80528-89-8Relevant articles and documents
Synthesis, Structural and Optical Properties of Tetrabenzoporphyrin Complexes Bearing Four or Eight Peripheral Phenyl Groups
Furuyama, Taniyuki,Okujima, Tetsuo,Muramatsu, Kota,Takahashi, Yuichi,Mikami, Akihiro,Fukumura, Tomoteru,Mori, Shigeki,Nakae, Takahiro,Takase, Masayoshi,Uno, Hidemitsu,Kobayashi, Nagao
, p. 3224 - 3235 (2019/05/29)
A series of free-base and phosphorus(V) complexes of tetrabenzoporphyrin (TBP) and some phosphorus(V) porphyrins containing four or eight phenyl groups on the periphery have been synthesized and characterized by X-ray crystallography, electronic absorption, and magnetic circular dichroism (MCD) spectroscopy, together with quantum chemical calculations. All phosphorus TBP and meso-tetraphenyl porphyrin complexes adapted ruffled conformations due to the small P(V) ion, although the Zn(II)TBPs containing eight phenyl (Φ) groups at the so-called β and α positions showed planar and saddled structures in the solid state, due to, respectively, marginal or severe steric hindrance between the neighboring Φ groups. All P(V)TBPs showed the Soret and Q bands beyond 450 and 700 nm, respectively, which are some of the longest wavelengths exhibited by metallated TBPs reported to date. Of the eight Φ group-substituted P(V)TBPs, those substituted at α positions always showed absorption bands at longer wavelengths than those at β positions, which was reproduced by calculated absorption spectra. The Soret band positions of meso-tetraphenylated P(V) species without fused benzo-groups (ca. 430–440 nm) were also some of the longest among metalloporphyrins of this type.
Synthesis, electrochemical and spectroelectrochemical characterization of iron(III) tetraarylporphyrins containing four β, β ′-butano and β, β ′-benzo fused rings
Xu, Weijie,Fang, Yuanyuan,Ou, Zhongping,Chen, Mingyuan,Kadish, Karl M.
, p. 521 - 534 (2018/05/14)
Six iron(III) tetraarylporphyrins containing four b,b?-butano or b,b?-benzo fused rings were synthesized and characterized by electrochemistry and spectroelectrochemistry in nonaqueous media. The examined compounds are represented as butano(TpYPP)FeCl and
H2O2-activated triplet-triplet annihilation upconversion via modulation of the fluorescence quantum yields of the triplet acceptor and the triplet-triplet-energy-transfer efficiency
Tao, Renjie,Zhao, Jianzhang,Zhong, Fangfang,Zhang, Caishun,Yang, Wenbo,Xu, Kejing
, p. 12403 - 12406 (2015/08/03)
Oxidation-activatable triplet-triplet annihilation (TTA) upconversion was achieved with 9,10-bis(diphenylphosphino)-anthracene (BDPPA, nonfluorescent) as an activatable triplet acceptor/emitter, which can be oxidized to BDPPA-O (highly fluorescent) by H2O2 under mild conditions, and thus TTA upconversion was switched on by H2O2.
