Synthesis, characterization and luminescence study of dialkyl[1-arylmethyleneimino-2-naphthonato]gallium complexes: Crystal structure of dimethyl[1-(2-pridyl) methyleneimino-2-naphthonato]gallium

Synthesis, Characterization, Photoluminescence, and Computational Studies of Monoorgano-Gallium and -Indium Complexes Containing Dianionic Tridentate ONE (E = O or S) Schiff Bases

“…The chemistry of organo-gallium/-indium complexes derived from an internally functionalized anionic oxo-ligand has been an active area of extensive current research due to several obvious reasons . These complexes exhibit rich structural diversity − and show interesting photophysical − and antitumor properties. They find applications in catalysis , and as single-source molecular precursors for deposition of metal oxide thin films …”

“…Both anionic (e.g., N -phenylsalicylidineimine) and dianionic ligands (such as Salen) have been employed for the synthesis of complexes of group 13 metals. Organo-gallium and -indium complexes containing these ligands have been isolated in the form of monomers, dimers, and trimers. ,,,, …”

Diorgano-Gallium and -Indium Complexes Derived from Benzoazole Ligands: Synthesis, Characterization, Photoluminescence, and Computational Studies

“…AlQ 3 , a sublimable stable metal tris chelate, is widely used in OLEDs as an electron transport host or a green emitter. − However, relatively low photoluminescence quantum yield and electron mobility of AlQ 3 have led to exploration of luminescent group 13 metal complexes . Gallium complexes and classical − and organometallic derivatives ,, exhibit bright luminescence and in several instances even show higher efficiency than AlQ 3 . Accordingly, gallium complexes are projected as promising candidates to replace aluminum derivatives …”

Blue/green light‐emitting diode based on diethyl[N‐arylmethylenethiobenzahydrazonato]gallium complexes

“…Similar phenomena have been observed previously in EL devices using hole-injection material doped with organogallium complexes. 16,19,20 Complexes 1 and 3 have a similar structure but the emission energy of 1 has an approximately 45 nm blue shift relative to that of 3. The large delocalized conjugation anthryl group in the ligand apparently increases the π * -π energy gap, which is not surprising since the anthryl is more electronegative than the 4-methoxyphenyl, and thus capable of lowing the HOMO level and increasing the HOMO and LOMO gap.…”

“…The driving voltages are 5 and 7 V, respectively, which are much lower than that of tri(1,3-diphenyl-1,3-propanediono)monophenathroline Eu(III) (25 V) 23 and similar to those of tris(8-hydroxyquinolinato)aluminum (below 10 V) 24 and dimethyl(N-arylmethylenethiobenzahydrazonato) gallium complexes. 19 The EL luminescence spectra of the diodes are shown in Fig. 5.…”