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A cobalt(Ⅱ)porphyrin with a tethered imidazole for efficient oxygen reduction and evolution electrocatalysis 被引量:1
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作者 Xialiang Li Ping Li +10 位作者 Jindou Yang Lisi Xie Ni Wang Haitao Lei Chaochao Zhang Wei Zhang Yong-Min Lee Weiqiang Zhang Shunichi Fukuzumi Wonwoo Nam Rui Cao 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第1期617-621,I0015,共6页
Electrocatalytic oxygen reduction and evolution reactions are involved in new energy conversion and storage technologies,such as various fuel cells and metal-air batteries and also water splitting devices[1,2].However... Electrocatalytic oxygen reduction and evolution reactions are involved in new energy conversion and storage technologies,such as various fuel cells and metal-air batteries and also water splitting devices[1,2].However,both reactions are very slow in kinetics,and thus catalysts are required[3,4]. 展开更多
关键词 Molecular electrocatalysis Cobalt porphyrin Axial ligand effect Oxygen reduction reaction Oxygen evolution reaction
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Syntheses and Properties of Lanthanide Hydroxy-meso-tetra(p-chlorophenyl)porphyrin Complexes
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作者 YUMiao YULian-xiang JIANWen-ping YANGWen-sheng LIUGuo-fa 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2004年第6期807-809,共3页
关键词 HEMOGLOBIN MYOGLOBIN CYTOCHROME porphyrin METALLOporphyrin Lanthanide porphyrin complex
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Preoperative Prediction of Whether Intraoperative Fluorescence of Protoporphyrin IX Can Be Achieved by 5-Aminolevulinic Acid Administration
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作者 Satoshi Utsuki Hidehiro Oka +5 位作者 Chihiro Kijima Madoka Inukai Kiyotaka Fujii Masahiro Ishizuka Kiwamu Takahashi Katsushi Inoue 《International Journal of Clinical Medicine》 2012年第2期132-135,共4页
Protoporphyrin IX (PPIX) fluorescence-guided brain tumor resection, using 5-aminolevulinic acid (5-ALA), is among the most valuable tools for determining tumor removal area. However, PPIX fluorescence is not necessari... Protoporphyrin IX (PPIX) fluorescence-guided brain tumor resection, using 5-aminolevulinic acid (5-ALA), is among the most valuable tools for determining tumor removal area. However, PPIX fluorescence is not necessarily achieved during an operation visually even when 5-ALA is used, and we do not know until tumor exposure to the excitation light of the ultraviolet region whether PPIX fluorescence has been achieved. When a particular biopsy and frozen section diagnosis is made, the reason for lack of PPIX fluorescence in the tissue cannot be judged. We do not know whether the tumor fails to fluoresce or no fluorescence is seen because it is not the main body of the tumor. We investigated whether the presence or absence of tumor fluorescence could be predicted by examining urinary porphyrin before surgery, at the time of intraoperative fluorescence diagnosis using 5-ALA. The urine of brain tumor patients 2 hours after 5-ALA administration was irradiated with a 405 ± 1 nm laser light. The patients were divided into a fluorescent urine group and negative fluorescent urine group. Red fluorescence was observed in response to the 405 ± 1 nm laser beam for all tumors in the fluorescent urine group. Clear red fluorescence was not observed even with 405 ± 1 nm laser beam irradiation in any tumors in the negative fluorescent urine group. Preoperative prediction of the intraoperative fluorescence of PPIX can be achieved by observation of urine 2 hours after 5-ALA administration with exposure to a 405 ± 1 nm laser light. 展开更多
关键词 5-Aminolevulinic Acid INTRAOPERATIVE FLUORESCENCE Coproporphyrin PROTOporphyrin IX URINARY porphyrin
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几种水溶性Porphyrin在电化学处理的银表面上的表面增强拉曼光谱(英文) 被引量:1
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作者 瞿金蓉 朱传方 +1 位作者 王贤明 Fredericks P M 《华中师范大学学报(自然科学版)》 CAS CSCD 北大核心 2000年第1期70-73,共4页
利用波长为632.8nm激光激发的拉曼光谱仪,测定了三种水溶性porphyrin在电化学粗糙银表面上的表面增强拉曼光谱(SERS).这些光谱非常相似,但也有一些重要的差别.实验还表明:当Sn(Ⅳ)TMPyP(4)吸附在Ag表面上时,Sn-N键仍稳定... 利用波长为632.8nm激光激发的拉曼光谱仪,测定了三种水溶性porphyrin在电化学粗糙银表面上的表面增强拉曼光谱(SERS).这些光谱非常相似,但也有一些重要的差别.实验还表明:当Sn(Ⅳ)TMPyP(4)吸附在Ag表面上时,Sn-N键仍稳定存在,而且吸附分子的表面浓度不同,其在表面的取向也不同. 展开更多
关键词 表面增强拉曼散射 电化学处理 porphyrin 银表面
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Synthesis of a New Porphyrin-fluorescein Hybrid and its Supramolecular Self-assembly with Amino-porphyrinatomanganese(Ⅲ) by Hydrogen-bonding 被引量:3
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作者 JiaZhengLU JinWangHUANG LiFenFAN JieLIU KeZhuanXU XianLiCHEN LiangNianJI 《Chinese Chemical Letters》 SCIE CAS CSCD 2005年第3期303-306,共4页
A new porphyrin-fluorescein hybrid 2 (Fl-PPTPP) has been synthesized and characterized by UV-Vis, IR, H-NMR, ESI-MS and elemental analysis. The supramolecular 1 self-assembly of Fl-PPTPP with amino-porphyrinatomangane... A new porphyrin-fluorescein hybrid 2 (Fl-PPTPP) has been synthesized and characterized by UV-Vis, IR, H-NMR, ESI-MS and elemental analysis. The supramolecular 1 self-assembly of Fl-PPTPP with amino-porphyrinatomanganese [Mn (p-APTPP)Cl] by hydrogen-bonding was studied using fluorescence spectroscopic titration and ESI-MS. 展开更多
关键词 porphyrin FLUORESCEIN amino-porphyrinatomanganese SUPRAMOLECULAR SELFASSEMBLY hydrogen-bonding.
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Synthesis and Langmuir-Blodgett Film Analysis of Atropisomers of “Picket Fence” Porphyrin 被引量:2
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作者 WANG Chao-wei REN Yu-jie +1 位作者 CAO Zhen-feng CHEN Qi-bin 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2010年第5期761-767,共7页
Four "picket fence" porphyrin atropisomers were respectively synthesized from the four corresponding atropisomers of meso-tetra(o-aminophenyl)porphyrin that had been chromatographed on a column eluted with petrole... Four "picket fence" porphyrin atropisomers were respectively synthesized from the four corresponding atropisomers of meso-tetra(o-aminophenyl)porphyrin that had been chromatographed on a column eluted with petroleum ether and ethyl acetate. Results show that each atropisomer could be successfully synthesized by controlling the acylation temperature at 0 ℃. They were characterized by 1H NMR, HRMS, IR, UV-Vis and Langmuir-Blodgett(LB) film analyses. Although the results of HRMS, IR, UV-Vis analyses indicate there is no remarkable difference among the atropisomers, the results of the 1H NMR and the mean molecular areas obtained by LB film technique imply that the atropisomers are significantly discrepant. The former shows that the chemical shifts of the methyl and amide protons of each atropisomer are distinct, while the later presents that the different atropisomer molecules can occupy the different surface areas at the air/water interface. 展开更多
关键词 "Picket fence" porphyrin ATROPISOMER Langmuir-Blodgett(LB) film meso-Tetra(o-pivalamidophenyl)porphyrin
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Enhanced electrocatalytic activity of iron amino porphyrins using a flow cell for reduction of CO_(2) to CO 被引量:2
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作者 Maryam Abdinejad Caitlin Dao +1 位作者 Xiao-An Zhang Heinz Bernhard Kraatz 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2021年第7期162-169,共8页
The flexibility of molecular catalysts is highly coveted for the electrochemical reduction of carbon dioxide(CO_(2)) to carbon monoxide(CO) in both homogeneous and heterogeneous systems.While the electrocatalytic acti... The flexibility of molecular catalysts is highly coveted for the electrochemical reduction of carbon dioxide(CO_(2)) to carbon monoxide(CO) in both homogeneous and heterogeneous systems.While the electrocatalytic activity of molecular catalysts has been widely studied in H-cells;their less studied capabilities in more efficient flow cell reactors have the potential to rival that of heterogeneous catalysts.In this work,a comparative study of amino functionalized iron-tetraphenylporphyrins(amino-Fe-TPPs) immobilized onto carbonaceous materials in both H-cells and flow cells was conducted to selectively reduce CO_(2) to CO.In a flow cell set up operating in alkaline media,the resulting hybrid catalyst exhibits 87% faradaic efficiency(FE) with extraordinary current density(j) of 119 mA/cm^(2) and turnover frequency(TOF) of 14 s^(-1) at-1.0 V vs.RHE.This remarkable catalytic activity was achieved through thoughtful combination of molecular and flow cell design that provides an effective strategy for future immobilized heterogeneous approaches toward CO_(2) reduction reactions(CO_(2) RRs). 展开更多
关键词 Carbon dioxide reduction Carbon dioxide capture Heterogeneous electrocatalysis Iron porphyrin Amino porphyrins CO_(2)RR and flow cell
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Synthesis and Photocytotoxicity of Mono-functionalised Porphyrin with Valine Moiety 被引量:1
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作者 WeiMinSHI JianWU +1 位作者 YiFengWU KaiXianQIAN 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第12期1427-1429,共3页
A mono-funtionalised tetraphenylporphyrin (TPP) bearing valine moiety at the phenylring was synthesized for photocytotoxicity examination in four steps, starting from regiospecificmono-nitration of TPP at the phenyl r... A mono-funtionalised tetraphenylporphyrin (TPP) bearing valine moiety at the phenylring was synthesized for photocytotoxicity examination in four steps, starting from regiospecificmono-nitration of TPP at the phenyl ring. The in vitro photocytotoxicitic effect against SPC-Aladenocarcinona cell line was tested. 展开更多
关键词 Mono-functionalised porphyrin tetraphenylporphyrin photocytotoxicity.
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Synthesis of Substituted u-Oxo-bis[tetra-phenyl porphyrinatoiron] Compounds from Free Base Porphyrins by a One-pot Method 被引量:2
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作者 佘远斌 冯连顺 +1 位作者 王爱欣 李修艳 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第3期369-372,共4页
A novel method for synthesis of substituted u-oxo-bis[tetraphenyl porphyrinatoiron] compotmds ([TRPPFe]20) based on the reaction among free base porphyrins (TRPPH2), FeSO4·7H2O and H2O in one pot was proposed... A novel method for synthesis of substituted u-oxo-bis[tetraphenyl porphyrinatoiron] compotmds ([TRPPFe]20) based on the reaction among free base porphyrins (TRPPH2), FeSO4·7H2O and H2O in one pot was proposed and investigated. Four kinds of [TRPPFe]2O were synthesized by this novel synthetic method, and their structures were characterized by elemental analysis, infrared spectra and UV-vis spectroscopy. The reaction conditions, including the effect of different iron salts on the formation of [TRPPFe]2O, the reaction time between FeSO4-7H2O and TRPPH2, the molar ratio of FeSO4-7H2O/TRPPH2 as well as the volume ratio of H2O/DMF, were investigated. The [TRPPFe]2O yield of 93% 98% could be obtained under the following optimal conditions: the reaction time of FeSOn-7H2O with TRPPH2 was about 10 h, the molar ratio of FeSOn-7H2O/TRPPH2 about 5 : 1, and the volume ratio of H2O/DMF exceeded 2 : 1. Further research indicated that only TRPPFeCI were formed once FeSOn-7H2O was replaced by FeCl2-4H2O, the reason of which might be that halogen ions in iron salts interfered the formation of [TRPPFe]2O, suggesting that halogen ions should be avoided in this novel synthetic method. 展开更多
关键词 substituted u-oxo-bis[tetraphenylporphyrinatoiron] compounds one-pot method free base porphyrins
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Investigation of Light-harvest Material:Synthesis and Characterization of Nanometer Porphyrin Trimer 被引量:1
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作者 SHIYing-yan WANGXing-qiao +4 位作者 LIXiang-qing ZHENGWen-qi DINGHong ZHUGuang-shan LIUGuo-fa 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2004年第3期262-265,共4页
ω -Bromopropylporphyrin ether synthesized from the raction of 1,3-dibromopropane as the bridge-linked reagent and 5-(4-hydroxyphenyl)-10,15,20-triphenylporphyrin (H_2MHTPP) as the matrix reacts with 5,15-di(4- hydrox... ω -Bromopropylporphyrin ether synthesized from the raction of 1,3-dibromopropane as the bridge-linked reagent and 5-(4-hydroxyphenyl)-10,15,20-triphenylporphyrin (H_2MHTPP) as the matrix reacts with 5,15-di(4- hydroxyphenyl)-10,20-diphenyl porphyrin( trans -H_2DHDPP) to give the title nanometer porphyrin trimer. The characterization was carried out by means of elemental analyses,UV-Vis,IR, 1H NMR and XRD. 展开更多
关键词 Nanometer porphyrin trimer ω -Bromopropylporphyrin ether Bridge-linking reagent
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Synthesis and Characterization of Liquid Crystal of meso-Tetra(4-n-octanoyloxyphenyl)porphyrin 被引量:1
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作者 LIU Wei SHI Tong shun 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1998年第2期102-104,共3页
SynthesisandCharacterizationofLiquidCrystalofmeso┐Tetra(4┐n┐octanoyloxyphenyl)porphyrin*LIUWeiandSHITong-shu... SynthesisandCharacterizationofLiquidCrystalofmeso┐Tetra(4┐n┐octanoyloxyphenyl)porphyrin*LIUWeiandSHITong-shun**(DepartmentofC... 展开更多
关键词 Liquid crystal meso-Tetra(4-n-octanoyloxyphenyl)porphyrin METALLOporphyrin
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Meso-substituted cationic 3-and 4-N-Pyridylporphyrins and their Zn(II)derivatives for antibacterial photodynamic therapy 被引量:2
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作者 Aram G.Gyulkhandanyan Marina H.Paronyan +8 位作者 Anna G.Gyulkhandanyan Karapet R.Ghazaryan Marina V.Parkhats Boris M.Dzhagarov Maria V.Korchenova Ekaterina N.Lazareva Elena S.Tuchina Grigor V.Gyulkhandanyan Valery V.Tuchin 《Journal of Innovative Optical Health Sciences》 SCIE EI CAS 2022年第1期1-16,共16页
Photodynamic inactivation of microorganisms known as antibacterial photodynamic therapy(APDT)is one of the most promising and innovative approaches for the destruction of pathogenic microorganisms.Among the photosensi... Photodynamic inactivation of microorganisms known as antibacterial photodynamic therapy(APDT)is one of the most promising and innovative approaches for the destruction of pathogenic microorganisms.Among the photosensitizers(PSs),compounds based on cationic porphyrins/metalloporphyrins are most successfully used to inactivate microorganisms.Series of meso-substituted cationic pyridylporphyrins and metalloporphyrins with various peripheral groups in the third and fourth positions of the pyrrole ring have been synthesized in Armenia.The aim of this work was to determine and test the most e®ective cationic porphyrins and metalloporphyrins with high photoactivity against Gram negative and Gram positive microorganisms.It was shown that the synthesized cationic pyridylporphyrins/metalloporphyrins exhibit a high degree of phototoxicity towards both types of bacteria,including the methicillinresistant S.aureus strain.Zinc complexes of porphyrins are more phototoxic than metal-free porphyrin analogs.The e®ectiveness of these Zn–metalloporphyrins on bacteria is consistent with the level of singlet oxygen generation.It was found that the high antibacterial activity of the studied cationic porphyrins/metalloporphyrins depends on four factors:the presence in the porphyrin macrocycle of a positive charge(+4),a central metal atom(Zn2þÞand hydrophobic peripheral functional groups as well as high values of quantum yields of singlet oxygen.The results indicate that meso-substituted cationic pyridylporphyrins/metalloporphyrins cannd wider application in photoinactivation of bacteria than anionic or neutral PSs usually used in APDT. 展开更多
关键词 Antibacterial photodynamic therapy cationic porphyrins/metalloporphyrins PHOTOTOXICITY Zn-metalloporphyrins singlet oxygen quantum yield Gram negative and Gram positive bacteria S.aureus MRSA E.coli Salmonella typhimurium.
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STEROID-BISPORPHYRIN. A NOVEL PORPHYRIN DIMER AS ENZYME MODEL 被引量:1
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作者 Shu Hua CHEN Shang Jun LI 《Chinese Chemical Letters》 SCIE CAS CSCD 1992年第10期801-804,共4页
In the present communcation a novel steroid-bisporphyrin model compound has been synthesized. The configuration of which is also presented.
关键词 A NOVEL porphyrin DIMER AS ENZYME MODEL STEROID-BISporphyrin AS ppm Chen
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Synthesis of Novel Covalent-linked Linear Porphyrin-Thiophene Copolymers 被引量:1
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作者 CHENZhang-ping DUANMUChuan-song XIAOLi 《Wuhan University Journal of Natural Sciences》 CAS 2004年第4期503-508,共6页
Linear porphyrin-thiophene copolymers were synthesized by linking 5, 15-positions of porphyrin with tetrathiophene or bithiophene moieties for preparing conducting polymer. 2,8,12,18-tetraethyl-3,7,13,17-tetramethyl-5... Linear porphyrin-thiophene copolymers were synthesized by linking 5, 15-positions of porphyrin with tetrathiophene or bithiophene moieties for preparing conducting polymer. 2,8,12,18-tetraethyl-3,7,13,17-tetramethyl-5, 15-dithienylporphyrin4a (45.1%), 5, 15-di-bithienyl- 2,8,12,18-tetraethyl-3, 7, 13, 17-tetramethylporphyrin4b (61. 2%) and their metal complexes were also reported in high yields (>90%) as the monomers. 5, 15-di-bithienylporphyrin and its metal complexes could be polymerized by oxidation using FeCl3 as oxidant. However, 5,15-dithienylporphyrin and its metal complexes can not be polymerized by same reaction. Their polymers were synthesized by electrochemical oxidation on the gold-plate electrode. The structures of copolymers were identified by elemental analysis and IR spectra. And the conductivity of poly 5,15-di-bithienylporphyrin was measured to reach over 1.0× 10?6S/cm. Key words organic conductor - thienylporphyrin - porphyrin-thiophene copolymer - electropolymerization CLC number O 62 Foundation item: Supported by the National Natural Science Foundation of China (29872033, 20272046)Biography: CHEN Zhang-ping (1946-), male, Professor, research direction: porphyrin chemistry. 展开更多
关键词 organic conductor thienylporphyrin porphyrin-thiophene copolymer ELECTROPOLYMERIZATION
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Synthesis of Novel Polymer-Bonded Water-Soluble Metal Porphyrins
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《Wuhan University Journal of Natural Sciences》 CAS 1999年第3期375-376,共2页
The reaction of 5, 10, 15, 20-tetra-(4-pyridyl) porphyrin 1 with triruthenium dodecacarbonyl [Ru3(CO)12], zinc(II) acetate, copper(II) acetate, cobalt(II) acetate afforded complexes 2a?2d respectively. Treatment of 2a... The reaction of 5, 10, 15, 20-tetra-(4-pyridyl) porphyrin 1 with triruthenium dodecacarbonyl [Ru3(CO)12], zinc(II) acetate, copper(II) acetate, cobalt(II) acetate afforded complexes 2a?2d respectively. Treatment of 2a?2d with Merrifield’s peptide resin obtained 3a?3d. The compounds 3a?3d reacted with methyl iodide respectively gave 4a?4d. New complexes 4a?4d have been identified by IR, UV-visible spectra, and AES. 展开更多
关键词 polymer bonded metal porphyrin water soluble porphyrin synthesis
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Synthesis and Electrochemical Study of Water-Soluble Lanthanide Porphyrins
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作者 庄乾坤 高小霞 《Journal of Rare Earths》 SCIE EI CAS CSCD 1998年第4期12-15,共4页
The water soluble tetra p sulfonatophenylporphyrinatolanthanide, [Ln·TPPS·OH ·2imidazole] ·3H 2O(Ln=Tb~Yb), were synthesized and characterized. Their stability and complex constants were... The water soluble tetra p sulfonatophenylporphyrinatolanthanide, [Ln·TPPS·OH ·2imidazole] ·3H 2O(Ln=Tb~Yb), were synthesized and characterized. Their stability and complex constants were also studied and determined. The structural formula of the lanthanide porphyrins was proposed too. The lanthanide atom is sitting above the porphyrin plane. For the lanthanide porphyrin complexes, the complex becomes more stable and the reduction potential has a slight shift to more positive values as the atomic number increases from Tb to Yb. The mechanism of electrode processes for these lanthanidee porphyrin complexes were investigated in details. 展开更多
关键词 Rare Earths porphyrin Lanthanide porphyrin Electrode reaction mechanism
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Fluorescence and Thermostability of Nanometer Porphyrin Trimer
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作者 SHI Ying-yan FA Huan-bao +3 位作者 ZHENG Wen-qi LI Di SHAN Ning WANG Xing-qiao 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2006年第1期14-16,共3页
A nanometer porphyrin trimer was firstly synthesized with 1 ,3-dibromopropane as a bridge-linked agent and the fluorescence property and thermostability were studied. The results show that the fluorescence property an... A nanometer porphyrin trimer was firstly synthesized with 1 ,3-dibromopropane as a bridge-linked agent and the fluorescence property and thermostability were studied. The results show that the fluorescence property and thermostability of the trimer are different from those of monoporphyrin. The effects of the molecule structure on the optical property and the thermostability were also studied in detail. 展开更多
关键词 Monoporphyrin porphyrin trimer FLUORESCENCE Thermostability
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Synthesis of 5,10,15,20-Tetra(N-methyl-6-quinolyl)-21,23-dithia- porphyrin Chloride as Cationic Core-modified Porphyrin
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作者 TaoLU LaurenceH.HURLEY 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第11期1261-1264,共4页
First cationic 6-quinolyl substituted dithiaporphyrin was synthesized using Skraup quinoline methodology from thiaporphyrin bearing 4-acetamidophenyl prepared by condensation reaction of aromatic aldehyde with pyrrole.
关键词 porphyrin thiaporphyrin telomerase inhibitor dilithiophen.
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Influence of the metal sites of M-N-C(M=Co, Fe, Mn) catalysts derived from metalloporphyrins in ethylbenzene oxidation 被引量:9
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作者 付玲玲 鲁怡娟 +1 位作者 刘志刚 朱润良 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2016年第3期398-404,共7页
Transition metal catalysts M-N-C(M = Co,Fe,Mn) were synthesized by a template-free method by heating meso-tetraphenyl porphyrins(i.e.CoTPP,FeTPPCl,MnTPPCl) precursors.The catalysts were characterized by N2 adsorpt... Transition metal catalysts M-N-C(M = Co,Fe,Mn) were synthesized by a template-free method by heating meso-tetraphenyl porphyrins(i.e.CoTPP,FeTPPCl,MnTPPCl) precursors.The catalysts were characterized by N2 adsorption-desorption,thermogravimetry,high-resolution transmission electron microscopy,and Raman and X-ray photoelectron spectroscopy.The selective oxidation of ethylbenzene with molecular oxygen under a solvent-free condition was carried out to explore the catalytic performance of the M-N-Cs,which exhibited different catalytic performance.That was ascribed to the difference in M(Co,Fe,Mn) and different graphitization degree forming during the heating process,in which M(Co,Fe,Mn) might have different catalytic activity on the formation of the M-N-C catalyst.All the M-N-C composites had remarkable recyclability in the selective oxidation of ethylbenzene. 展开更多
关键词 M(cobalt iron manganese)-N-C Transition metal Nitrogen-doped carbon porphyrin Ethylbenzene oxidation
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Synthesis of Novel Diporphyrins
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作者 Li Zao-ying Liang Jiang-lin +1 位作者 Li Cong Xu Wei 《Wuhan University Journal of Natural Sciences》 CAS 1999年第2期130-131,共2页
The novel diporphyrin ligands in which the two porphyrin ring units attached via a rigid aromatic linker were prepared. Their structures have been identified by IR, UV visible, 1 H NMR spectra and elemental ana... The novel diporphyrin ligands in which the two porphyrin ring units attached via a rigid aromatic linker were prepared. Their structures have been identified by IR, UV visible, 1 H NMR spectra and elemental analysis. 展开更多
关键词 porphyrin diporphyrin SYNTHESIS
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