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Singh V, Thakur PS, Ganesan V, Sankar M. Zn(II) porphyrin-based polymer facilitated electrochemical synthesis of green hydrogen peroxide. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dar TA, Bulbul AS, Sankar M, Kadish KM. Meso-Tetrapyrenylporphyrins: Synthesis, structural, spectral, electrochemical properties and Förster energy transfer (FRET) studies. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s108842462050008x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Meso-tetrapyrenylporphyrin and its metal (Co[Formula: see text], Cu[Formula: see text], Ni[Formula: see text] and Zn[Formula: see text]) complexes were synthesized, characterized and studied for their spectral, electrochemical and energy transfer properties. DFT optimization was carried out to gain an insight into the interactions between the porphyrin [Formula: see text]-system and the pyrenyl substituents. The pyrenyl substituents and the porphyrin core remain essentially orthogonal to each other in both the free base and the metallated porphyrins. Redox potentials of the pyrenylporphyrins are marginally shifted as compared to their corresponding phenyl derivatives. Förster resonance energy transfer (FRET) studies were carried out in toluene for free-base pyrenylporphyrin and its Zn(II) complex. Since pyrene is a good donor, an efficient energy transfer from pyrene (D) to the porphyrin core (A) on the order of 80–85% was observed for these two compounds. It was observed that energy transfer occurs mainly via ”through-bond” (TB) interaction rather than ”through-space” (TS) interaction.
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Affiliation(s)
- Tawseef Ahmad Dar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee – 247667, India
| | - Amir Sohel Bulbul
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee – 247667, India
| | - Muniappan Sankar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee – 247667, India
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, TX, 77204-5003, USA
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Abstract
The synthesis of a triad consisting of porphyrin and hexabenzocoronene (HBC) units, which are connected via a central hexaarylbenzene (HAB) core, is presented. The ortho substitution pattern at the core results in a close proximity of the two chromophores, which influences their properties such as the intensity ratio of UV-vis absorption bands.
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Affiliation(s)
- Max M. Martin
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Norbert Jux
- Department Chemie und Pharmazie & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
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Ji L, Devaramani S, Mao X, Zhang Z, Qin D, Shan D, Zhang S, Lu X. Behaviors of the Interfacial Consecutive Multistep Electron Transfer Controlled by Varied Transition Metal Ions in Porphyrin Cores. J Phys Chem B 2017; 121:9045-9051. [PMID: 28850234 DOI: 10.1021/acs.jpcb.7b07009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Almost all life activities involve the process of multistep electron transfer (ET) which occurs on biomembrane. Metalloporphyrins (MTPPs) are a class of molecules which are closely related to life course. Here, the n-step (n = 1, 2) ET behaviors controlled by different metal ions in porphyrin cores were investigated by thin-layer cyclic voltammetry (TLCV). The bimolecular ET was reacted between the MTPP (M = Fe, Zn, Co, Cu, Ni) and Fe(CN)64- in nitrobenzene and aqueous phase, respectively, and the interface between nitrobenzene and aqueous phase was considered as a bionic membrane. The thin-layer theory, which has been revised, was used to calculate the kinetic constants for each step electron transfer reactions. It was shown that the kinetic data were affected dramatically by the different coordinated ions in porphyrin complexes.
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Affiliation(s)
- Lingxia Ji
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University , Tianjin, 300072, P. R. China.,Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University , Lanzhou, 730070, P. R. China
| | - Samrat Devaramani
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University , Lanzhou, 730070, P. R. China
| | - Xiang Mao
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University , Tianjin, 300072, P. R. China
| | - Zhen Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University , Tianjin, 300072, P. R. China
| | - Dongdong Qin
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University , Lanzhou, 730070, P. R. China
| | - Duoliang Shan
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University , Lanzhou, 730070, P. R. China
| | - Shouting Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University , Tianjin, 300072, P. R. China.,Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University , Lanzhou, 730070, P. R. China
| | - Xiaoquan Lu
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University , Tianjin, 300072, P. R. China.,Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University , Lanzhou, 730070, P. R. China
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Zheng Y, Zhu S, Jiang L, Wu F, Huang C, Li Z, Wong KL, Xu Z, Wang K. Synthesis, singlet oxygen generation, photocytotoxicity and subcellular localization of azobisporphyrins as potentially photodynamic therapeutic agents in vitro cell study. J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s1088424617500201] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Three azobisporphyrins (Por1, Por2 and Por3) were synthesized by coupling two molecules of (4-nitrophenyl/pyridyl) porphyrins in the presence of KOH/butanol. The structures of porphyrins were confirmed by UV, IR, NMR and mass spectra and elemental analysis. With tetraphenylporphyrin (H2TPP) as a control, the singlet oxygen (1O[Formula: see text] generation of porphyrins was evaluated through 1,3-diphenylisobenzofuran (DPBF) method. The order of ability to generate 1O2 for three azobisporphyrins was Por 1 [Formula: see text]Por 2 > Por 3[Formula: see text] H2TPP. The photocytotoxicity and sub-cellular localization of azobisporphyrins over Hela cells were studied through MTT analysis and confocal laser scanning microscope, respectively. The results indicated Por 1 and Por 2 displayed the low dark-cytotoxicity, while Por 3 induced a concentration-dependent cytotoxicity to Hela cells with the concentration of porphyrins ranging from 1 to 100 [Formula: see text] M. With the light dose at 4 J/cm2, Por 3 killed more than 60% Hela cells at 2 [Formula: see text] M, indicating a high photocytoxicity. As seen from the laser scanning confocal microscopy images, Por 3 was mainly localized in cell membrane, while Por 1 and Por 2 do not displayed significant fluorescent emission in Hela cells. These results suggest the synthesized cationic azobisporphyrin could be used as a potential therapeutic agent for photodynamic therapy of cancers.
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Affiliation(s)
- Yunman Zheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P.R. China
| | - Sizhe Zhu
- Hubei Key Lab of Novel Reactor & Green Chemical Technology, Wuhan Institute of Technology, Wuhan, Hubei Province, P.R. China
| | - Lijun Jiang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Fengshou Wu
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, P.R. China
| | - Chi Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P.R. China
| | - Zaoying Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P.R. China
| | - Ka-Leung Wong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Zebin Xu
- Hubei Key Lab of Novel Reactor & Green Chemical Technology, Wuhan Institute of Technology, Wuhan, Hubei Province, P.R. China
| | - Kai Wang
- Hubei Key Lab of Novel Reactor & Green Chemical Technology, Wuhan Institute of Technology, Wuhan, Hubei Province, P.R. China
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, P.R. China
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