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Naniyil A, Koroth Valappil N, Andrews AP, Gokulnath S. Carbazole-embedded p-benziporphyrinoid: synthesis, structure and a reversible chemodosimeter for mercury(II) ions. Chem Commun (Camb) 2024; 60:6957-6960. [PMID: 38887917 DOI: 10.1039/d4cc02281e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
The first carbazole-embedded p-benziporphyrinoid is synthesized by a [3+1] acid-catalyzed condensation between appropriate coupling partners. The macrocycle 1 exhibited orange emission and showed a large Stokes shift of 5831 cm-1. Intriguingly, it shows a selective affinity towards Hg2+ ions over other metal-ions in a reversible manner. Job's plot confirmed the 1 : 1 stoichiometry with unambiguous confirmation of both 1 and 1-Hg by single crystal X-ray analysis.
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Affiliation(s)
- Athira Naniyil
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram-695551, Maruthamala P.O., Vithura, Kerala, India.
| | - Naveen Koroth Valappil
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram-695551, Maruthamala P.O., Vithura, Kerala, India.
| | - Alex P Andrews
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram-695551, Maruthamala P.O., Vithura, Kerala, India.
| | - Sabapathi Gokulnath
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram-695551, Maruthamala P.O., Vithura, Kerala, India.
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2
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Ali MA, Ravikanth M. Synthesis and Studies of Symmetrical DitelluraCalix[6]phyrin(1.1.1.1.1.1)s. J Org Chem 2024; 89:1389-1396. [PMID: 38238884 DOI: 10.1021/acs.joc.3c01832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Rare examples of ditellura calix[6]phyrin(1.1.1.1.1.1)s containing two telluratripyrrin units connected via two sp3 carbons were synthesized by condensing 16-telluratripyrrane with a cyclic ketone in CH2Cl2 under acid-catalyzed conditions. The X-ray structure obtained for meso-cyclohexyl-substituted calix[6]phyrin revealed that the macrocycle resembles a roof-like shape with two telluratripyrrin units that are perpendicular to each other, whereas the DFT-optimized structure of meso-cyclopentyl-substituted calix[6]phyrin showed a bird-like structure with two telluratripyrrin units that are almost in the same plane.
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Affiliation(s)
- Md Ashif Ali
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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3
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Mariammal M, Sahane N, Tiwari S. Water-soluble anionic N-confused porphyrin for sensitive and selective detection of heavy metal pollutants in aqueous environment. ANAL SCI 2023:10.1007/s44211-023-00341-5. [PMID: 37140885 DOI: 10.1007/s44211-023-00341-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 04/04/2023] [Indexed: 05/05/2023]
Abstract
Efficient detection and quantification of metal ions in real time and in a cost-effective manner is a critical step in combating the increasing danger of heavy metal contamination of our biosphere. The potential of water-soluble anionic derivative of N-confused tetraphenylporphyrin (WS-NCTPP) has been investigated for quantitative detection of heavy metal ions. The results show that the photophysical properties of WS-NCTPP differ significantly in the presence of four metal ions, namely Hg(II), Zn(II), Co(II) and Cu(II). The variation in the spectral behaviour is driven by the formation of 1:1 complexes with all the four cations with varied degree of complexation. The selectivity of the sensing is studied through interference studies, indicating maximum selectivity for Hg(II) cations. Computational studies of the structural features of the metal complexes with WS-NCTPP help in establishing the geometry and binding interactions between the metal ions and the porphyrin nucleus. The results demonstrate the promising potential of the NCTPP probe which should be utilized for detection of heavy metal ions, especially mercury, in the near future.
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Affiliation(s)
- Muthu Mariammal
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Nisha Sahane
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Shraeddha Tiwari
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India.
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Vetter G, Białońska A, Pacholska-Dudziak E. Metalation of Tellurophene: Reactivity of 21,23-Ditelluraporphodimethene toward Palladium(II), Platinum(II), and Rhodium(I). Inorg Chem 2023; 62:3056-3066. [PMID: 36701549 PMCID: PMC9945301 DOI: 10.1021/acs.inorgchem.2c03777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Ditelluraporphodimethene, a nonaromatic porphyrinoid containing two tellurophene rings, reacted with palladium(II), platinum(II), and rhodium(I) following two different paths. Palladium(II) formed bonds to two tellurium donors of the macrocycle, yielding a side-on coordination compound, with a square planar (Te2Cl2) metal ion environment. An alternative reaction path has been observed for ditelluraporphodimethene with platinum(II) or rhodium(I) in high boiling solvents. These conditions led to the profound transformation, that is, one tellurium atom to a metal atom exchange, resulting in the formation of organometallic species containing metallacyclopentadiene rings, that is, 21-platina-23-telluraporphodimethene and 21-rhoda-23-telluraporphodimethene. The substitution reaction proceeded selectively at the tellurophene ring within the conjugated part of the molecule, that is, the tellurophene ring bound to two sp2 meso-carbon atoms. In the case of platinum, the exchange was accompanied by one meso-aryl ring fusion with the formed platinacyclopentadiene ring, and the platinum(II) macrocycle underwent reversible oxidation with chlorine. The products are stable and represent first nonaromatic examples of metalloporphyrinoids, with a metallacyclopentadiene ring incorporated into a porphodimethene skeleton.
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Ali MA, Laxman K, Ravikanth M. Synthesis and Studies of Core-Modified Tellura Dithiasapphyrins. J Org Chem 2022; 87:3202-3211. [PMID: 35148081 DOI: 10.1021/acs.joc.1c02925] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four different aromatic meso-substituted tellurophene-containing dithiasapphyrins were synthesized by acid-catalyzed [3+2] condensation of 16-telluratripyrrane with bithiophene diol in 22-23% yields. The structural, spectral, and electrochemical properties of tellura dithiasapphyrins were studied and compared with those of previously reported aza (pyrrole)- and other heterocycle (furan, thiophene, and selenophene)-containing dithiasapphyrins. Nuclear magnetic resonance studies indicated that the tellurophene ring in tellura dithiasapphyrins is in the normal conformation, facing toward the inner core, but flips in diprotonated derivatives to an inverted conformation, facing away from the macrocyclic core, unlike aza- and other heterocycle-containing dithiasapphyrins in which pyrrole and the corresponding heterocycle ring always prefer to be in inverted conformation in their neutral and protonated forms. The crystal structure obtained for one of the tellura dithiasapphyrins showed that the macrocycle is highly planar and the tellurophene ring is in the normal conformation. The absorption spectra of tellura dithiasapphyrins exhibited slight hypsochromic shifts compared to those of pyrrole- and other heterocycle-containing dithiasapphyrins. The redox studies indicated that the tellura dithiasapphyrins are electron deficient and readily undergoes reductions. Density functional theory and nuclear independent chemical shift studies indicated that the macrocycles are aromatic, and the computational results closely matched the experimental observations.
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Affiliation(s)
- Md Ashif Ali
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Kandala Laxman
- Department of Chemistry, GIS, GITAM Deemed to Be University, Rushikonda, Visakhapatnam 530045, AP, India
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6
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Ali MA, Laxman K, Panda KN, Ravikanth M. Tellurophene-Containing Core-Modified Pentaphyrin(2.1.1.1.1)s. J Org Chem 2022; 87:2480-2488. [PMID: 35080412 DOI: 10.1021/acs.joc.1c02384] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Various core-modified tellurophene-containing pentaphyrin(2.1.1.1.1)s were synthesized via (3 + 2) condensation of 16-telluratripyrrane with different heterodiols under mild acid catalyzed conditions in 5-12% yields. The formation of pentaphyrin (2.1.1.1.1) with a N2O2Te core was not successful due to its inherent instability. The new pentaphyrins were characterized and studied by HR-MS, 1D and 2D NMR, X-ray crystallography for one of the pentaphyrins, absorption and DFT/TD-DFT techniques. The NMR studies indicated their nonaromatic nature. The X-ray structure obtained for pentaphyrin(2.1.1.1.1) with N4Te core revealed that the macrocycle exists in a highly distorted nonplanar structure. The DFT studies showed that the macrocycles are nonaromatic and exists in highly distorted nonplanar geometry. Furthermore, as the core heterocyclic groups at ethene moiety were changed from pyrrole to furan to thiophene to benzene, the macrocycles tended toward more planar structures. The absorption spectra of pentaphyrins showed one strong sharp band in the region of 450-540 nm along with a broad band in the region of 700-800 nm. The pentaphyrin(2.1.1.1.1) with N4Te core upon protonation showed distinct color change in solution and large bathochromic shifts in absorption bands with an absorption in the NIR region.
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Affiliation(s)
- Md Ashif Ali
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Kandala Laxman
- Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.,Department of Chemistry, GIS, GITAM Deemed to Be University, Rushikonda, Visakhapatnam 530045, AP, India
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Abstract
This review highlights the hydroelementation reactions of conjugated and separated diynes, which depending on the process conditions, catalytic system, as well as the type of reagents, leads to the formation of various products: enynes, dienes, allenes, polymers, or cyclic compounds. The presence of two triple bonds in the diyne structure makes these compounds important reagents but selective product formation is often difficult owing to problems associated with maintaining appropriate reaction regio- and stereoselectivity. Herein we review this topic to gain knowledge on the reactivity of diynes and to systematise the range of information relating to their use in hydroelementation reactions. The review is divided according to the addition of the E-H (E = Mg, B, Al, Si, Ge, Sn, N, P, O, S, Se, Te) bond to the triple bond(s) in the diyne, as well as to the type of the reagent used, and the product formed. Not only are the hydroelementation reactions comprehensively discussed, but the synthetic potential of the obtained products is also presented. The majority of published research is included within this review, illustrating the potential as well as limitations of these processes, with the intent to showcase the power of these transformations and the obtained products in synthesis and materials chemistry.
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Affiliation(s)
- Jędrzej Walkowiak
- Adam Mickiewicz University in Poznan, Center for Advanced Technology, Uniwersytetu Poznanskiego 10, 61-614, Poznan.
| | - Jakub Szyling
- Adam Mickiewicz University in Poznan, Center for Advanced Technology, Uniwersytetu Poznanskiego 10, 61-614, Poznan. .,Adam Mickiewicz University in Poznan, Faculty of Chemistry, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
| | - Adrian Franczyk
- Adam Mickiewicz University in Poznan, Center for Advanced Technology, Uniwersytetu Poznanskiego 10, 61-614, Poznan.
| | - Rebecca L Melen
- Cardiff Catalysis Institute, Cardiff University, School of Chemistry, Park Place, Main Building, Cardiff CF10 3AT, Cymru/Wales, UK.
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10H-Pyrazino[2,3-b][1,4]benzotellurazine, a Novel Tellurium-Containing Heterocyclic System. HETEROATOM CHEMISTRY 2020. [DOI: 10.1155/2020/1765950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Condensation of 2,3-dichloropyrazine with 2-aminobenzenetellurole and 2-amino-5-methylbenzenetellurole, generated in situ by reduction of the corresponding ditellurides, resulted in the formation of novel 10H-pyrazino[2,3-b][1,4]benzotellurazine and its 7-methyl derivative. The products were purified via their well-crystallized 5,5-dibromo derivatives. X-ray crystallographic analysis of the title compound indicates that it has a pronounced V-shape and forms hydrogen-bonded dimers. Te, N-containing heterocycles have the potential of offering access to supramolecular assemblies.
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9
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Kumar A, Laxman K, Ravikanth M. Antiaromatic Carbaporphyrinoids: Fluorene as a Fused Motif toward the Synthesis of meso-Fused Heterobenziporphyrins. Org Lett 2019; 21:8726-8730. [PMID: 31618042 DOI: 10.1021/acs.orglett.9b03329] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
meso-Tetraphenyl meta-benziporphyrins are nonaromatic macrocycles which can be changed to antiaromatic by fusing the core benzene ring with one of the adjacent meso-phenyl groups, as demonstrated here by adopting a premodification method. We used a fluorene moiety in place of the m-phenylene ring as a premodified fused aromatic motif to synthesize fused heterobenziporphyrins. Spectral and X-ray data indicated that the macrocycles are antiaromatic, which was supported by DFT, ACID, and NICS calculations. These macrocycles formed organopalladium complexes.
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10
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Alka A, Shetti VS, Ravikanth M. Telluraporphyrinoids: an interesting class of core-modified porphyrinoids. Dalton Trans 2019; 48:4444-4459. [PMID: 30775757 DOI: 10.1039/c9dt00079h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Core-modified porphyrinoids or heteroporphyrinoids are a class of porphyrinoids in which one or more core pyrrole nitrogen atom(s) of the macrocycles are replaced predominantly by group-16 atoms such as O, S, Se, and Te. Telluraporphyrinoids are distinct and interesting from the rest of the chalcogenide atom(s) containing porphyrinoids owing to the larger size of Te and the consequent properties arising from it. The telluraporphyrinoid chemistry is only sporadically investigated and the developments are rather slow compared to the other lighter group-16 atom containing porphyrinoids. This perspective presents a concise overview of the developments that have taken place in the field of telluraporphyrinoid chemistry since its inception and includes various aspects such as the synthesis, structure, reactivity, and properties of tellurium-containing porphyrins and other related porphyrinoids such as vacataporphyrins, carbaporphyrins, calixphyrins, and expanded porphyrins.
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Affiliation(s)
- A Alka
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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11
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Panda SS, Girgis AS, Prakash A, Khanna L, Khanna P, Shalaby EM, Fawzy NG, Jain SC. Protective effects of Aporosa octandra bark extract against D-galactose induced cognitive impairment and oxidative stress in mice. Heliyon 2018; 4:e00951. [PMID: 30761365 PMCID: PMC6286303 DOI: 10.1016/j.heliyon.2018.e00951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/20/2018] [Accepted: 11/15/2018] [Indexed: 11/17/2022] Open
Abstract
Aporosa octandra (Buch.-Ham. ex D.Don) Vickery is a native species of India. Different parts of the plant are used for the medicinal purpose by the tribal peoples of south-eastern part of India. However, the biological properties of A. octandra have not been studied well. The extracts obtained from the bark of A. octandra were evaluated to determine their protective effect on cognitive impairment and oxidative stress in mice induced by D-galactose using the standard protocol. Different dosages of extract AOE-4 (100, 200, and 300 mg/kg, p.o.) were administered to mice, which were previously treated for six weeks with D-galactose (100 mg/kg s.c.). The D-galactose-induced mice showed significantly impaired cognitive behavior, i.e., oxidative defense, compared to the sham group. Six weeks of treatment with A. octandra extract AOE-4 (100, 200 and 300 mg/kg, p.o.) considerably improved the cognitive behavior and oxidative impairment of mice compared to the control alone (D-galactose). For the phytochemical investigation, the bark of A. octandra was successively extracted with dichloromethane and methanol. The chemical constituents of A. octandra were isolated by multiple column chromatography and characterized by different spectral analyses. (R)-Coclaurine (AO-5), an alkaloid, was isolated along with two other compounds from the AOE-4 extract; three more compounds were also isolated from the AOE-1 extract of the bark of A. octandra. All the compounds were isolated for the first time from the bark of A. octandra, and their structures were established by detailed spectral studies. The structure of compound AO-5 was also investigated and confirmed by X-ray diffraction and DFT studies. This study highlights the protective effect of A. octandra bark extract against D-galactose-induced biochemically dysfunction in mice. (R)-Coclaurine (AO-5) was isolated as one of the major components of A. octandra bark from AOE-4 extract; this compound could be further evaluated for the development of new potential drug candidates.
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Affiliation(s)
- Siva S Panda
- Department of Chemistry and Physics, Augusta University, Augusta, GA 30912, USA.,Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Adel S Girgis
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt
| | - Atish Prakash
- Division of Pediatric CNS Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Leena Khanna
- Department of Chemistry, University of Delhi, Delhi 110007, India.,Guru Gobind Singh Indraprastha University, Sector-16 C, Dwarka, New Delhi 110078, India
| | - Pankaj Khanna
- Department of Chemistry, University of Delhi, Delhi 110007, India.,Acharya Narendra Dev College, University of Delhi, Govindpuri, Kalkaji, New Delhi 110019, India
| | - ElSayed M Shalaby
- X-Ray Crystallography. Lab., Physics Division, National Research Centre, Dokki, Giza 12622, Egypt
| | - Nehmedo G Fawzy
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt
| | - Subhash C Jain
- Department of Chemistry, University of Delhi, Delhi 110007, India
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Ahmad S, Singhal A, Nisa K, Chauhan SMS. Synthesis of Selenium and Tellurium Core-Modified Azuliporphyrinogens and Benziporphyrinogens and Corresponding Carbaporphyrinoids. Inorg Chem 2018; 57:11333-11340. [DOI: 10.1021/acs.inorgchem.8b00648] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sohail Ahmad
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Anchal Singhal
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Kharu Nisa
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - S. M. S. Chauhan
- Department of Chemistry, University of Delhi, Delhi 110007, India
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13
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Białek MJ, Sprutta N, Latos-Grażyński L. Coordination-Induced Molecular Tweezing: Ruthenium Clusters Docked at Azuliporphyrinogens. Inorg Chem 2016; 55:12061-12073. [PMID: 27934301 DOI: 10.1021/acs.inorgchem.6b02228] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of [Ru3(CO)12] with a series of conformationally flexible thiaazuliporphyrinogens, namely, dithiadiazuli-, thiatriazuli- and tetraazuliporphyrinogen, yielded a series of complexes with two azulene rings coordinated by either Ru2(CO)5 and Ru4(CO)9 or two Ru4(CO)9 clusters. For dithiadiazuliporphyrinogen, three fundamental arrangements were detected, with two clusters being located at the same side or different sides of the meso plane. Coordination altered the electron density on the rings, allowing for dispersion-promoted interactions between coordinated azulenes. To create this face-to-face arrangement, the ligand framework performs a tweezing movement with coordinated azulenes approaching each other. The tweezer-like arrangement of the coordinated azulene rings assists the formation of azulene inclusion complexes as determined by 1H NMR titration.
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Affiliation(s)
- Michał J Białek
- Department of Chemistry, University of Wrocław 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland
| | - Natasza Sprutta
- Department of Chemistry, University of Wrocław 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland
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Taniguchi M, Lindsey JS. Synthetic Chlorins, Possible Surrogates for Chlorophylls, Prepared by Derivatization of Porphyrins. Chem Rev 2016; 117:344-535. [DOI: 10.1021/acs.chemrev.5b00696] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Masahiko Taniguchi
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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Abstract
Sensing of metal ions and anions is of great importance because of their widespread distribution in environmental systems and biological processes. Colorimetric and fluorescent chemosensors based on organic molecular species have been demonstrated to be effective for the detection of various ions and possess the significant advantages of low cost, high sensitivity, and convenient implementation. Of the available classes of organic molecules, porphyrin analogues possess inherently many advantageous features, making them suitable for the design of ion chemosensors, with the targeted sensing behavior achieved and easily modulated based on their following characteristics: (1) NH moieties properly disposed for binding of anions through cooperative hydrogen-bonding interactions; (2) multiple pyrrolic N atoms or other heteroatoms for selectively chelating metal ions; (3) variability of macrocycle size and peripheral substitution for modulation of ion selectivity and sensitivity; and (4) tunable near-infrared emission and good biocompatibility. In this Review, design strategies, sensing mechanisms, and sensing performance of ion chemosensors based on porphyrin analogues are described by use of extensive examples. Ion chemosensors based on normal porphyrins and linear oligopyrroles are also briefly described. This Review provides valuable information for researchers of related areas and thus may inspire the development of more practical and effective approaches for designing high-performance ion chemosensors based on porphyrin analogues and other relevant compounds.
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Affiliation(s)
- Yubin Ding
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology , Shanghai 200237, P. R. China.,Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University , Nanjing, Jiangsu 210093, China
| | - Wei-Hong Zhu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology , Shanghai 200237, P. R. China
| | - Yongshu Xie
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology , Shanghai 200237, P. R. China
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16
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Ahmad S, Yadav KK, Bhattacharya S, Chauhan P, Chauhan SMS. Synthesis of 21,23-selenium- and tellurium-substituted 5-porphomethenes, 5,10-porphodimethenes, 5,15-porphodimethenes, and porphotrimethenes and their interactions with mercury. J Org Chem 2015; 80:3880-90. [PMID: 25803565 DOI: 10.1021/acs.joc.5b00007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The 3+1 condensation of symmetrical 16-Selena/telluratripyrranes with symmetrical selenophene-2,5-diols/tellurophene-2,5-diols in the presence of BF3-etheratre or BF3-methanol followed by oxidation with DDQ gave 5,10-porphodimethenes, whereas the process with unsymmetrical selenophene-2,5-diols/tellurophene-2,5-diols gave 5-porphomethenes. In addition, the reaction of unsymmetrical 16-Selena/telluratripyrranes with symmetrical selenophene-2,5-diols/tellurophene-2,5-diols gave the corresponding porphotrimethenes, whereas the process with unsymmetrical selenophene-2,5-diols/tellurophene-2,5-diols gave the 5,15-porphodimethenes. The structures of different products were characterized by IR, (1)H and (13)C NMR, (1)H-(1)H COSY, CHN analysis, and mass spectrometry. The binding of mercury with the calix[4]phyrins mentioned above had been observed in the decreasing order of porphodimethenes > porphomethenes > porphotrimethenes by UV-vis and (1)H NMR spectroscopy.
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Affiliation(s)
- Sohail Ahmad
- Bioorganic Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Kumar Karitkey Yadav
- Bioorganic Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Soumee Bhattacharya
- Bioorganic Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Prashant Chauhan
- Bioorganic Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - S M S Chauhan
- Bioorganic Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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