Abstract An electrochemical method for the synthesis of phenanthridinones through constant-potential electrolysis (CPE) mediated by Bu4NI (TBAI) is reported. The protocol metal and oxidant free, proceeds with 100% current efficiency. TBAI plays a dual role as both redox catalyst supporting electrolyte. intramolecular C–H activation under mild reaction conditions short time electrochemically gen...

A spectrophotometric study concerning the interactoin between iodine and bromine with tetrabutylammonium iodide (TBAI), tetrabutyl- ammonium bromide (TBABr) and cryptand 222 (C222) has been performed in dichloromethane solution at 25°C. The results are indicative of the formation of TBA+X3- and  C222X+X3-  t...

Herein, we report the application of four amino-tris(phenolate)-based metal complexes incorporating Ti(IV) or Zr(IV) centres (2a-3b) as homogeneous catalysts for conversion CO2 and epoxides into cyclic carbonates. The were synthesised, characterised then evaluated in combination with tetrabutylammonium iodide, bromide chloride binary catalytic systems reaction 1,2-epoxyhexane epoxide substrate ...

Vapor-liquid equilibrium and density measurements have been performed on 1.00-5.89 m tetrabutylammonium bromide (TBAB) in mixtures of 2-propanoland water. The VLE experiments were performed using a modified Othmer still a t ambient pressure. The effect of salt on the relative volatility of 2-propanol was evaluated at molalities of 1.00,1.79, and 5.89 over the full range of solvent composition. ...

This study investigated the effects of four structurally different quaternary ammonium salts (QASs), i.e., tetrabutylammonium tetrafluoroborate [TBA][BF4], tetrahexylammonium tetrafluoroborate [THA][BF4], tetrabutylammonium hexafluorophosphate [TBA][PF6], and tetrahexylammonium hexafluorophosphate [THA][PF6], on the growth and development of three weed species: gallant soldier (Galinsoga parvif...

Novel solar power technologies are constantly evolving and improving, this is seen as a potential way to meet the increasing demand for electricity energy on global scale. Quantum dot cells (QDSCs) one of most optimistic third‐generation cells. Because superior qualities, such its size, tuneable bandgap, high stability, extremely low cost, quantum dots (QDs) have drawn lot attention in photovol...

A set of trisubstituted guanidine ligands L1H2–L4H2 with general formula (iPrHN)2CNR (R = Ph (L1H2), R 2,4,6-Me3C6H2(L2H2), p-BrC6H4(L3H2), (C5H4)Fe(C5H5), Fc (L4H2)) was employed to synthesize a family mono- and dinuclear asymmetric methyl aluminum guanidinato compounds ((L2H)AlMe2 (1), (L4H)AlMe2 (2), (L1)Al2Me4 (3), (L2)Al2Me4 (4), (L3)Al2Me4 (5), (L4)Al2Me4 (6), (L1H)2AlMe (7), (L2H)2AlMe (...

Tetraethyl-, tetrapropyl-, and tetrabutylammonium ions are capillary-active on the interface water-mercury. In the adsorbed state they increase Brdicka and presodium currents. These currents drop sharply at potentials where tetrabutylammonium ions are desorbed, these potentials being -1.60, -1.66, -1.72, and -1.79 V versus the saturated calomel electrode (SCE) at tetrabutylammonium concentratio...