Density functional theory (DFT) simulations were used to determine the binding strength of 12 electron-donating analytes to the zinc metal center of a zinc phthalocyanine molecule (ZnPc monomer). The analyte binding strengths were compared to the analytes' enthalpies of complex formation with boron trifluoride (BF(3)), which is a direct measure of their electron donating ability or Lewis basici...

In this study, the preparation of some novel metallophthalocyanine (MPcs) complexes substituted with octakis(mercaptopropylisobutyl-POSS) functional group was achieved. By the reaction of [1-(3-mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.1(3,9).1(5,15).1(7,13)]octasiloxane 1 with 4,5-dichloro-1,2-dicyanobenzene 2 in THF as the solvent in the presence of K2CO3 as the base, the phth...

Dye sensitization on semiconductor catalyst TiO2 was performed with four different metallophthalocyanine (MPc) derivates (M: Zn, Cu, Co, and Si) using a modified sol-gel method. MPc derivatives were loaded at 1% mass ratio aiming to increase its photocatalytic action shift the light absorption higher UV region (365 nm). Non-ionic surfactant Triton X-100 (TX-100) used obtain homogenous mesa pore...

A mini-review of the reported biosensor research occurring in South Africa evidences a strong emphasis on electrochemical sensor research, guided by the opportunities this transduction platform holds for low-cost and robust sensing of numerous targets. Many of the reported publications centre on fundamental research into the signal transduction method, using model biorecognition elements, in li...

Covalent organic frameworks (COFs) with implemented electroactive moieties and coherent conduction channels are found to be competent for the transport of charges, in a similar manner as conventional (semi)conductors.Unlike densely packed polymer layers that used electronics, crystallinity COFs is mostly supported by covalent bonds potentially boost communication stability.The voids inside fram...

•Polycondensation enables designed synthesis of n-type organic/polymeric semiconductors•The frameworks reduce reorganization energy and induce interlayer electronic coupling•The achieve exceptional electron mobility•Electrons move in the framework lateral vertical directions In contrast to inorganic semiconductors, semiconductors usually have limited mobilities owing their structural nature. En...