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Bian Y, Qu X, Chan KS. Base-Promoted C–O Bond Cleavage of Primary Alcohols by Iridium(III) Porphyrin Chloride. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yongjun Bian
- College of Chemistry and Chemical Engineering, Jinzhong University, Yuci 030619, People’s Republic of China
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Xingyu Qu
- College of Chemistry and Chemical Engineering, Jinzhong University, Yuci 030619, People’s Republic of China
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210046, People’s Republic of China
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2
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Tyulyaeva EY. Modern Approaches in the Synthesis of Noble Metal Porphyrins for Their Practical Application (Review). RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023619140110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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3
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Chen C, Chan KS. Alkyl Carbon–Oxygen Bond Cleavage of Aryl Alkyl Ethers by Iridium–Porphyrin and Rhodium–Porphyrin Complexes in Alkaline Media. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00386] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chen Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
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Wong KL, Chen C, Chan KS. Base-Promoted Vinyl Carbon–Bromine Bond Cleavage by Group 9 Metalloporphyrin Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00228] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ka Lai Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin,
New Territories, Hong Kong, People’s Republic of China
| | - Chen Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin,
New Territories, Hong Kong, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin,
New Territories, Hong Kong, People’s Republic of China
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5
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Zuo H, Liu Z, Yang W, Zhou Z, Chan KS. User-friendly aerobic reductive alkylation of iridium(III) porphyrin chloride with potassium hydroxide: scope and mechanism. Dalton Trans 2015; 44:20618-25. [PMID: 26563412 DOI: 10.1039/c5dt03845f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkylation of iridium 5,10,15,20-tetrakistolylporphyrinato carbonyl chloride, Ir(ttp)Cl(CO) (1), with 1°, 2° alkyl halides was achieved to give (ttp)Ir-alkyls in good yields under air and water compatible conditions by utilizing KOH as the cheap reducing agent. The reaction rate followed the order: RCl < RBr < RI (R = alkyl), and suggests an SN2 pathway by [Ir(I)(ttp)](-). Ir(ttp)-adamantyl was obtained under N2 when 1-bromoadamantane was utilized, which could only undergo bromine atom transfer pathway. Mechanistic investigations reveal a substrate dependent pathway of SN2 or halogen atom transfer.
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Affiliation(s)
- Huiping Zuo
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People's Republic of China.
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6
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Tyulyaeva EY, Bichan NG, Mozhzhukhina EG, Lomova TN. Kinetics of the chemical oxidation of (5,10,15,20-tetraphenyl-21H,23H-porphinato)(chloro)(aqua)iridium(III). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2015. [DOI: 10.1134/s0036024416010325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Ding W, Mai S, Song Q. Molecular-oxygen-promoted Cu-catalyzed oxidative direct amidation of nonactivated carboxylic acids with azoles. Beilstein J Org Chem 2015; 11:2158-65. [PMID: 26664637 PMCID: PMC4660991 DOI: 10.3762/bjoc.11.233] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/26/2015] [Indexed: 12/29/2022] Open
Abstract
A copper-catalyzed oxidative direct formation of amides from nonactivated carboxylic acids and azoles with dioxygen as an activating reagent is reported. The azole amides were produced in good to excellent yields with a broad substrate scope. The mechanistic studies reveal that oxygen plays an essential role in the success of the amidation reactions with copper peroxycarboxylate as the key intermediate. Transamidation occurs smoothly between azole amide and a variety of amines.
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Affiliation(s)
- Wen Ding
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao Univeristy, P. R. China
| | - Shaoyu Mai
- College of Materials Science at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian, 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao Univeristy, P. R. China ; Beijing National Laboratory for Molecular Sciences, Beijing, 100190, P. R. China
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8
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Naoda K, Mori H, Osuka A. GoldIII-IridiumIIIHybrid Complexes of Hexaphyrin(1.1.1.1.1.1). Chem Asian J 2013; 8:1395-8. [DOI: 10.1002/asia.201300320] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Indexed: 11/11/2022]
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9
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Bhagan S, Imler GH, Wayland BB. Iridium porphyrins in CD3OD: reduction of Ir(III), CD3-OD bond cleavage, Ir-D acid dissociation and alkene reactions. Inorg Chem 2013; 52:4611-7. [PMID: 23540797 DOI: 10.1021/ic400240b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Methanol solutions of iridium(III) tetra(p-sulfonatophenyl)porphyrin [(TSPP)Ir(III)] form an equilibrium distribution of methanol and methoxide complexes ([(TSPP)Ir(III)(CD3OD)(2-n)(OCD3)n]((3+n)-)). Reaction of [(TSPP)Ir(III) with dihydrogen (D2) in methanol produces an iridium hydride [(TSPP)Ir(III)-D(CD3OD)](4-) in equilibrium with an iridium(I) complex ([(TSPP)Ir(I)(CD3OD)](5-)). The acid dissociation constant of the iridium hydride (Ir-D) in methanol at 298 K is 3.5 × 10(-12). The iridium(I) complex ([(TSPP)Ir(I)(CD3OD)](5-)) catalyzes reaction of [(TSPP)Ir(III)-D(CD3OD)](4-) with CD3-OD to produce an iridium methyl complex [(TSPP)Ir(III)-CD3(CD3OD)](4-) and D2O. Reactions of the iridium hydride with ethene and propene produce iridium alkyl complexes, but the Ir-D complex fails to give observable addition with acetaldehyde and carbon monoxide in methanol. Reaction of the iridium hydride with propene forms both the isopropyl and propyl complexes with free energy changes (ΔG° 298 K) of -1.3 and -0.4 kcal mol(-1) respectively. Equilibrium thermodynamics and reactivity studies are used in discussing relative Ir-D, Ir-OCD3 and Ir-CD2- bond energetics in methanol.
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Affiliation(s)
- Salome Bhagan
- Temple University, Department of Chemistry, 130 Beury Hall, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
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Qian YY, Li BZ, Chan KS. Competitive Aryl–Fluorine and Aryl–Halogen (Halogen = Cl, Br) Bond Cleavage with Iridium Porphyrin Complexes. Organometallics 2013. [DOI: 10.1021/om301196t] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ying Ying Qian
- Department of Chemistry, The Chinese University of Hong Kong,
Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Bao Zhu Li
- Department of Chemistry, The Chinese University of Hong Kong,
Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong,
Shatin, New Territories, Hong Kong, People’s Republic of China
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11
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Bhagan S, Wayland BB. Formation and Reactivity of a Porphyrin Iridium Hydride in Water: Acid Dissociation Constants and Equilibrium Thermodynamics Relevant to Ir–H, Ir–OH, and Ir–CH2– Bond Dissociation Energetics. Inorg Chem 2011; 50:11011-20. [DOI: 10.1021/ic201553k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Salome Bhagan
- Department of Chemistry, Temple University, 130 Beury Hall, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
| | - Bradford B. Wayland
- Department of Chemistry, Temple University, 130 Beury Hall, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
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12
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Cheung CW, Chan KS. Base-Promoted Selective Aryl C–Cl Cleavage by Iridium(III) Porphyrins via a Metalloradical Ipso Addition–Elimination Mechanism. Organometallics 2011. [DOI: 10.1021/om200618m] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chi Wai Cheung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China
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13
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Cheung CW, Chan KS. Base-Promoted Selective Aryl C–Br and C–I Bond Cleavage by Iridium(III) Porphyrin: Reduction of IrIII–OH to IrII for Metalloradical Ipso Substitution of Aryl–Halogen Bonds. Organometallics 2011. [DOI: 10.1021/om200251k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chi Wai Cheung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China
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14
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Li BZ, Fung HS, Song X, Chan KS. Scope and Mechanism of Carbonyl Carbon and α-Carbon Bond Cleavage of Ketones by Iridium(III) Porphyrin Complexes. Organometallics 2011. [DOI: 10.1021/om200026y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bao Zhu Li
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Hong Sang Fung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Xu Song
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
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15
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Cheung CW, Chan KS. Base-Promoted Selective Aryl Carbon−Bromine Bond Cleavage by Iridium(III) Porphyrin for Iridium(III) Porphyrin Aryl Synthesis: A Metalloradical Ipso Addition−Elimination Mechanism. Organometallics 2011. [DOI: 10.1021/om200027q] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chi Wai Cheung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China
| | - Kin Shing Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China
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Koren K, Borisov SM, Saf R, Klimant I. Strongly Phosphorescent Iridium(III)-Porphyrins - New Oxygen Indicators with Tuneable Photophysical Properties and Functionalities. Eur J Inorg Chem 2011; 2011:1531-1534. [PMID: 22485072 PMCID: PMC3318677 DOI: 10.1002/ejic.201100089] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Indexed: 12/03/2022]
Abstract
Synthesis and characterization of four iridium(III)–octaethylporphyrins and a π-extended iridium(III)–benzoporphyrin are presented. Strong room-temperature phosphorescence was observed for all of the complexes with quantum yields of up to 30 %. Axial ligands were introduced to tune the photophysical properties and the solubility. Complexes bearing lipophilic ligands such as pyridine or N-(n-butyl)imidazole were incorporated into polystyrene to obtain optical oxygen sensors. Covalent coupling of the dye is possible by introduction of ligands with binding domains (1-imidazoleacetic acid). This enabled preparation of a water-soluble oxygen probe (by staining bovine serum albumin) and a trace oxygen sensor (by coupling to amino-modified silica gel).
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Affiliation(s)
- Klaus Koren
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology Stremayrgasse 9, 8010 Graz, Austria, /873-32502 E-mail:
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Bhagan S, Sarkar S, Wayland BB. Comparative Studies of Preferential Binding of Group Nine Metalloporphyrins (M = Co, Rh, Ir) with Methoxide/Methanol in Competition with Hydroxide/Water in Aqueous Solution. Inorg Chem 2010; 49:6734-9. [DOI: 10.1021/ic100773y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Salome Bhagan
- Department of Chemistry, Temple University, 130 Beury Hall, 1901N. 13th Street, Philadelphia, Pennsylvania 12122
| | - Sounak Sarkar
- Department of Chemistry, Temple University, 130 Beury Hall, 1901N. 13th Street, Philadelphia, Pennsylvania 12122
| | - Bradford B. Wayland
- Department of Chemistry, Temple University, 130 Beury Hall, 1901N. 13th Street, Philadelphia, Pennsylvania 12122
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