Practical Syntheses and Luminescent Properties of Arene‐substituted Arsines

Abstract

Aryldiphenylarsines, diarylphenylarsines, and triarylarsines were synthesized by practical methods to utilize the heavy atom effect for phosphorescence. 1‐Naphthyl, 2‐naphthyl, 9‐phenanthryl, and 1‐pyrenyl groups were introduced in the present work. The obtained arene‐substituted arsines showed phosphorescence in solutions at 77 K. On the other hand, 1‐pyrenyl‐substituted arsines showed only fluorescence in the solid states at 77 K, whereas the others exhibited phosphorescence. In addition, oxidation of the arsenic atom promoted fluorescence instead of phosphorescence. X‐ray crystallography and computational calculations were conducted to understand the luminescence behaviors of the arene‐substituted arsines.

Intensive emission of Eu(iii) β-diketonate complexes with arsine oxide ligands

“…Hexafluoroacetylacetone (hfa) was purchased from Tokyo Kasei, Inc. (Tokyo, Japan). Triphenylarsine oxide ( 1 ), 15 triphenylphosphine oxide ( 2 ), 16 9-phenyl-9-arsafluorene oxide ( 3 ), 7 tri(1-naphthyl)arsine oxide ( 4 ), 17 Eu(hfa) 3 (H 2 O) 2 , 4 Gd(hfa) 3 (H 2 O) 2 , 4 Eu 3+ -complex of 2 ( 2-a ), 11 and Gd 3+ -complex of 2 ( 2-b ) 18 were synthesized according to literature procedures.…”

Synthesis and Photophysical Properties of Heavier Pnictogen Complexes

“…Naka and co-workers synthesized 12 arene-substituted arsines, starting from nonvolatile arsenic precursors such as iododiphenylarsine (Ph 2 AsI), diiodophenyl arsine (PhAsI 2 ), and tribromoarsine (AsBr 3 ), to study the effect of As on photoluminescence properties. [89] The nonvolatile arsenic precursors were treated with the corresponding aryllithium reagents (ArLi) to give the products in moderate to good yields (Scheme 11). The presence of different arene groups on the As center does not affect the longest absorption maxima (λ abs ) of 57-60 in UV-Vis absorption.…”

Emission Properties of Eu(III) Complexes Containing Arsine and Phosphine Ligands with Annulated Structures

“…We have developed practical As–C bond formation reactions to synthesize various organoarsenic compounds . While creating the arsine library through our synthesis methods, we reported that the effect of the electronic structure multiplied by the heavy atom effect of arsenic modulates the ISC and phosphorescence process. , Annulated organoarsenic compounds exhibited diverse emission properties caused by modulation of the excited singlet (S n , n = 1, 2, 3...) and T n states, as well as the heavy atom effect of arsenic. , …”