Perylenediimides as more than just non-fullerene acceptors: versatile components in organic, hybrid and perovskite solar cells

The most recent advances in the incorporation of perylenediimides in photovoltaic devices are highlighted.

Diels–Alder reaction on perylenediimides: synthesis and theoretical study of core-expanded diimides

(Un)substituted perylenediimides react with (un)functionalized benzynes yielding core-expanded diimides.

Progress in the synthesis of perylene bisimide dyes

Rapid progress in the synthesis of perylene bisimide dyes gave an old scaffold new life.

Metal-free Annulation at the Ortho- and Bay-Positions of Perylene Bisimide Leading to Lateral π-Extension with Strong NIR Absorption

A novel ortho/ bay annulation reaction of perylene bisimide (PBI) has been explored in a single step synthetic procedure using perylene bisimide 1 and 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) in the absence of any metal catalyst. The single crystal solid-state X-ray diffraction structure showed a distorted framework of DBU-fused PBI 2. Compound 2 exhibited intense near-infrared absorption up to 950 nm. Reversible protonation and deprotonation accompany drastic changes in the photophysical characteristics. Further, the reaction of perylene biscarboxyanhydride with DBU offered a caprolactam ring-substituted perylene bisimide 3.

Base-driven keto–enol anion tautomerism of a perylene diimide derivative in DMF solution

A perylene diimide derivative (d-THBPDI) containing twisted heptatomic biphenyl substituents in the bay positions exhibited base (hydrazine, 1,2-ethylenediamine, triethylamine and K₂CO₃)-driven keto–enol anion tautomerism in DMF solution.

Optical and photophysical properties of anisole- and cyanobenzene-substituted perylene diimides

Substituent and solvent effects on the one- and two-photon absorption and the photophysical properties of eight bay-substituted perylene-diimides are reported and analyzed.

Novel derivatives of 1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxylic acid: synthesis, electrochemical and optical properties

Facile synthesis and opto-electrochemical properties of various unsymmetrically “peri”-substituted perylene derivatives, with four chloro-atoms at the bay-positions, have been reported.

Direct alkylthio-functionalization of unsubstituted perylenediimides

A simple fluoride-mediated reaction allows the synthesis of 1,6-dialkylthioperylenediimides from unsubstituted perylenediimides under very mild conditions.

Effect of the ortho alkylation of perylene bisimides on the alignment and self-assembly properties

The effect of the ortho alkylation of perylene bisimides on the alignment and self-assembly properties has been studied. It was found that the dichroic properties of perylene bisimides in a liquid crystal host can be reversed with a single synthetic step by ortho alkylation. Furthermore, a solvent-induced growth of ultralong organic n-type semiconducting fibrils from non-ortho-alkylated perylene bisimide was observed. Ortho substitution of the perylene bisimide core alters the mode of fibrillar growth, leading to isotropic crystallization.