Arkady Ellern

Synthesis of 2,3-dimethylthio-6-pyridyl tetrathiafulvalene: a precursor for a new system involving a direct linkage between a strong donor (D) and a strong acceptor (A)

Abstract A multi-step synthesis of a novel tetrathiafulvalene derivative involving a 4-pyridyl substituent directly attached to the TTF moiety is described.

A unique molecular donor containing two tetrathiafulvalene (TTF) units fused to 1,4 - ditellurin: Synthesis, X-ray structure and cyclic voltammetry

Abstract A new molecular donor composed of two TTF moieties fused to 1,4-ditellurin ( 3 ) has been synthesized and the structure has been characterized by X-ray diffraction. The cyclic voltammetry of both 3 and its methyl analogue 4 display two reversible two-electron oxidation waves.

Novel fluorescent stilbene analogs involving a carbazole moiety

Abstract The synthesis of a series of novel efficient TPA chromophores involving a carbazole moiety from N -( p -formyl)phenylcarbazole precursors and their linear absorption and fluorescent properties are described.

New η-electron donors containing two tetrathiafulvalene units fused to 1,4-dithiine and a conducting charge-transfer complex with tetracyanoquinodimethane

The Synthesis of new electron donors containing two TTF units fused to 1,4-dithiin and a crystal structure of a conducting charge-transfer complex is described.

Comproportionation and redox catalyzed isomerization of Cu(II)(1R,4S,8R,11S-1,4,8,11-tetramethyl-1,4,8,11-tetraaza-cyclotetradecane)2+ in aqueous solutions

Abstract The complex Cu(II)(1R,4S,8R,11S-tmc)2+ comproportionates and isomerizes in the presence of excess of ligand and Cu° in alkaline aqueous solutions to yield Cu(II)(1R,4R,8S,1S-tmc)2+. The visible and EPR spectra of the two complexes as well as their electrochemical properties are reported. The complexes Cu(II)(1R,4R,8S,11S-tmc)(ClO4)2 and [Cu(II)(1R,4S,8R,11S-tmc)]2N3(ClO4)3 were isolated and crystallographically characterized.

Tetrathiafulvalene-thioindigo annelated donor-acceptor system with intramolecular charge transfer

Abstract The synthesis, UV–vis spectra, X-ray structure and redox properties of novel models for intramolecular D–A interaction, which incorporate tetrathiafulvalene and a thioindigo basic chromophoric system, are described.

Base-catalyzed condensation of cyclopentadiene derivatives. Synthesis of fulvalene analogues: strong proaromatic electron acceptors

Abstract A series of proaromatic electron acceptors derived from fulvenes were synthesized from tetrachlorocyclopentadiene and previously unknown 1,4-dicyano- and 1,4-dialkoxycarbonyl-2,3-dimethoxy cyclopentadienes. Two reversible one-electron reductions steps observed for fulvalenes coalesce into one two-electron reduction step upon increasing the length of the conjugating bridge.

Self‐Condensation of 1,3‐Indandione: A Reinvestigation

The self-condensation of 1,3-indandione and bindone in pyridine and acetic anhydride has been reinvestigated. The structures of a number of products have been determined by analysis of their NMR spectra and by X-ray structure determination.

A new strong electron acceptor. The resurrection of 2,2′-biindanylidene-1,3,1′,3′-tetraone (BIT)

Oxidation of 2,2′-biindan-1,3,1′,3′-tetraone leads to 2,2′-biindanylidene-1,3,1′,3′-tetraone, which structure has been unequivocally established.

SYNTHESIS OF NOVEL TRUXENEQUINONE BASED ELECTRON ACCEPTORS

Truxenequinones and their hexacyanotrimethylene derivatives exibit reversible multistep reduction in solution