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Tewary D, Behera KC, Turner DR, Ravikanth M. Synthesis of pyridyl functionalized 3-pyrrolyl BODIPY based fluoroprobes and application towards highly selective detection of picric acid. Phys Chem Chem Phys 2024; 26:22479-22490. [PMID: 39145604 DOI: 10.1039/d4cp02715a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
A series of pyridyl-coupled 3-pyrrolyl BODIPY fluoroprobes were synthesized by varying the position of the pyridyl/N-methylated pyridyl group at the α-/meso-position of the 3-pyrrolyl BODIPY scaffold and thoroughly characterized by HRMS and 1D/2D NMR techniques. Our studies indicated that only the water-soluble N-methylated p-pyridyl 3-pyrrolyl BODIPY among various pyridyl-coupled 3-pyrrolyl BODIPYs synthesized here showed an effective and exclusive sensing for picric acid (HPA). The N-methylated p-pyridyl 3-pyrrolyl BODIPY rapidly detects HPA in an aqueous medium with exceptional selectivity, sensitivity (LOD = 7.90 pM), and high binding affinity (Ka = 4·94 × 108 M-1) through both chromogenic and fluorogenic signalling modes. Our studies support the formation of a charge transfer complex between cationic N-methylated p-pyridyl 3-pyrrolyl BODIPY and picrate as verified by absorption, fluorescence, electrochemical, and NMR techniques. DFT and TD-DFT studies further support the structural and experimental observations, including the sensing mechanism of HPA.
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Affiliation(s)
- Debendra Tewary
- Department of Chemistry, IIT Bombay, Powai-400076, Mumbai, India.
- IITB- Monash Research Academy, IIT Bombay, Powai-400076, Mumbai, India
| | | | - David R Turner
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
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Sarkar A, Behera KC, Ravikanth M. Synthesis and studies of covalently linked (BODIPY) 2-3-pyrrolyl BODIPY triads. Dalton Trans 2024; 53:11543-11555. [PMID: 38919045 DOI: 10.1039/d4dt01356e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Two novel covalently linked triads containing one 3-pyrrolyl BODIPY unit and two BODIPY units were synthesized over a sequence of steps using meso-(p-formylphenyl)-3-pyrrolyl BODIPY as a key precursor. Both triads were thoroughly characterized and studied by using HRMS, 1D and 2D NMR spectroscopy, X-ray crystallography, absorption, steady-state and time-resolved fluorescence, cyclic voltammetry, and DFT/TD-DFT techniques. X-ray structural analysis of these triads revealed that the dipyrrin units of both meso-BODIPY and 3-pyrrolyl BODIPY were oriented in the same plane whereas the dipyrrin unit of the α-BODIPY unit was oriented almost perpendicular to that of the 3-pyrrolyl BODIPY unit. Both triads showed two well-separated absorption bands corresponding to BODIPY and 3-pyrrolyl BODIPY units in the 510-675 nm region. In these triads, the BODIPY unit absorbs in the higher energy region and acts as an energy donor whereas the 3-pyrrolyl BODIPY unit absorbs in the lower energy region and acts as an energy acceptor. Steady-state and time-resolved fluorescence studies of these triads indicated the possibility of intramolecular singlet-singlet energy transfer with almost 98% efficiency from the BODIPY units to the 3-pyrrolyl BODIPY unit upon selective excitation of the BODIPY unit in both triads. DFT and TD-DFT investigations corroborated the experimental findings.
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Affiliation(s)
- Abani Sarkar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Kanhu Charan Behera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Mangalampalli Ravikanth
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Behera KC, Mohanty R, Ravikanth M. An α-benzithiazolyl 3-pyrrolyl BODIPY probe for ratiometric selective sensing of cyanide ions and bioimaging studies. Phys Chem Chem Phys 2024; 26:5868-5878. [PMID: 38314523 DOI: 10.1039/d3cp05230c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
A simple chromo-fluorogenic chemodosimeter probe, α-benzithiazolyl 3-pyrrolyl BODIPY, was synthesized by reacting α-formyl 3-pyrrolyl BODIPY with 2-aminothiophenol in DMF at reflux under basic conditions. The probe was structurally characterized by X-ray, HR-MS, and 1D & 2D NMR techniques. The X-ray structure revealed that the appended pyrrole was almost in the plane with a small deviation of 12.15° from the 12-atom mean plane of the BF2-dipyrrin core and the benzithiazolyl moiety was also deviated by 18.74° from the BF2-dipyrrin core. The α-benzithiazolyl 3-pyrrolyl BODIPY exhibits one intense absorption band at 608 nm and a less intense band at 412 nm corresponding to the 3-pyrrolyl BODIPY and benzithiazolyl moiety, respectively. The strongly fluorescent probe shows one intense emission band at 637 nm with a quantum yield of 0.48. The probe acted as an exclusive colorimetric and chemodosimetric sensor for CN- ions over other anions with high sensitivity (LOD = 13 nM) and quick response time (10 s) in an aqueous CH3CN medium. The CN- ion attacks the imine group of the benzithiazolyl moiety of 3via a nucleophilic addition reaction and converts the sp2 to sp3 carbon which disrupts the conjugation between the 3-pyrrolyl BODIPY and benzithiazolyl moieties, which is reflected in the clear colour change from red fluorescence to blue fluorescence as well as significant changes in the spectral and electrochemical properties. The detection of cyanide with the probe for biological applications was also performed with plant tissue. DFT/TD-DFT studies were in agreement with the experimental observations.
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Affiliation(s)
- Kanhu Charan Behera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Roshnara Mohanty
- CSIR - National Environmental Engineering Research Institute, Chennai Zonal Laboratory, Chennai 600113, India
| | - Mangalampalli Ravikanth
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Behera KC, Ravikanth M. A white light emitting single halochromic hydrazine bridged bis(3-pyrrolyl BODIPY) fluorophore. Phys Chem Chem Phys 2023; 25:32584-32593. [PMID: 37999923 DOI: 10.1039/d3cp04234k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
In search of white light emitting fluorophores, a hydrazine bridged Schiff base compound, bis(3-pyrrolyl BODIPY), was synthesized by condensing readily available α-formyl 3-pyrrolyl BODIPY with hydrazine hydrate in CH3OH under reflux for 5 h followed by recrystallization. Bis(3-pyrrolyl BODIPY) was thoroughly characterized by HR-MS, 1D and 2D NMR, and X-ray crystallography. The X-ray structure revealed that the 3-pyrrolyl BODIPY units in the dyad were arranged trans to each other with respect to the hydrazine moiety. Bis(3-pyrrolyl BODIPY) showed absorption bands in the region of 390-705 nm and exhibited multiple fluorescence bands in the region of 395-720 nm at different excitation wavelengths. The protonated derivative of bis(3-pyrrolyl BODIPY) generated by the addition of TFA to its CH2Cl2 solution showed significant changes in the optical properties and generated white fluorescence under UV light with specific emission bands observed in blue, green, and red regions, indicating that bis(3-pyrrolyl)BODIPY is a single white light emitting halochromic fluorophore under acidic conditions. DFT and TD-DFT studies justify the structural and electronic properties of the protonated derivative of bis(3-pyrrolyl BODIPY) exhibiting white light emission.
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Affiliation(s)
- Kanhu Charan Behera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Mangalampalli Ravikanth
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Chauhan P, Behera KC, Ravikanth M. Synthesis, Structure, Spectral, Electrochemical, and Theoretical Studies of Ru(II) Complexes of 3-Pyrrolyl BODIPY-Based Ligands. Inorg Chem 2023; 62:13919-13928. [PMID: 37584186 DOI: 10.1021/acs.inorgchem.3c01833] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
3-Pyrrolyl BODIPY having an appended pyrrolyl group at the 3-position of BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) and its functionalized derivatives have been used as ligands to prepare one example of Ru(II) complex of pyrrolyl dipyrrin and three unique examples of bichromophoric BODIPY-Ru(II) complexes in good yields. The complexes were characterized by HR-MS, 1D and 2D NMR, X-ray analysis for two complexes, absorption, cyclic voltammetry, and DFT/TD-DFT techniques. The X-ray structure of the Ru(II) complex of pyrrolyl dipyrrin revealed that the geometry around the Ru(II) ion was pseudo-octahedral with an arene unit occupying three coordination sites in η6-fashion and two nitrogen atoms of the dipyrrin ring and one chloro group adopting the "three legs piano-stool" structure. The X-ray structure of the bichromophoric BODIPY-Ru(II) complex revealed that the BODIPY core was planar and the central B(III) was coordinated with two pyrrole nitrogens of the dipyrrin unit and two axial fluoride ions in a tetrahedral geometry, and Ru(II) was bonded to appended pyrrole "N" and "N" of benzimidazole substituent present at the α-position of appended pyrrole, one chloro group, and one arene ring in a pseudo-octahedral geometry. The spectral studies revealed that the electronic properties of the BODIPY unit in BODIPY-Ru(II) complexes were significantly altered, and electrochemical studies indicated that the BODIPY-Ru(II) complexes exhibit one oxidation corresponding to Ru(II) to Ru(III) and one reduction corresponding to the BODIPY unit. The DFT/TD-DFT studies corroborated the experimental observations.
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Affiliation(s)
- Pinky Chauhan
- Department of Chemistry, IIT Bombay, Powai, Mumbai 400076, India
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Pushpanandan P, Behera KC, Ravikanth M. Pd(II), Ni(II), and Cu(II) complexes of α,α'-ditolylmethanone dipyrroethene. Dalton Trans 2023; 52:6882-6889. [PMID: 37157997 DOI: 10.1039/d3dt00476g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Dipyrromethenes containing two pyrrole rings connected by one meso-carbon are versatile monoanionic bidentate ligands and form coordination complexes with many metals/nonmetals/metalloids. Dipyrroethenes containing one additional meso-carbon compared to dipyrromethenes have more space between coordinating pyrrole nitrogens and provide a good coordination environment but have not been explored as ligands in coordination chemistry. Dipyrroethenes are dianionic bidentate ligands and by suitable modifications, the coordination environment of dipyrroethenes can be changed further. Herein, we successfully synthesized α,α'-ditolylmethanone dipyrroethene which is a bipyrrolic tetradentate ligand with an ONNO ligand core and used it for the synthesis of novel Pd(II), Ni(II), and Cu(II) metal complexes by treating it with respective metal salts in CH2Cl2/CH3OH at room temperature. The X-ray crystallographic structure of the metal complexes showed that the M(II) ion was coordinated to the ONNO atoms of the ligand in a perfect square planar geometry. The NMR studies of Pd(II) and Ni(II) complexes also supported the highly symmetric nature of the metal complexes. The absorption spectra of the metal complexes showed strong bands in the region of 300-550 nm. The electrochemical studies of metal complexes revealed that only ligand-based oxidation and reduction were observed. The DFT and TD-DFT studies were in agreement with the experimental observations. Our preliminary studies indicated that the Pd(II) complex can be used as a catalyst for the Fujiwara-Moritani olefination reaction.
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Horetski M, Gorlova A, Płocińska R, Brzostek A, Faletrov Y, Dziadek J, Shkumatov V. Synthesis, Optical Properties, Preliminary Antimycobacterial Evaluation and Docking Studies of Trifluoroacetylated 3‐Pyrrolyl Boron‐Dipyrromethene. ChemistrySelect 2022. [DOI: 10.1002/slct.202200506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Matvey Horetski
- Department of Macromolecular Compounds Belarusian State University 14 Leningradskaya Street. Minsk 220030 Belarus
| | - Anna Gorlova
- Department of Natural Sciences Novosibirsk State University 1 Pirogova Street. Novosibirsk 630090 Russia
| | - Renata Płocińska
- The Institute of Medical Biology Polish Academy of Sciences 106 Lodowa Street. Lodz 93-232 Poland
| | - Anna Brzostek
- The Institute of Medical Biology Polish Academy of Sciences 106 Lodowa Street. Lodz 93-232 Poland
| | - Yaroslav Faletrov
- Department of Macromolecular Compounds Belarusian State University 14 Leningradskaya Street. Minsk 220030 Belarus
| | - Jarosław Dziadek
- The Institute of Medical Biology Polish Academy of Sciences 106 Lodowa Street. Lodz 93-232 Poland
| | - Vladimir Shkumatov
- Department of Macromolecular Compounds Belarusian State University 14 Leningradskaya Street. Minsk 220030 Belarus
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A new 3-substituted BODIPY dye: Synthesis, crystal structure, photophysical, non-linear optic and OLED properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Panchavarnam S, Pushpanandan P, Ravikanth M. Synthesis, Structure, and Properties of Helical Bis-Cu(II) Complex of Linear Hexapyrrolic Ligand. Inorg Chem 2022; 61:1562-1570. [PMID: 35007062 DOI: 10.1021/acs.inorgchem.1c03329] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The chemistry of metal helical complexes has attracted wide interest not only because of their resemblance with DNA structure but also due to their unique photophysical and chiroptical properties. Linear hexapyrrolic ligand 1 has been designed and synthesized using 3-pyrrolyl BODIPY as a key precursor. The reactivity of the appended pyrrole group of 3-pyrrolyl BODIPY was taken as an advantage to synthesize bis(3-pyrrolyl BODIPY) by treating 3-pyrrolyl BODIPY with 10 equiv of acetone in CHCl3 under acid-catalyzed conditions and afforded bis(3-pyrrolyl BODIPY) 2 in 20% yield. Bis(3-pyrrolyl BODIPY) 2, in which two 3-pyrrolyl BODIPY units were connected via sp3 meso carbon, was very stable, and its identity was confirmed by HR-MS, NMR, and X-ray crystallographic analysis. The X-ray structure revealed that the 3-pyrrolyl BODIPY moieties in bis(3-pyrrolyl BODIPY) 2 remained almost planar and arranged at an angle of 98.4° with each other, leading to a V-shaped conformation. In the next step, bis(3-pyrrolyl BODIPY) 2 was treated with AlCl3 in acetonitrile/methanol at reflux to afford hexapyrrolic ligand 1. Hexapyrrolic ligand 1 was treated with CuCl2 in acetonitrile at room temp for 1 h followed by crystallization to afford helical bis-Cu(II) complex 1-Cu. Bis-Cu(II) complex 1-Cu was characterized and studied by HR-MS, X-ray crystallography, ESR, absorption, and DFT/TD-DFT techniques. The X-ray structure revealed that the bis-Cu(II) complex was a double-stranded bimetallic helicate and each Cu(II) ion was coordinated to four nitrogen atoms of two dipyrrin units from two hexapyrrolic ligands in a distorted tetrahedral geometry. The crystal packing diagram showed that the bis-Cu(II) complex formed as a racemic mixture containing both M and P isomers which was unable to isolate. The ESR spectrum of bis-Cu(II) complex 1-Cu indicated the presence of two noninteracting Cu(II) ions in slightly different coordination environments. DFT and TD-DFT studies were in agreement with the experimental observations of bis(3-pyrrolyl BODIPY) 2 complex and bis-Cu(II) complex 1-Cu.
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Affiliation(s)
- Sabari Panchavarnam
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Poornenth Pushpanandan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Mangalampalli Ravikanth
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
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Panchavarnam S, Sengupta R, Ravikanth M. Synthesis, Structure, and Properties of Palladium(II) Complex of α-Formyl Pyrrolyl Dipyrromethene. Dalton Trans 2022; 51:5587-5595. [DOI: 10.1039/d2dt00166g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple α-formyl pyrrolyl dipyrromethene ligand was synthesized by deboronation of BF2-complex of α-formyl pyrrolyl dipyrrin under Lewis acid-catalyzed conditions. The α-formyl pyrrolyl dipyrrin ligand was treated with PdCl2 in...
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Panchavarnam S, Sengupta R, Ravikanth M. Bis-Palladium Complex of α-Benzimidazole 9-Pyrrolyl Dipyrromethene: Synthesis, Structure, and Spectral and Catalytic Properties. Inorg Chem 2021; 60:15686-15694. [PMID: 34605630 DOI: 10.1021/acs.inorgchem.1c02353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new ligand is designed and synthesized in two steps starting from α-formyl 3-pyrrolyl BODIPY. In the first step, the α-formyl 3-pyrrolyl BODIPY was condensed with 1,2-diaminobenzene in toluene at reflux and afforded α-benzimidazole 3-pyrrolyl BODIPY in 16% yield. In the second step, α-benzimidazole 3-pyrrolyl BODIPY was decomplexed upon being treated with Lewis acid AlCl3 and afforded the desired ligand α-benzimidazole 9-pyrrolyl dipyrromethene. However, the ligand was not very stable and reacted further with PdCl2 in CH3CN for 1 h at reflux followed by recrystallization and afforded a novel bis-palladium complex of α-benzimidazole 9-pyrrolyl dipyrromethene in 36% yield. The bis-palladium complex was characterized and studied by high-resolution mass spectrometry, one- and two-dimensional nuclear magnetic resonance, X-ray crystallography, absorption, and density functional theory/time-dependent DFT (DFT/TD-DFT) studies. The X-ray structure revealed that two ligands and two Pd(II) ions were involved in forming a unique complex in which each Pd(II) ion was coordinated to three pyrrole N atoms of the first ligand and the benzimidazole N atom of the second ligand in a distorted square planar geometry. The absorption spectrum of the bis-palladium complex shows ill-defined, broad, and less intense bands in the region of 345-425 nm along with split bands in the higher-wavelength region of 600-630 nm. The bis-palladium complex was nonfluorescent, and the results of DFT/TD-DFT studies were in agreement with the experimental observations. The preliminary studies indicated that the bis-palladium complex can act as an efficient catalyst for coupling different aryl bromides with phenylboronic acid.
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Affiliation(s)
| | - Rima Sengupta
- Indian Institute of Technology, Powai, Mumbai 400076, India
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Sinha A, Umasekhar B, Ravikanth M. Synthesis and studies of covalently linked pyrrolyl bridged fluorescent dimers. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A series of stable fluorescent compounds namely the pyrrolyl bridged bis-(BODIPY) and bis-(22-oxacorrole) dimers were synthesized using pyrrolyl bridged bis-(dipyrromethane) as key precursor. The pyrrolyl bridged bis-(dipyrromethane) was synthesized in two steps by using commercially available compounds and used for the synthesis of pyrrolyl bridged bis-(BODIPY). The chloro groups present at the bridging pyrrole ring of bis-(BODIPY) dimer were replaced with aryl groups by the treatment of two different aryl boronic acids under Suzuki Coupling conditions. In order to show a further use of the pyrrole bridged bis-(dipyrromethane) precursor, it was condensed with 16-oxatripyrrane which rendered the pyrrolyl bridged bis-(22-oxacorrole) dimer as a green fluorescent compound in 8% yield. The dimers were thoroughly characterized by NMR and mass and the properties were investigated by absorption, fluorescence, electrochemical and DFT/TD-DFT studies. DFT studies showed that the bis-(BODIPY) and bis-(22-oxacorrole) dimers were highly symmetric and TD-DFT studies were in agreement with the experimental absorption and redox properties.
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Affiliation(s)
- Avisikta Sinha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Booruga Umasekhar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
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Ojha B, Kumar A, Thorat KG, Ravikanth M. Synthesis and studies of crowned dipyrromethenes based macrocycles. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130574] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Synthesis of BR2 complexes of α-pyrrolyl dipyrrins. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Thorat KG, Chowdhary G, Isar P, Ravikanth M. Covalently Linked meso
-BODIPYnyl Dithiahomoporphyrins: Synthesis and Properties. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800900] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | - Prosenjit Isar
- Indian Institute of Technology; 400076 Powai Mumbai India
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18
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Blázquez-Moraleja A, Cerdán L, García-Moreno I, Avellanal-Zaballa E, Bañuelos J, Jimeno ML, López-Arbeloa I, Chiara JL. Stereochemical and Steric Control of Photophysical and Chiroptical Properties in Bichromophoric Systems. Chemistry 2018; 24:3802-3815. [DOI: 10.1002/chem.201705698] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Indexed: 11/07/2022]
Affiliation(s)
| | - Luis Cerdán
- Instituto Química-Física “Rocasolano”; IQFR-CSIC; Serrano 119 28006 Madrid Spain
| | | | - Edurne Avellanal-Zaballa
- Departamento de Química Física; Universidad del País Vasco-EHU, Facultad de Ciencias y Tecnología; Apartado 644 48080 Bilbao Spain
| | - Jorge Bañuelos
- Departamento de Química Física; Universidad del País Vasco-EHU, Facultad de Ciencias y Tecnología; Apartado 644 48080 Bilbao Spain
| | - M. Luisa Jimeno
- Centro Nacional de Química Orgánica “Manuel Lora Tamayo”; CENQUIOR-CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Iñigo López-Arbeloa
- Departamento de Química Física; Universidad del País Vasco-EHU, Facultad de Ciencias y Tecnología; Apartado 644 48080 Bilbao Spain
| | - Jose Luis Chiara
- Instituto de Química Orgánica General; IQOG-CSIC; Juan de la Cierva 3 28006 Madrid Spain
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Greening SM, Robertson KN, Thompson A. Synthesis and characterization of pyrrolyldipyrrin F-BODIPYs. Photochem Photobiol Sci 2018; 17:89-98. [DOI: 10.1039/c7pp00341b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of synthetic analogs of the tripyrrolic natural product prodigiosin were complexed with boron trifluoride to generate the corresponding F-BODIPYs.
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Yu C, Miao W, Wang J, Hao E, Jiao L. PyrrolylBODIPYs: Syntheses, Properties, and Application as Environment-Sensitive Fluorescence Probes. ACS OMEGA 2017; 2:3551-3561. [PMID: 31457674 PMCID: PMC6641347 DOI: 10.1021/acsomega.7b00444] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 06/28/2017] [Indexed: 05/26/2023]
Abstract
Four pyrrole B-ring-functionalized pyrrolylBODIPYs and their B-ring unsubstituted analogues were synthesized from easily accessible starting 5-halo-2-formylpyrroles and were characterized by nuclear magnetic resonance, high-resolution mass spectrometry, X-ray analysis, and optical/electronic properties. In great contrast to the substitution(s) at the other two pyrrolic units, electron-donating substituent(s) at pyrrole B-ring bring significant blue shift of the absorption and emission bands. Cyclic voltammetry and density functional theory calculations indicate that this blue shift may be attributed to the increased highest occupied molecular orbital and the lowest unoccupied molecular orbital energy levels and the overall increase in the energy band gaps. These pyrrolylBODIPYs generally show intense absorption (centered at 570-624 nm) and fluorescence emission (582-654 nm) in nonpolar solvents. A gradual decrease in the fluorescence intensity was observed for these dyes with the increase in solvent dipolar moment, which combines with the red to far-red absorption/emission, rendering these pyrrolylBODIPYs potential applications as environment-sensitive fluorescence probes as demonstrated in this work for bovine serum albumin.
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Sharma R, Ravikanth M. Synthesis, Structure and Properties of the First Examples of Hexacoordinate Sn
IV
Complexes of Pyrrolyldipyrrins. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601179] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ritambhara Sharma
- Department of Chemistry Indian Institute of Technology Bombay Powai 400076 Mumbai India
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Sharma R, Gobeze HB, D'Souza F, Ravikanth M. Panchromatic Light Capture and Efficient Excitation Transfer Leading to Near‐IR Emission of BODIPY Oligomers. Chemphyschem 2016; 17:2516-24. [DOI: 10.1002/cphc.201600317] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Ritambhara Sharma
- Department of Chemistry Indian Institute of Technology, Bombay Powai Mumbai 400 076 India
| | - Habtom B. Gobeze
- Department of Chemistry University of North Texas 1155 Union Circle #305070 Denton TX 76203-5017 USA
| | - Francis D'Souza
- Department of Chemistry University of North Texas 1155 Union Circle #305070 Denton TX 76203-5017 USA
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24
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Yu C, Wu Q, Wang J, Wei Y, Hao E, Jiao L. Red to Near-Infrared Isoindole BODIPY Fluorophores: Synthesis, Crystal Structures, and Spectroscopic and Electrochemical Properties. J Org Chem 2016; 81:3761-70. [DOI: 10.1021/acs.joc.6b00414] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Changjiang Yu
- The Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Qinghua Wu
- The Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Jun Wang
- The Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Yun Wei
- The Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Erhong Hao
- The Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Lijuan Jiao
- The Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
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25
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Prasannan D, Raghav D, Sujatha S, Hareendrakrishna kumar H, Rathinasamy K, Arunkumar C. Synthesis, structure, photophysical, electrochemical properties and antibacterial activity of brominated BODIPYs. RSC Adv 2016. [DOI: 10.1039/c6ra12258b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The unusual di-bromo product, 5b, confirmed by spectral analysis, showed the most potency with the lowest IC50 and MIC values, with excellent activity comparable to the standard antibacterial drug, tetracycline.
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Affiliation(s)
- Dijo Prasannan
- Bioinorganic Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Kozhikode
- India – 673 601
| | - Darpan Raghav
- School of Biotechnology
- National Institute of Technology Calicut
- Kozhikode
- India – 673 601
| | - Subramaniam Sujatha
- Bioinorganic Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Kozhikode
- India – 673 601
| | - Haritha Hareendrakrishna kumar
- Bioinorganic Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Kozhikode
- India – 673 601
| | - Krishnan Rathinasamy
- School of Biotechnology
- National Institute of Technology Calicut
- Kozhikode
- India – 673 601
| | - Chellaiah Arunkumar
- Bioinorganic Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Kozhikode
- India – 673 601
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26
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Sharma R, Lakshmi V, Chatterjee T, Ravikanth M. Effects of five membered aromatic heterocycles at the meso-position on the electronic properties of 3-pyrrolyl BODIPY. NEW J CHEM 2016. [DOI: 10.1039/c6nj00118a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, structures and properties of 3-pyrrolyl BODIPYs containing five membered aromatic heterocycles such as pyrrole, thiophene and furan at the meso-position are described.
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Affiliation(s)
- Ritambhara Sharma
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Vellanki Lakshmi
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Tamal Chatterjee
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
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27
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Sharma R, Gobeze HB, Chatterjee T, Karr PA, D'Souza F, Ravikanth M. High singlet oxygen production and negative solvatochromism of octabrominated 3-pyrrolyl boron dipyrromethenes. RSC Adv 2016. [DOI: 10.1039/c6ra01294a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The newly synthesized and structurally characterized octabrominated 3-pyrrolyl boron dipyrromethenes is shown reveal negative solvatochromism, and quantitative generation of singlet oxygen; properties relevant to develop new PDT agents.
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Affiliation(s)
- Ritambhara Sharma
- Department of Chemistry
- Indian Institute of Technology
- Mumbai 400 076
- India
| | | | - Tamal Chatterjee
- Department of Chemistry
- Indian Institute of Technology
- Mumbai 400 076
- India
| | - Paul. A. Karr
- Department of Physical Sciences and Mathematics
- Wayne State College
- Wayne
- USA
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28
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Lakshmi V, Lee WZ, Ravikanth M. Synthesis, structure and spectral and electrochemical properties of 3-pyrrolyl BODIPY-metal dipyrrin complexes. Dalton Trans 2014; 43:16006-14. [DOI: 10.1039/c4dt01970a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Jiang T, Zhang P, Yu C, Yin J, Jiao L, Dai E, Wang J, Wei Y, Mu X, Hao E. Straightforward Synthesis of Oligopyrroles through a Regioselective SNAr Reaction of Pyrroles and Halogenated Boron Dipyrrins. Org Lett 2014; 16:1952-5. [DOI: 10.1021/ol500507f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ting Jiang
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Ping Zhang
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Changjiang Yu
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Jian Yin
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Lijuan Jiao
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - En Dai
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Jun Wang
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Yun Wei
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Xiaolong Mu
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Erhong Hao
- Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based
Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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30
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Lakshmi V, Chatterjee T, Ravikanth M. Lewis Acid Assisted Decomplexation of F-BODIPYs to Dipyrrins. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301662] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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31
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Abstract
meso-N-Butylcarbazole substituted BODIPYs showed red shifted emission, large Stokes shifts and efficient energy transfer from the meso-carbazole unit to the BODIPY core.
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Affiliation(s)
| | - Iti Gupta
- Indian Institute of Technology Gandhinagar
- Ahmedabad-382424, India
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32
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Lakshmi V, Ravikanth M. Synthesis of conjugated BODIPYs via the Wittig reaction. J Org Chem 2013; 78:4993-5000. [PMID: 23627718 DOI: 10.1021/jo4006969] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A Wittig reaction was employed to synthesize conjugated BODIPYs in high yields by treating formylated BODIPYs with alkyl/aryl ylides under simple room temperature conditions. Treatment of 3,5-diformyl BODIPYs or α-formyl 3-pyrrolyl BODIPY with different alkyl/aryl ylides in CH2Cl2 at room temperature for 2 h followed by straightforward column chromatographic purification on silica afforded conjugated BODIPYs in ~65-90% yields. This is an alternate method to Knoevenagel and Heck reactions which have been used to synthesize such conjugated BODIPYs. The method works very efficiently, and we prepared 12 substituted BODIPYs including cholesterol-substituted BODIPYs to demonstrate the versatility of the reaction. The spectral, electrochemical, and fluorescence properties of these conjugated BODIPYs are also described.
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