Pu, Guiqiang; Yang, Zhaofan; Wu, Yali; Wang, Ze; Deng, Yang; Gao, YunJing; Zhang, Zhen; Lu, Xiaoquan published an article about the compound: Tris(2,2′-bipyridine)ruthenium bis(hexafluorophosphate)( cas:60804-74-2,SMILESS:F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F.C1(C2=NC=CC=C2)=NC=CC=C1.C3(C4=NC=CC=C4)=NC=CC=C3.C5(C6=NC=CC=C6)=NC=CC=C5.[Ru+2] ).COA of Formula: C30H24F12N6P2Ru. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:60804-74-2) through the article.
We provide evidence of oxygen-involved electrochemiluminescence (ECL) of metal-free porphyrins and metalloporphyrins first. O2•- and OH•, which are oxygen intermediates, are indispensable for the formation of excited porphyrins, which has been proven by trapping free radical strategies. The wide differences regarding emission location and mechanism between metal-free porphyrins [including meso-tetra(4-methoxyphenyl)porphine (H2TMPP), meso-tetraphenylporphyrin (H2TPP), and meso-tetra(4-carboxyphenyl)porphine (H2TCPP)] and metalloporphyrins (MTPP) depend on whether protons are present in the center of the porphin ring. Besides, the oxygen-involved ECL of porphyrins can be controlled regularly by peripheral substituents with different polarities. Because of the stretched mol. structure and the decrease in electron d. around the protons located at porphin ring, electron-withdrawing groups are more conducive to protons being attacked by O2•-, as well as the enhancement of porphyrins ECL. The ECL efficiency [ΦECL, which is normalized with respect to Ru(bpy)3(PF6)2 (taking ΦECL of Ru(bpy)3(PF6)2 = 1)] is gradually improved from H2TMPP (ΦECL = 0.16), to H2TPP (ΦECL = 2.20), to H2TCPP (ΦECL = 3.83); the ΦECL = 4.21 of Zn(II)TPP is significantly higher than those of other MTPPs [e.g., Co(II)TPP and Cu(II)TPP]. A deeper understanding regarding the improvement of porphyrins ECL efficiency and new application toward porphyrins-related devices can be achieved from this work.
Although many compounds look similar to this compound(60804-74-2)COA of Formula: C30H24F12N6P2Ru, numerous studies have shown that this compound(SMILES:F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F.C1(C2=NC=CC=C2)=NC=CC=C1.C3(C4=NC=CC=C4)=NC=CC=C3.C5(C6=NC=CC=C6)=NC=CC=C5.[Ru+2]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI