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Fusè M, Mazzeo G, Ghidinelli S, Evidente A, Abbate S, Longhi G. Experimental and theoretical aspects of magnetic circular dichroism and magnetic circularly polarized luminescence in the UV, visible and IR ranges: A review. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124583. [PMID: 38850611 DOI: 10.1016/j.saa.2024.124583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/21/2024] [Accepted: 05/30/2024] [Indexed: 06/10/2024]
Abstract
A historical sketch of the MCD (magnetic circular dichroism) spectroscopy is reported in its experimental and theoretical aspects. MCPL (magnetic circularly polarized luminescence) is also considered. The main studies are presented encompassing porphyrinoid systems, aggregates and materials, as well as simple organic molecules useful for the advancement of the interpretation. The MCD of chiral systems is discussed with special attention to new studies of natural products with potential pharmaceutical valence, including Amaryllidaceae alkaloids and related isocarbostyrils. Finally, the vibrational form of MCD, called MVCD, which is recorded in the IR part of the spectrum is also discussed. A final brief note on perspectives is given.
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Affiliation(s)
- Marco Fusè
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Giuseppe Mazzeo
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Simone Ghidinelli
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Antonio Evidente
- Institute of Sciences of Food Production, National Research Council, Via Amendola 122/O, 70185 Bari, Italy
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy; Istituto Nazionale di Ottica, INO-CNR, Research Unit of Brescia, c/o CSMT, Via Branze 35, 25123 Brescia, Italy
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy; Istituto Nazionale di Ottica, INO-CNR, Research Unit of Brescia, c/o CSMT, Via Branze 35, 25123 Brescia, Italy
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Kuroda T, Kitahara M, Yagi S, Imai Y. External magnetic field-induced circularly polarized luminescence and electroluminescence from optically inactive thermally activated delayed fluorescence material 4CzIPN. Front Chem 2023; 11:1281168. [PMID: 37927569 PMCID: PMC10622766 DOI: 10.3389/fchem.2023.1281168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/02/2023] [Indexed: 11/07/2023] Open
Abstract
An achiral optically inactive organic luminophore, 4CzIPN, exhibits circularly polarized thermally activated delayed fluorescence when photoexcited under an external magnetic field. By embedding this luminophore in an active emission layer, an external-magnetic-field-induced circularly polarized electroluminescent device is developed in this study. The Faraday geometry of the applied magnetic field completely controls the direction of rotation of 4CzIPN-derived circularly polarized luminescence and electroluminescence.
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Affiliation(s)
- Takumi Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-osaka, Japan
| | - Maho Kitahara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-osaka, Japan
| | - Shigeyuki Yagi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, Osaka, Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-osaka, Japan
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MCD and Induced CD of a Tetraphenoxyperylene-Based Dye in Chiral Solvents: An Experimental and Computational Study. Symmetry (Basel) 2022. [DOI: 10.3390/sym14061108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The magnetic circular dichroism (MCD) spectrum of N,N′-bis(2,6-diisopropylphenyl)-1,6,7,12-tetraphenoxyperylene-3,4:9,10-tetracarboxydiimide, also known as Lumogen Red 300 or ROT-300, has been recorded both in achiral and chiral solvents. The induced CD spectra in chiral solvents have, similarly, been recorded. A discussion of the spectroscopic response, both in CD and in MCD experiments, is presented in this paper. Both types of spectra have been predicted most satisfactorily by DFT calculations; the CD spectra were obtained by assuming the prevalence of one “enantiomeric” conformer and the same set of conformers could also be used for MCD, since “enantiomeric” structures present identically in MCD spectra.
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Hara K, Morimoto A, Matsudaira K, Suzuki S, Yagi S, Fujiki M, Imai Y. External Magnetic Field Driven, Ambidextrous Circularly Polarized Electroluminescence from Organic Light Emitting Diodes Containing Racemic Cyclometalated Iridium(III) Complexes. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202100253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kengo Hara
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
| | - Ami Morimoto
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599–8531 Japan
| | - Kana Matsudaira
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
| | - Satoko Suzuki
- JASCO Corporation 2967-5 Ishikawa, Hachioji Tokyo 192–8537 Japan
| | - Shigeyuki Yagi
- Department of Applied Chemistry Graduate School of Engineering Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599–8531 Japan
| | - Michiya Fujiki
- Graduate School of Science and Technology Nara Institute of Science and Technology 8916-5 Takayama, Ikoma Nara 630–0192 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577–8502 Japan
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Kimoto T, Okuno M, Nunotani N, Imanaka N, Fujiki M, Imai Y. Mirror symmetric Green–Color magnetic circularly polarized luminescence from TbIII–containing inorganics under North-up and South-up Faraday geometries. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.109034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ghidinelli S, Abbate S, Mazzeo G, Paolesse R, Pomarico G, Longhi G. MCD and MCPL Characterization of Luminescent Si(IV) and P(V) Tritolylcorroles: The Role of Coordination Number. ACS OMEGA 2021; 6:26659-26671. [PMID: 34661019 PMCID: PMC8515824 DOI: 10.1021/acsomega.1c04028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Two triarylcorrole complexes, (hydroxy)[5,10,15-tritolylcorrolato]silicon-(TTC)Si(OH) and (dihydroxy)[5,10,15-tritolylcorrolato]phosphorous-(TTC)P(OH) 2 , have been investigated by magnetic circular dichroism (MCD) and magnetic circularly polarized luminescence (MCPL). The spectroscopic investigations have been combined with explicit calculation of MCD response through time-dependent density functional theory (TD-DFT) formalism. This has allowed us to better define the role of molecular orbitals in the transitions associated with the Soret and Q bands. Besides and more importantly, MCD has made it possible to follow the titration process of (TTC)Si(OH) in dimethyl sulfoxide (DMSO) solution with NaF and of (TTC)P(OH) 2 in dichloromethane solution with alcohols in a complementary and, we dare say, more sensitive way with respect to absorption and fluorescence data. Finally, the MCPL spectra and the ancillary TD-DFT calculations have allowed us to characterize the excited state of (TTC)Si(OH).
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Affiliation(s)
- Simone Ghidinelli
- Department
of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Sergio Abbate
- Department
of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
- National
Institute of Optics (INO), CNR, Research
Unit of Brescia, c/o
CSMT, via Branze 45, 25123 Brescia, Italy
| | - Giuseppe Mazzeo
- Department
of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Roberto Paolesse
- Department
of Chemical Science and Technologies, University
of Rome Tor Vergata, Via della Ricerca Scientifica snc, 00133 Rome, Italy
| | - Giuseppe Pomarico
- Department
of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
- CSGI,
Research Center for Colloids and Nanoscience, Via della Lastruccia 3, Sesto
Fiorentino, 50019 Firenze, Italy
| | - Giovanna Longhi
- Department
of Molecular and Translational Medicine, University of Brescia, Viale Europa 11, 25123 Brescia, Italy
- National
Institute of Optics (INO), CNR, Research
Unit of Brescia, c/o
CSMT, via Branze 45, 25123 Brescia, Italy
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Imai Y. Circularly Polarized Luminescence (CPL) Induced by an External Magnetic Field: Magnetic CPL (MCPL). CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashi-Osaka, Osaka 577-8502 Japan
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Hara N, Kitahara M, Sugimura T, Toda H, Shizuma M, Ito A, Miyasaka M, Fujiki M, Imai Y. Sign dependence of MCPL spectra on type and position of substituent groups of pyrene and phenanthrene derivatives. Phys Chem Chem Phys 2021; 23:8236-8240. [PMID: 33710208 DOI: 10.1039/d1cp00259g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diamagnetic achiral pyrene and phenanthrene derivatives substituted with electron-donating hydroxyl/methoxy groups and electron-withdrawing carboxylic acid groups exhibited clear magnetic circularly polarised luminescence (MCPL) spectra at 360-460 nm in dilute solvents upon the application of N-up and S-up Faraday geometries under an external magnetic field of 1.6 T. Their MCPL signs were also susceptible upon application of the same Faraday geometry.
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Affiliation(s)
- Nobuyuki Hara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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Demissie TB, Sundar MS, Thangavel K, Andrushchenko V, Bedekar AV, Bouř P. Origins of Optical Activity in an Oxo-Helicene: Experimental and Computational Studies. ACS OMEGA 2021; 6:2420-2428. [PMID: 33521480 PMCID: PMC7841950 DOI: 10.1021/acsomega.0c06079] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/24/2020] [Indexed: 05/08/2023]
Abstract
Helicenes are known to provide extremely strong optical activity. Prediction of the properties of helicenes may facilitate their design and synthesis for analytical or materials sciences. On a model 7,12,17-trioxa[11]helicene molecule, experimental results from multiple spectroscopic techniques are analyzed on the basis of density functional theory (DFT) simulations to test computational methodology and analyze the origins of chirality. Infrared (IR), vibrational circular dichroism (VCD), electronic circular dichroism (ECD), magnetic circular dichroism (MCD), and Raman optical activity (ROA, computations only) spectra are compared. Large dissymmetry factors are predicted both for vibrational (ROA/Raman ∼ VCD/IR ∼ 10-3) and electronic (ECD/Abs ∼10-2) optical activity, which could be verified experimentally except for ROA. Largest VCD signals come from a strong vibrational coupling of the C-H in-plane and out-of-plane bending modes in stacked helicene rings. The sum-over-states (SOS) approach appeared convenient for simulation of MCD spectra. Our results demonstrated that selected computational methods can be successfully used for reliable modeling of spectral and chiroptical properties of large helicenes. In particular, they can be used for guiding rational design of strongly chiral chromophores.
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Affiliation(s)
- Taye B. Demissie
- Institute
of Organic Chemistry and Biochemistry, Academy
of Sciences, Flemingovo
náměstí 2, 16610 Prague, Czech Republic
- Materials
Science Program, Department of Chemistry, Addis Ababa University, P. O. Box 1176, Addis Ababa 1176, Ethiopia
- Department
of Chemistry, University of Botswana, Notwane Rd, P/bag
UB 00704 Gaborone, Botswana
| | - M. Shyam Sundar
- Institute
of Organic Chemistry and Biochemistry, Academy
of Sciences, Flemingovo
náměstí 2, 16610 Prague, Czech Republic
| | - Karthick Thangavel
- Institute
of Organic Chemistry and Biochemistry, Academy
of Sciences, Flemingovo
náměstí 2, 16610 Prague, Czech Republic
- Department
of Physics, School of Electrical and Electronics Engineering, SASTRA Deemed University, Thanjavur, 613 401 Tamil Nadu, India
| | - Valery Andrushchenko
- Institute
of Organic Chemistry and Biochemistry, Academy
of Sciences, Flemingovo
náměstí 2, 16610 Prague, Czech Republic
| | - Ashutosh V. Bedekar
- Department
of Chemistry, Faculty of Science, The Maharaja
Sayajirao University of Baroda, Vadodara 390 002, India
| | - Petr Bouř
- Institute
of Organic Chemistry and Biochemistry, Academy
of Sciences, Flemingovo
náměstí 2, 16610 Prague, Czech Republic
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Ghidinelli S, Abbate S, Santoro E, Belviso S, Longhi G. Characterization of "Free Base" and Metal Complex Thioalkyl Porphyrazines by Magnetic Circular Dichroism and TDDFT Calculations. J Phys Chem B 2021; 125:264-280. [PMID: 33351631 PMCID: PMC8016196 DOI: 10.1021/acs.jpcb.0c09277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
![]()
UV–vis
absorption and magnetic circular dichroism (MCD)
spectra of octakis thioethyl “free base” porphyrazine
H2OESPz and its metal complexes MOESPz (M = Mg, Zn, Ni,
Pd, Cu), as well as of [MnOESPz(SH)] were recorded. In the last case,
MCD proved to have quite good sensitivity to the coordination of this
complex with 1-methylimidazole (1-mim) in benzene. Time-dependent
density functional theory (TDDFT) calculations were carried out for
the considered porphyrazine complexes and showed good performance
on comparing with MCD and UV–vis experimental spectra, even
in the open-shell Cu and Mn cases. Calculations accounted for the
red shift observed in the thioalkyl compounds and allowed us to reveal
the role of sulfur atoms in spectroscopically relevant molecular orbitals
and to highlight the importance of the conformations of the thioethyl
external groups. Calculated MCD spectra of [MnOESPz(SH)] confirm the
Mn(III) → Mn(II) redox process, which leads to the [Mn(OESPz)(1-mim)2] species, and the relevance of the spin state for MCD is
revealed.
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Affiliation(s)
- Simone Ghidinelli
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy.,Research Unit of Brescia, CNR, Istituto Nazionale di Ottica (INO), c/o CSMT, via Branze 45, 25123 Brecia, Italy
| | - Ernesto Santoro
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy.,Dipartimento di Scienze, Università della Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Sandra Belviso
- Dipartimento di Scienze, Università della Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale, Università di Brescia, Viale Europa 11, 25123 Brescia, Italy.,Research Unit of Brescia, CNR, Istituto Nazionale di Ottica (INO), c/o CSMT, via Branze 45, 25123 Brecia, Italy
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