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Štellerová D, Lukeš V, Breza M. How Does Pseudo-Jahn-Teller Effect Induce the Photoprotective Potential of Curcumin? Molecules 2023; 28:molecules28072946. [PMID: 37049707 PMCID: PMC10096455 DOI: 10.3390/molecules28072946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
In this paper, the molecular and electronic structure of curcumin is studied. High-symmetric gas-phase tautomers and their deprotonated forms in various symmetry groups are identified. The stability of lower-symmetry structures was explained by using the Pseudo-Jahn-Teller (PJT) effect. This effect leads to stable structures of different symmetries for the neutral enol and keto forms. The presented analysis demonstrated the potential significance of the PJT effect, which may modulate the setting of electronic and vibrational (vibronic) energy levels upon photodynamic processes. The PJT effect may rationalize the photoprotection action and activity of naturally occurring symmetric dyes.
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Ghazaleh Kouchakzadeh. The Connection between Pseudo-Jahn–Teller Effect and Electron Delocalization for Proving the Origin of Equilibrium Geometry of Nitrosyl Halides (Halides = Cl, Br, and I). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421020138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ilkhani AR. Non-planarity in four-membered homo-cyclic compounds A4 (A = O, S, Se, Te, Po) and restoring their planarity: a study of the pseudo-Jahn–Teller effect. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-02615-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Kouchakzadeh G, Jamehbozorgi S. The Role of Pseudo Jahn–Teller Effect in Geometry and Electronic Parameters of Tetrahalodigermene Ge2X4 (X= Cl, Br, I). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419070124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Bhattacharjee R, Majumder T, Datta A. Analysis of pseudo jahn-teller distortion based on natural bond orbital theory: Case study for silicene. J Comput Chem 2019; 40:1488-1495. [PMID: 30854679 DOI: 10.1002/jcc.25815] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/15/2019] [Accepted: 02/19/2019] [Indexed: 01/13/2023]
Abstract
Ground state (GS) instability of nondegenerate molecules in high symmetric structures is understood through Pseudo Jahn-Teller mixing of the electronic states through the vibronic coupling. The general approach involves setting up of a Pseudo Jahn-Teller (PJT) problem wherein one or more symmetry allowed excited states couple to the GS to create vibrational instability along a normal mode. This faces two major complications namely (1) estimating the adiabatic potential energy surfaces for the excited states which are often difficult to describe in case the excited states have charge-transfer or multi-excitonic (ME) character and (2) finding out how many such excited states (all satisfying the symmetry requirements for vibronic coupling) of increasing energies need to be coupled with the GS for a particular PJT problem. An analogous alternative approach presented here for the well-known case of symmetry breaking of planar (D6h ) hexasilabenzene (Si6 H6 ) to the buckled (D3d ) structure involves identifying the second-order donor-acceptor, hyperconjugative interactions (E2 i → j ) that stabilize the distorted structure. Following the recent work of Nori-Shargh and Weinhold, one observes that the orbitals involved in the vibronic coupling between the S0 /Sn states and those for the donor (filled)-acceptor (empty) interactions are identical. In fact, deletion of any particular pair of E2 i → j interaction creates vibrational instability in the buckled structure and as a corollary, deleting it for the planar structure removes its instability. The one-to-one correlation between the natural bond orbital theory and PJT theory assists in an intuitive identification of the relevant (few) excited states from a manifold of computed ones that cause symmetry breaking by vibronic coupling. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
| | - Tirthick Majumder
- School of Chemical Sciences, Jadavpur, Kolkata, West Bengal 700032, India
| | - Ayan Datta
- School of Chemical Sciences, Jadavpur, Kolkata, West Bengal 700032, India
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Deformation of $$\hbox {E}_{4}\,(\hbox {E} = \hbox {P}, \hbox {As}, \hbox {Sb})$$ tetrahedron structures via doping two atoms with elements from group 13: a study of the pseudo-Jahn–Teller effect. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1613-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Nilchi M, Ghiasi R, Mohammadi Nasab E. Pseudo-Jahn–Teller effect in Si 4X4 ( X = F, Cl, Br, I) molecules: a theoretical investigation. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1527961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Masoomeh Nilchi
- Department of Chemistry, Faculty of Science, Arak Branch, Islamic Azad University, Arak, Iran
| | - Reza Ghiasi
- Department of Chemistry, Faculty of Science, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Esmat Mohammadi Nasab
- Department of Chemistry, Faculty of Science, Arak Branch, Islamic Azad University, Arak, Iran
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Instability in pyramidal–tetrahedral structure including elements from group 14 induced by pseudo-Jahn–Teller effect. Theor Chem Acc 2019. [DOI: 10.1007/s00214-018-2402-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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9
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Manipulation of planar structure of 1,2,5- and 1,3,4-triazoles and the pseudo Jahn–Teller effect in their 1-pnictogen derivatives. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-018-0567-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Ilkhani AR. The symmetry breaking phenomenon in heteronine analogues due to the pseudo Jahn-Teller effect. J Mol Model 2019; 25:8. [DOI: 10.1007/s00894-018-3900-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/11/2018] [Indexed: 12/07/2022]
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Ilkhani AR. Instability of two–dimensional structure of dichalcogenin and dipnictogenin octa–heterocyclic systems with 1,2–C6X2(X = O, S, Se, Te, N, P) unsaturated rings. Struct Chem 2018. [DOI: 10.1007/s11224-018-1200-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Hickman RJ, Lang RA, Zeng T. General formalism for vibronic Hamiltonians in tetragonal symmetry and beyond. Phys Chem Chem Phys 2018; 20:12312-12322. [DOI: 10.1039/c8cp01394b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We derive general expansion formulas in vibrational coordinates for all bimodal Jahn–Teller and pseudo-Jahn–Teller Hamiltonians in tetragonal symmetry.
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Affiliation(s)
| | | | - Tao Zeng
- Department of Chemistry
- Carleton University
- Ottawa
- Canada
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Ilkhani AR. Pseudo Jahn-Teller effect in oxepin, azepin, and their halogen substituted derivatives. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417090035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Kummer JR, Brom JM. Geometry and Electronic Structure of Titanabenzene and Its Valence Isomers. J Phys Chem A 2016; 120:10007-10017. [DOI: 10.1021/acs.jpca.6b09886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- John R. Kummer
- Department of Chemistry, University of St. Thomas, St.
Paul, Minnesota 55105, United States
| | - Joseph M. Brom
- Department of Chemistry, University of St. Thomas, St.
Paul, Minnesota 55105, United States
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Chowdhury C, Jahiruddin S, Datta A. Pseudo-Jahn-Teller Distortion in Two-Dimensional Phosphorus: Origin of Black and Blue Phases of Phosphorene and Band Gap Modulation by Molecular Charge Transfer. J Phys Chem Lett 2016; 7:1288-1297. [PMID: 26987273 DOI: 10.1021/acs.jpclett.6b00219] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Phosphorene (Pn) is stabilized as a layered material like graphite, yet it possess a natural direct band gap (Eg = 2.0 eV). Interestingly, unlike graphene, Pn exhibits a much richer phase diagram which includes distorted forms like the stapler-clip (black Pn, α form) and chairlike (blue Pn, β form) structures. The existence of these phases is attributed to pseudo-Jahn-Teller (PJT) instability of planar hexagonal P6(6-) rings. In both cases, the condition for vibronic instability of the planar P6(6-) rings is satisfied. Doping with electron donors like tetrathiafulvalene and tetraamino-tetrathiafulvalene and electron acceptors like tetracyanoquinodimethane and tetracyanoethylene convert blue Pn into N-type and black Pn into efficient P-type semiconductors, respectively. Interestingly, pristine blue Pn, an indirect gap semiconductor, gets converted into a direct gap semiconductor on electron or hole doping. Because of comparatively smaller undulation in blue Pn (with respect to black Pn), the van der Waals interactions between the dopants and blue Pn is stronger. PJT distortions for two-dimensional phosphorus provides a unified understanding of structural features and chemical reactivity in its different phases.
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Affiliation(s)
- Chandra Chowdhury
- Department of Spectroscopy, Indian Association for the Cultivation of Science , Jadavpur - 700032, West Bengal, India
| | - Sheik Jahiruddin
- Department of Spectroscopy, Indian Association for the Cultivation of Science , Jadavpur - 700032, West Bengal, India
| | - Ayan Datta
- Department of Spectroscopy, Indian Association for the Cultivation of Science , Jadavpur - 700032, West Bengal, India
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Bersuker IB. Spontaneous Symmetry Breaking in Matter Induced by Degeneracies and Pseudodegeneracies. ADVANCES IN CHEMICAL PHYSICS 2016. [DOI: 10.1002/9781119165156.ch3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Geometry, Electronic Structure, and Pseudo Jahn-Teller Effect in Tetrasilacyclobutadiene Analogues. Sci Rep 2016; 6:23315. [PMID: 26996445 PMCID: PMC4800417 DOI: 10.1038/srep23315] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 03/04/2016] [Indexed: 11/08/2022] Open
Abstract
We revealed the origin of the structural features of a series of tetrasilacyclobutadiene analogues based on a detailed study of their electronic structure and the pseudo Jahn-Teller effect (PJTE). Starting with the D4h symmetry of the Si4R4 system with a square four-membered silicon ring as a reference geometry, and employing ab initio calculations of energy profiles along lower-symmetry nuclear displacements in the ground and several excited states, we show that the ground-state boat-like and chair-like equilibrium configurations are produced by the PJT interaction with appropriate excited sates. For Si4F4 a full two-mode b1g−b2g adiabatic potential energy surface is calculated showing explicitly the way of transformation from the unstable D4h geometry to the two equilibrium C2h configurations via the D2h saddle point. The PJTE origin of these structural features is confirmed also by estimates of the vibronic coupling parameters. For Si4R4 with large substituents the origin of their structure is revealed by analyzing the PJT interaction between the frontier molecular orbitals. The preferred chair-like structures of Si4R4 analogues with amido substituents, and heavier germanium-containing systems Ge4R4 (potential precursors for semiconducting materials) are predicted.
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Bhattacharyya K, Surendran A, Chowdhury C, Datta A. Steric and electric field driven distortions in aromatic molecules: spontaneous and non-spontaneous symmetry breaking. Phys Chem Chem Phys 2016; 18:31160-31167. [DOI: 10.1039/c6cp05237a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present calculations provide a unified picture of molecular distortions, both spontaneous and external field driven.
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Affiliation(s)
| | - Ammu Surendran
- Department of Chemistry
- Cochin University of Science and Technology (CUSAT)
- Cochin – 682 022
- India
| | - Chandra Chowdhury
- Department of Spectroscopy
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Ayan Datta
- Department of Spectroscopy
- Indian Association for the Cultivation of Science
- Kolkata
- India
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Ilkhani AR, Monajjemi M. The pseudo Jahn–Teller effect of puckering in pentatomic unsaturated rings C4AE5, A = N, P, As, E = H, F, Cl. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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20
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Pratik SM, Chowdhury C, Bhattacharjee R, Jahiruddin S, Datta A. Pseudo Jahn–Teller distortion for a tricyclic carbon sulfide (C6S8) and its suppression in S-oxygenated dithiine (C4H4(SO2)2). Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.04.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pseudo Jahn-Teller origin of instability of planar configurations of hexa-heterocycles. Application to compounds with 1,2- and 1,4-C4X2 skeletons (X = O, S, Se, Te). Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.02.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ilkhani AR, Gorinchoy NN, Bersuker IB. Pseudo Jahn–Teller effect in distortion and restoration of planar configurations of tetra-heterocyclic 1,2-diazetes C2N2E4, E = H, F, Cl, Br. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2015.07.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ilkhani AR. Pseudo Jahn–Teller origin of twisting in 3,6-pyridazinedione derivatives; N2C4H2Y2Z2 (Y = O, S, Se, Z = H, F, Cl, Br) compounds. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633615500455] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
3,6-pyridazinedione and two of its derivatives where oxygen atoms of the molecule are substituted by two sulfur or selenium ( N 2 C 4 Y 2 H 4) were studied with the goal of answering the following question: "Which N 2 C 4 Y 2 H 4 compounds are unstable in their planar configuration?" Additionally, the origin of the twisting instability of 3,6-pyridazinedione planar configuration and three of its 1,2-dihalo derivatives ( N 2 C 4 H 2 O 2 Z 2) were rationalized by employing the pseudo Jahn–Teller effect (PJTE) to explain the difference between N 2 C 4 H 2 O 2 Z 2 structures in series. Therefore, the structures of six 3,6-pyridazinediones ( N 2 C 4 H 2 Y 2 Z 2) were optimized in both equilibrium and planar configurations, and their vibrational frequencies were calculated. Then the adiabatic potential energy surface (APES) profiles along the a2 distortion coordinates were calculated. Based on the calculation results, N 2 C 4 S 2 H 4 and N 2 C 4 Se 2 H 4 compounds were stable in the planar structure; but, due to the vibronic coupling interaction between the 1A1 ground state and the first excited state 1A2, the twisting instability occurred in planar N 2 C 4 H 2 O 2 Z 2 series. The (1 A 1 + 1 A 2) ⊗ a2 problem was found to be the reason of the breaking symmetry phenomena in all the four N 2 C 4 H 2 O 2 Z 2 in series from unstable planar configuration (highest-symmetry C 2v ) to the stable twisted geometry with C 2 symmetry. Finally, the vibronic coupling constants of the PJTE of the compounds in series were estimated by fitting the secular equation roots along the normal coordinates of distortion.
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Affiliation(s)
- Ali Reza Ilkhani
- Department of Chemistry Yazd Branch, Islamic Azad University, Yazd, Iran
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Hermoso W, Ilkhani AR, Bersuker IB. Pseudo Jahn–Teller origin of instability of planar configurations of hexa-heterocycles C4N2H4X2 (X = H, F, Cl, Br). COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.10.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Soto JR, Molina B, Castro JJ. Nonadiabatic structure instability of planar hexagonal gold cluster cation Au7 and its spectral signature. RSC Adv 2014. [DOI: 10.1039/c3ra46463f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Mullinax JW, Hollman DS, Schaefer HF. Tetragermacyclobutadiene: energetically disfavored with respect to its structural isomers. Chemistry 2013; 19:7487-95. [PMID: 23576110 DOI: 10.1002/chem.201203481] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Indexed: 11/07/2022]
Abstract
Germanium has been a central feature in the renaissance of main-group inorganic chemistry. Herein, we present the stationary-point geometries of tetragermacyclobutadiene and its related isomers on the singlet potential energy surface at the CCSD(T)/cc-pVTZ level of theory. Three of these 12 structures are reported for the first time and one of them is predicted to lie only 0.4 kcal mol(-1) above the previously reported global minimum. Focal-point analyses has provided electronic energies at the CCSD(T) level of theory, which are extrapolated to the complete basis-set limit and demonstrate the convergence behavior of the electronic energies with improving levels of theory and increasing basis-set size. The lowest-energy structure is the bicyclic structure, which lies 35 kcal mol(-1) below the "all-Ge" cyclobutadiene structure. The reaction energies for the association of known Ge hydrides (e.g., digermene) to form Ge4H4 indicate that Ge4H4 could be observed experimentally. We investigate the bonding patterns by examining the frontier molecular orbitals. Our results demonstrate that: 1) the cyclic isomers of (GeH)4 distort to maximize the mixing of the p orbitals that are involved in the π system of tetragermacyclobutadiene and 2) the lowest-energy isomers exhibit unusual bonding arrangements (e.g., bridging H bonds) that maximize the nonbonding electron density at the Ge centers.
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Affiliation(s)
- J Wayne Mullinax
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, USA
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Bersuker IB. Pseudo-Jahn–Teller Effect—A Two-State Paradigm in Formation, Deformation, and Transformation of Molecular Systems and Solids. Chem Rev 2013; 113:1351-90. [DOI: 10.1021/cr300279n] [Citation(s) in RCA: 353] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Isaac B. Bersuker
- Institute for Theoretical Chemistry, Department of Chemistry & Biochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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