by annealing of the ZIF-67 precursor with LiCO under air, followed by homogeneous AlF coating and carbon nanotubes (CNTs) wrapping. The as-prepared AlF-coated LiCoO/CNTs electrode can act as a potential cathode for enhanced lithium storage at both room temperature and an elevated temperature of 50 °C.

Four new Zn(ii) and Cd(ii) coordination polymers using two amide-like aromatic multi-carboxylate ligands: synthesis, structures and lithium-selenium batteries application.

Four new coordination polymers, {[Zn(3-PBI)(HO)]·2DMF} (1), [Cd(3-PBI)(DMF)] (2), {[Zn(μ-O)(4-PBI)]·3DMF} (3), {[Cd(4-PBI)(HO)]·13HO} (4), have been constructed from two isomeric flexible multi-carboxylate ligands, 3-HPBI = 5-(3-(pyridin-3-yl)benzamido)isophthalic acid and 4-HPBI = 5-(3-(pyridin-4-yl)benzamido)isophthalic acid. Structural analysis reveals that compound 1 is a one-dimensional (1D) ladder-like chain assembled by Zn(ii) ions and 3-PBI ligands, which further extend into a 3D supramolecular structure through π⋯π stacking and interlayer (O-H⋯O) hydrogen bonding interactions. In compound 2, Cd metal ions are connected by carboxylate groups to form [Cd(COO)] secondary building units (SBUs).