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Yadav S, Bhunia S, Kumar R, Seth R, Singh A. Designing Excess Electron Compounds by Substituting Alkali Metals to a Small and Versatile Tetracyclic Framework: A Theoretical Perspective. ACS Omega 2023; 8:7978-7988. [PMID: 36872966 PMCID: PMC9979228 DOI: 10.1021/acsomega.2c07743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Organic compound-based nonlinear optical (NLO) materials have sparked a lot of attention due to their multitude of applications and shorter optical response times than those of inorganic NLO materials. In the present investigation, we designed exo-exo-tetracyclo[6.2.1.13,6.02,7]dodecane (TCD) derivatives, which were obtained by replacing H atoms of methylene bridge carbon with alkali metals (Li, Na, and K). It was observed that upon the substitution of alkali metals at bridging CH2 carbon, absorption within the visible region occurred. Moving from 1 to 7 derivatives, the maximum absorption wavelength of the complexes exhibited a red shift. The designed molecules showed a high degree of intramolecular charge transfer (ICT) and excess electrons in nature, which were responsible for rapid optical response time and significant large molecular (hyper)polarizability. Calculated trends also inferred that the crucial transition energy decreased in order that also played a key role in the higher nonlinear optical response. Furthermore, to examine the effect of the structure/property relationship on the nonlinear optical properties of these investigated compounds (1-7), we calculated the density of state (DOS), transition density matrix (TDM), and frontier molecular orbitals (FMOs). The largest first static hyperpolarizability (βtot) of TCD derivative 7 was 72059 au, which was 43 times greater than that of the prototype p-nitroaniline (βtot = 1675 au).
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Affiliation(s)
- Santosh
Kumar Yadav
- Department
of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical
Sciences for Study and Research, V.B.S.
Purvanchal University, Jaunpur 222003, India
| | - Snehasis Bhunia
- Department
of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan (R.O.C.)
| | - Rajneesh Kumar
- Department
of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical
Sciences for Study and Research, V.B.S.
Purvanchal University, Jaunpur 222003, India
| | - Ritu Seth
- Department
of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical
Sciences for Study and Research, V.B.S.
Purvanchal University, Jaunpur 222003, India
| | - Ajeet Singh
- Department
of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical
Sciences for Study and Research, V.B.S.
Purvanchal University, Jaunpur 222003, India
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2
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Affiliation(s)
- Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Qiuying Du
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Vijay Kumar
- Center for Informatics, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar 201314, U. P., India
- Dr. Vijay Kumar Foundation, 1969 Sector 4, Gurgaon 122001, Haryana, India
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3
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Nariyangadu SB, Choedak T, Malar EJP, Chen J, Thyrhaug E, Kumar P, Zhou J, Yechuri V, Pal SK, Lidin S, Thangadhorai KN, Karki KJ, Pullerits T. New Nonlinear Optical Crystal of Rhodamine 590 Acid Phthalate. ACS Omega 2020; 5:20863-20873. [PMID: 32875221 PMCID: PMC7450614 DOI: 10.1021/acsomega.0c02303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
The synthesis and crystal structure of rhodamine 590 acid phthalate (RhAP) have been reported. This novel solid-state rhodamine derivative not only has a longer fluorescence lifetime compared to rhodamine solid-state matrixes where emission is quenched but also possesses strong nonlinear optical characteristics. The static and dynamic first- and second-order hyperpolarizabilities were calculated using the time-dependent density functional theory at the B3LYP/6-31+G* level. The computed static values of β and γ of RhAP by the X-ray diffraction (XRD) structure were 31.9 × 10-30 and 199.0 × 10-36 esu, respectively. These values were about 62 times larger than the corresponding values in urea, an already well-known nonlinear optical material. The second-order hyperpolarizability of the compound was determined experimentally by measuring the two-photon absorption cross section using intensity-modulated light fields. The reported compound, excitable at near-infrared, exhibited frequency upconversion with the two-photon absorption coefficient enhanced by two orders of magnitude compared to that of the dye solution. Hosting the dye in the solid, at high concentrations, exploits the nonlinearity of the dye itself as well as results in significant excitonic effects including formation of broad exciton band and superradiance.
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Affiliation(s)
- Sesha Bamini Nariyangadu
- Chemical
Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
- National
Centre for Ultrafast Processes, University
of Madras, Chennai 600113, India
| | - Tenzin Choedak
- National
Centre for Ultrafast Processes, University
of Madras, Chennai 600113, India
| | | | - Junsheng Chen
- Chemical
Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
- Nano-Science
Center & Department of Chemistry, University
of Copenhagen, 1165 København, Denmark
| | - Erling Thyrhaug
- Chemical
Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
| | - Pushpendra Kumar
- Chemical
Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
- School
of Basic Sciences, Indian Institute of Technology, Mandi 175005, India
| | - Jinming Zhou
- Department
of Production and Materials Engineering, Lund University, 22100 Lund, Sweden
| | | | - Suman Kalyan Pal
- School
of Basic Sciences, Indian Institute of Technology, Mandi 175005, India
| | - Sven Lidin
- Division
of Polymer and Materials Chemistry, Lund
University, 22100 Lund, Sweden
| | | | - Khadga J. Karki
- Chemical
Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
| | - Tönu Pullerits
- Chemical
Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
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Yadav SB, Erande Y, Sreenath MC, Chitrambalam S, Joe IH, Sekar N. Pyrene Based NLOphoric D‐π‐A‐π‐D Coumarin‐Chalcone and Their Red Emitting OBO Difluoride Complex: Synthesis, Solvatochromism, Z‐scan, and Detailed TD‐DFT Studies. ChemistrySelect 2019. [DOI: 10.1002/slct.201901948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Sagar B. Yadav
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai India
| | - Yogesh Erande
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai India
| | - Mavila C. Sreenath
- Centre for Molecular and Biophysics ResearchDepartment of PhysicsMar Ivanios College, Thiruananthapuram Kerala 695015. India
| | - Subramaniyan Chitrambalam
- Centre for Molecular and Biophysics ResearchDepartment of PhysicsMar Ivanios College, Thiruananthapuram Kerala 695015. India
| | - Isaac H. Joe
- Centre for Molecular and Biophysics ResearchDepartment of PhysicsMar Ivanios College, Thiruananthapuram Kerala 695015. India
| | - Nagaiyan Sekar
- Department of Dyestuff TechnologyInstitute of Chemical Technology Matunga, Mumbai India
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Beaujean P, Champagne B. Coupled cluster investigation of the vibrational and electronic second and third harmonic scattering hyperpolarizabilities of the water molecule. J Chem Phys 2019. [DOI: 10.1063/1.5110375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Pierre Beaujean
- Laboratory of Theoretical Chemistry, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, Rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Benoît Champagne
- Laboratory of Theoretical Chemistry, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, Rue de Bruxelles 61, B-5000 Namur, Belgium
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Affiliation(s)
- Debdutta Chakraborty
- Department of Chemistry and Centre for Theoretical Studies, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Pratim Kumar Chattaraj
- Department of Chemistry and Centre for Theoretical Studies, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Sekar N, Katariya S, Rhyman L, Alswaidan IA, Ramasami P. Molecular and NLO Properties of Red Fluorescent Coumarins - DFT Computations Using Long-Range Separated and Conventional Functionals. J Fluoresc 2019; 29:241-53. [PMID: 30554293 DOI: 10.1007/s10895-018-2333-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/10/2018] [Indexed: 10/27/2022]
Abstract
Comparative study of nonlinear optical properties of red fluorescent coumarins was carried out with density functional theory based ab initio method using the popular global hybrid (GH) and range separated hybrid (RSH) functionals and correlated with the spectroscopic values. The GHs - M06 L, PBE1PBE, M06, BHHLYP, M062X and M06HF and RSHs - HISSbPBE, wB97, wB97X, HSEH1PBE, CAM-B3LYP and wB97XD in combination with the double zeta basis function 6-311 + G(d,p) were used. The computed polarizability (α0), hyperpolarizability of the first order (β0) and second order (γ) computed by the RSHs are closer to the spectroscopic values compared to GHs. Polarizabilities computed with the functionals BHHLYP and M06-2X are closer with the spectroscopic values. Incorporation of additional cyano group enhances the NLO response. An increase in electrophilic nature contributed from the reduced orbital band gap culminating an increase in α0, β0, and γ in all the cases. The NLO response was found to be highly solvent dependent that is the polarity of the micro environment created by the solvents. To understand the agreement and accuracy among the NLO parameters obtained from the selected DFT functionals and the spectroscopic values, the mean absolute error (MAE) and vibrational contribution parameters are presented. Two photon absorption (TPA) cross section depends upon the molecular structure where π-framework is an important factor rather than number of acceptors.
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Wang L, Ye JT, Chen H, Chen ZZ, Qiu YQ, Xie HM. A structure-property interplay between the width and height of cages and the static third order nonlinear optical responses for fullerenes: applying gamma density analysis. Phys Chem Chem Phys 2018; 19:2322-2331. [PMID: 28054686 DOI: 10.1039/c6cp06651h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To reveal a new structure-property relationship regarding the nonlinear optical (NLO) properties of fullerenes that are associated with gamma (γ) density, fullerenes I (C40, C50, C60 and C70), whose heights range from 4.83 to 7.96 Å, and II (C24, C36, C48 and C72), whose widths range from 4.45 to 8.22 Å, have been the research objects. Calculation of their geometric and electronic structures, absorption spectra, and the second hyperpolarizability (γ) and the γ density analysis have been performed. It is found that the electronic spatial extent and the polarizability (α) value increase linearly as the fullerenes increase by every 12 carbon atoms. Similarly, the γ values are also proportional to the fullerene size. It is worth noting that the relative magnitude of γxxxx and γzzzz was exactly consistent with that of the width and height of fullerenes. The analysis of γ density provides the essential reason for this result, that is, the magnitude of the contribution to γ values associated with γ densities is proportional to the density amplitudes multiplied by the distance between them. Larger fullerenes possess larger density amplitudes and longer distances, resulting in larger γ values with respect to smaller fullerenes. This work presents a new structure-property interplay between the width and height of the fullerenes and their second hyperpolarizability γ. Moreover, the γ density analysis provides a new insight to explore the nature of the relationship between the structure and the NLO properties.
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Affiliation(s)
- Li Wang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
| | - Jin-Ting Ye
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
| | - He Chen
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
| | - Zhen-Zhen Chen
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
| | - Yong-Qing Qiu
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China. and National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People's Republic of China
| | - Hai-Ming Xie
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China. and National & Local United Engineering Laboratory for Power Battery, Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People's Republic of China
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9
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Katariya SB, Patil D, Rhyman L, Alswaidan IA, Ramasami P, Sekar N. Triphenylamine-based fluorescent NLO phores with ICT characteristics: Solvatochromic and theoretical study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Erande Y, Warde U, Sekar N. Investigation of NLO Properties of Fluorescent BORICO Dyes: a Comprehensive Experimental and Theoretical Approach. J Fluoresc 2017; 27:2253-62. [PMID: 28831643 DOI: 10.1007/s10895-017-2167-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 08/10/2017] [Indexed: 10/19/2022]
Abstract
BORICO dyes with N, N-diethyl as a strong donor and BF2 complexed iminocoumarin six member core as strong acceptor are investigated as an efficient non linear optical chromophores. Extended π-conjugation over iminocoumarin moiety is useful to make ICT character of BORICO dyes more significant and is established on the scale of Generalised Mulliken Hush analysis scale. Bond length alternation and bond order alternation values for three BORICO chromophores estimates the cyanine like framework for optimal non linear optical response. The frontier molecular orbital diagrams obtained from density functional theory calculations shows that there is charge transfer from donor to accepter as well as effective overlap between them making the basis for optimal NLO response of BORICO chromophores. The theoretical values of linear and non linear optical responses for three BORICO NLOphores obtained by using three different functionals B3LYP, CAMB3LYP and BHandHLYP with 6-311+g(d,p) basis set are quite consistent for the values of static dipole moment (μ), linear polarizability (α) and first hyperpolarizability (β). However in case of the γ values calculation, compare to the similar values obtained by CAMB3LYP and BHandHLYP functionals, B3LYP overestimates the same. The vibrational motions play decisive role in the overall non linear optical properties of BORICO chromophores.
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Chakraborty D, Das R, Chattaraj PK. Change in optoelectronic properties of ExBox+4 on functionalization and guest encapsulation. Phys Chem Chem Phys 2017; 19:23373-23385. [DOI: 10.1039/c7cp02433a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
High non-linear optical properties could be derived from the ExBox+4 moiety due to functionalization as well as suitable guest encapsulation.
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Affiliation(s)
- Debdutta Chakraborty
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Ranjita Das
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Pratim Kumar Chattaraj
- Department of Chemistry and Centre for Theoretical Studies
- Indian Institute of Technology
- Kharagpur 721302
- India
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Adjizian JJ, Vlandas A, Rio J, Charlier JC, Ewels CP. Ab initio infrared vibrational modes for neutral and charged small fullerenes (C20, C24, C26, C28, C30 and C60). Philos Trans A Math Phys Eng Sci 2016; 374:rsta.2015.0323. [PMID: 27501975 PMCID: PMC4978747 DOI: 10.1098/rsta.2015.0323] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/05/2016] [Indexed: 06/06/2023]
Abstract
We calculate the infrared (IR) absorption spectra using DFT B3LYP(6-311G) for a range of small closed-cage fullerenes, Cn, n=20, 24, 26, 28, 30 and 60, in both neutral and multiple positive and negative charge states. The results are of use, notably, for direct comparison with observed IR absorption in the interstellar medium. Frequencies fall typically into two ranges, with C-C stretch modes around 1100-1500 cm(-1) (6.7-9.1 μm) and fullerene-specific radial motion associated with under-coordinated carbon at pentagonal sites in the range 600-800 cm(-1) (12.5-16.7 μm). Notably, negatively charged fullerenes show significantly stronger absorption intensities than neutral species. The results suggest that small cage fullerenes, and notably metallic endofullerenes, may be responsible for many of the unassigned interstellar IR spectral lines.This article is part of the themed issue 'Fullerenes: past, present and future, celebrating the 30th anniversary of Buckminster Fullerene'.
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Affiliation(s)
- Jean-Joseph Adjizian
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin des Étoiles 8, 1348 Louvain-la-Neuve, Belgium
| | - Alexis Vlandas
- BioMEMS, Université Lille, CNRS, ISEN, UMR 8520-IEMN, 59000 Lille, France
| | - Jeremy Rio
- Institut des Materiaux Jean Rouxel, CNRS, University of Nantes, UMR6502, 2 Rue de la Houssiniere, BP32229, 44322 Nantes Cedex 3, France
| | - Jean-Christophe Charlier
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Chemin des Étoiles 8, 1348 Louvain-la-Neuve, Belgium
| | - Chris P Ewels
- Institut des Materiaux Jean Rouxel, CNRS, University of Nantes, UMR6502, 2 Rue de la Houssiniere, BP32229, 44322 Nantes Cedex 3, France
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Li X, Ren H, Yang X, Song J. Exploring the chemical bonding, infrared and UV-vis absorption spectra of OH radicals adsorption on the smallest fullerene. Spectrochim Acta A Mol Biomol Spectrosc 2015; 144:258-265. [PMID: 25766372 DOI: 10.1016/j.saa.2015.02.095] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/10/2015] [Accepted: 02/19/2015] [Indexed: 06/04/2023]
Abstract
In the present work, the density-functional theory calculations were performed on C20 hydroxylated fullerene. B3LYP functionals with 6-31G(d,p) basis set were utilized to gain insight into the bonding characters and intramolecular interactions of hydroxyl groups adsorbed on the cage. Interestingly, we observed that the C20 cage has the bonding patterns with spherical orbitals configuration [1S(2)1P(6)1D(10)1F(2)], and the adsorbed hydroxyl groups significantly affect the chemical bonding of the cage surface. Analysis of vertical electron affinities and vertical ionization potentials indicates that the polyhydroxylated derivative with eight hydroxyl groups is more stable than others. The intramolecular interaction of these derivatives considered here reveals that the more the hydroxyl groups in derivatives, the stronger the interaction in stabilizing structures. On the basis of theoretical studies, the hydroxyl groups largely enhance the infrared intensities, especially for the polyhydroxylated derivatives.
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Affiliation(s)
- Xiaojun Li
- The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemistry and Chemical Engineering, Xi'an University, Xi'an 710065, Shaanxi Province, PR China.
| | - Hongjiang Ren
- The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemistry and Chemical Engineering, Xi'an University, Xi'an 710065, Shaanxi Province, PR China.
| | - Xiaohui Yang
- The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemistry and Chemical Engineering, Xi'an University, Xi'an 710065, Shaanxi Province, PR China.
| | - Jing Song
- The Key Laboratory for Surface Engineering and Remanufacturing in Shaanxi Province, School of Chemistry and Chemical Engineering, Xi'an University, Xi'an 710065, Shaanxi Province, PR China
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Vacek J, Chocholoušová JV, Stará IG, Starý I, Dubi Y. Mechanical tuning of conductance and thermopower in helicene molecular junctions. Nanoscale 2015; 7:8793-8802. [PMID: 25905658 DOI: 10.1039/c5nr01297j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Helicenes are inherently chiral polyaromatic molecules composed of all-ortho fused benzene rings possessing a spring-like structure. Here, using a combination of density functional theory and tight-binding calculations, it is demonstrated that controlling the length of the helicene molecule by mechanically stretching or compressing the molecular junction can dramatically change the electronic properties of the helicene, leading to a tunable switching behavior of the conductance and thermopower of the junction with on/off ratios of several orders of magnitude. Furthermore, control over the helicene length and number of rings is shown to lead to more than an order of magnitude increase in the thermopower and thermoelectric figure-of-merit over typical molecular junctions, presenting new possibilities of making efficient thermoelectric molecular devices. The physical origin of the strong dependence of the transport properties of the junction is investigated, and found to be related to a shift in the position of the molecular orbitals.
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Affiliation(s)
- Jaroslav Vacek
- Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 16610 Prague 6, Czech Republic.
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Nagy PR, Surján PR, Szabados Á. Vibrational optical activity of chiral carbon nanoclusters treated by a generalized π-electron method. J Chem Phys 2014; 140:044112. [DOI: 10.1063/1.4862682] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Abstract
The review summarizes data on dipole polarizability of fullerenes and their derivatives, covering the most widespread classes of fullerene-containing molecules (fullerenes, fullerene exohedral derivatives, fullerene dimers, endofullerenes, fullerene ions, and derivatives with ionic bonds).
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Affiliation(s)
- Denis Sh. Sabirov
- Institute of Petrochemistry and Catalysis
- Russian Academy of Sciences
- 450075 Ufa, Russia
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18
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Kozłowska J, Zaleśny R, Bartkowiak W. On the nonlinear electrical properties of molecules in confined spaces – From cylindrical harmonic potential to carbon nanotube cages. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2013.10.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reis H, Luis JM, Garcia−Borràs M, Kirtman B. Computation of Nonlinear Optical Properties of Molecules with Large Amplitude Anharmonic Motions. III. Arbitrary Double-Well Potentials. J Chem Theory Comput 2013; 10:236-42. [DOI: 10.1021/ct400938a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H. Reis
- Institute
of Biology, Medicinal Chemistry and Biotechnology, The National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 11635 Athens, Greece
| | - J. M. Luis
- Institut de Química Computacional i Catàlisi (IQCC)
and Departament de Química, Universitat de Girona, Campus de
Montilivi, 17071 Girona, Catalonia, Spain
| | - M. Garcia−Borràs
- Institut de Química Computacional i Catàlisi (IQCC)
and Departament de Química, Universitat de Girona, Campus de
Montilivi, 17071 Girona, Catalonia, Spain
| | - B. Kirtman
- Department of Chemistry
and Biochemistry, University of California, Santa Barbara, California 93106, United States of America
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Zaleśny R, Góra RW, Kozłowska J, Luis JM, Ågren H, Bartkowiak W. Resonant and Nonresonant Hyperpolarizabilities of Spatially Confined Molecules: A Case Study of Cyanoacetylene. J Chem Theory Comput 2013; 9:3463-72. [DOI: 10.1021/ct400410m] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Robert Zaleśny
- Theoretical Chemistry Group, Institute of Physical and Theoretical
Chemistry, Wroclaw University of Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
| | - Robert W. Góra
- Theoretical Chemistry Group, Institute of Physical and Theoretical
Chemistry, Wroclaw University of Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
| | - Justyna Kozłowska
- Theoretical Chemistry Group, Institute of Physical and Theoretical
Chemistry, Wroclaw University of Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
| | - Josep M. Luis
- Institut de Química Computacional
i Catàlisi and Departament de Química, Universitat de Girona, E−17071 Girona, Catalonia,
Spain
| | - Hans Ågren
- Department of Theoretical
Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE−10691 Stockholm,
Sweden
| | - Wojciech Bartkowiak
- Theoretical Chemistry Group, Institute of Physical and Theoretical
Chemistry, Wroclaw University of Technology, Wyb. Wyspiańskiego 27, PL−50370 Wrocław, Poland
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21
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Li J, Jia X, Li D, Ren J, Han Y, Xia Y, Wang E. Stem-directed growth of highly fluorescent silver nanoclusters for versatile logic devices. Nanoscale 2013; 5:6131-6138. [PMID: 23728712 DOI: 10.1039/c3nr00998j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This work described for the first time the stem-directed growth of silver nanoclusters (AgNCs) with high brightness using the well-chosen hairpin DNA structure. In comparison with the corresponding double-stranded (ds) DNA capped AgNCs, the fluorescence emission of hairpin DNA structure templated AgNCs were lighted up with 12.5-fold enhancement fluorescent intensity by sequence modification with T-loop. It provided a new prospect for precise placement of nanoscale optical elements onto DNA scaffolds. And these DNA protected AgNCs exhibited the base sequence, strand length and microenvironment-dependent fluorescent properties. Benefiting from these properties, versatile logic gates (or, not, inhibit, XNOR, implication) were constructed using different ions as inputs with AgNCs as signal transducer.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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Torrent-Sucarrat M, Anglada JM, Luis JM. Evaluation of the nonlinear optical properties for an expanded porphyrin Hückel-Möbius aromaticity switch. J Chem Phys 2012; 137:184306. [DOI: 10.1063/1.4765667] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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23
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Garcia-Borràs M, Solà M, Lauvergnat D, Reis H, Luis JM, Kirtman B. A Full Dimensionality Approach to Evaluate the Nonlinear Optical Properties of Molecules with Large Amplitude Anharmonic Tunneling Motions. J Chem Theory Comput 2012; 9:520-32. [DOI: 10.1021/ct300805p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marc Garcia-Borràs
- Institut de Química Computacional
and Departament de Química, Universitat de Girona, Campus Montilivi,
17071 Girona, Catalonia, Spain
| | - Miquel Solà
- Institut de Química Computacional
and Departament de Química, Universitat de Girona, Campus Montilivi,
17071 Girona, Catalonia, Spain
| | - David Lauvergnat
- Laboratoire de Chimie Physique,
CNRS, Bât. 349, UMR 8000, Orsay F-91405, France and Université
Paris-Sud, Orsay F-91405, France
| | - Heribert Reis
- Institute of Biology, Medicinal
Chemistry and Biotechnology, National Hellenic Research Foundation,
48 Vas. Constantinou Ave., Athens 116 35, Greece
| | - Josep M. Luis
- Institut de Química Computacional
and Departament de Química, Universitat de Girona, Campus Montilivi,
17071 Girona, Catalonia, Spain
| | - Bernard Kirtman
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California
93106, United States
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Góra RW, Zaleśny R, Kozłowska J, Naciążek P, Roztoczyńska A, Strasburger K, Bartkowiak W. Electric dipole (hyper)polarizabilities of spatially confined LiH molecule. J Chem Phys 2012; 137:094307. [PMID: 22957569 DOI: 10.1063/1.4748144] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this study we report on the electronic contributions to the linear and nonlinear static electronic electric dipole properties, namely the dipole moment (μ), the polarizability (α), and the first-hyperpolarizability (β), of spatially confined LiH molecule in its ground X (1)Σ(+) state. The finite-field technique is applied to estimate the corresponding energy and dipole moment derivatives with respect to external electric field. Various forms of confining potential, of either spherical or cylindrical symmetry, are included in the Hamiltonian in the form of one-electron operator. The computations are performed at several levels of approximation including the coupled-cluster methods as well as multi-configurational (full configuration interaction) and explicitly correlated Gaussian wavefunctions. The performance of Kohn-Sham density functional theory for the selected exchange-correlation functionals is also discussed. In general, the orbital compression effects lead to a substantial reduction in all the studied properties regardless of the symmetry of confining potential, however, the rate of this reduction varies depending on the type of applied potential. Only in the case of dipole moment under a cylindrical confinement a gradual increase of its magnitude is observed.
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Affiliation(s)
- Robert W Góra
- Theoretical Chemistry Group, Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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Garcia-Borràs M, Solà M, Luis JM, Kirtman B. Electronic and Vibrational Nonlinear Optical Properties of Five Representative Electrides. J Chem Theory Comput 2012; 8:2688-97. [DOI: 10.1021/ct300433q] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marc Garcia-Borràs
- Institut de
Química Computacional
and Departament de Química, Universitat de Girona, Campus Montilivi,
17071 Girona, Catalonia, Spain
| | - Miquel Solà
- Institut de
Química Computacional
and Departament de Química, Universitat de Girona, Campus Montilivi,
17071 Girona, Catalonia, Spain
| | - Josep M. Luis
- Institut de
Química Computacional
and Departament de Química, Universitat de Girona, Campus Montilivi,
17071 Girona, Catalonia, Spain
| | - Bernard Kirtman
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California
93106, United States
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26
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Xu L, Tang H, Li C, Li F, Li X, Tao S. Structures, electronic properties, and nonlinear optical properties of Ce/Dy-encapsulated C20-glycine: a density-functional theory investigation. Struct Chem 2012. [DOI: 10.1007/s11224-012-0098-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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