The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Bright Luminescent Platinum(II)-Biaryl Emitters Synthesized Without Air-Sensitive Reagents》. Authors are Wakasugi, Chuei; Yoshida, Masaki; Sameera, W. M. C.; Shigeta, Yasuhiro; Kobayashi, Atsushi; Kato, Masako.The article about the compound:Dichloro(1,5-cyclooctadiene)platinum(II)cas:12080-32-9,SMILESS:C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-]).Application of 12080-32-9. Through the article, more information about this compound (cas:12080-32-9) is conveyed.
Transition-metal complexes bearing biaryl-2,2′-diyl ligands tend to show intense luminescence. However, difficulties in synthesis have prevented their further functionalization and practical applications. Herein, a series of platinum(II) complexes bearing biaryl-2,2′-diyl ligands, which have never been prepared in air, were synthesized through transmetalation and successive cyclometalation of biarylboronic acids. This approach does not require any air- or moisture-sensitive reagents and features a simple synthesis even in air. The resulting (Et4N)2[Pt(m,n-F2bph)(CN)2] (m,n-F2bph=m,n-difluorobiphenyl-2,2′-diyl) complexes exhibit intense green emissions with high quantum efficiencies of up to 0.80 at 298 K. The emission spectral fitting and variable-temperature emission lifetime measurements indicate that the high quantum efficiency was achieved because of the tight packing structure and strong σ-donating ability of bph.
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