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Huang J, Wang YF, Yang K, Zhang W, Wang ZJ, Liu X, Li ZR. Superalkali-alkaline earthide ion pairs of δ+(AM-HMHC)-AM' δ- (AM = Li, Na and K; AM' = Be, Mg and Ca) possessing large NLO responses and excellent electronic stabilities and alkalide characteristics: a DFT study. Phys Chem Chem Phys 2024; 26:4702-4715. [PMID: 38251937 DOI: 10.1039/d3cp04627c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
To identify superalkali-alkaline earthide ion pairs, it's theoretically shown that, as a novel class of excess electron superalkali compounds, both chair and boat forms of (AM-HMHC)-AM' (AM = Li, Na, and K; AM' = Be, Mg, and Ca; HMHC = 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16-hexaazacyclooctadecane) are good candidates. An attractive superalkali-alkaline earthide ion pair in δ+(AM-HMHC)-AM'δ- is firstly exhibited, which possesses alkaline-earthide characteristics and nonlinear optical response superior to similar M+(calix[4]pyrrole)M'- (M = Li, Na, and K; M' = Be, Mg, and Ca) with high stability. The electronic and vibrational second order hyperpolarizabilities and the frequency-dependent first hyperpolarizabilities of δ+(AM-HMHC)-AM'δ- are presented. For each pair of (AM-HMHC)-AM', the boat conformation is preferred to its chair one in the case of Hyper-Rayleigh scattering response (βHRS). These alkaline earthides suggest prominently high βHRS up to 2.59 × 104 a.u. (boat forms of δ+(Na-HMHC)-Caδ-). We expect that this work will inspire the preparation and characterization of these new alkaline earthides as high-performance NLO materials.
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Affiliation(s)
- Jiangen Huang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering. Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Yin-Feng Wang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering. Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Kai Yang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering. Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Wen Zhang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering. Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Zhi-Jun Wang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering. Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Xuexia Liu
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui, P. R. China.
| | - Zhi-Ru Li
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
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Zeng JM, Liu Q, Zhao JY, Deng R, Wang YF, Huang J, Li ZR. OEEF-Driven Intramolecular Self-Redox of Superalkali Rb 3BeB 6Be'Rb' 3: A High-Performance Candidate for NLO Molecular Switch. ACS OMEGA 2023; 8:30612-30620. [PMID: 37636977 PMCID: PMC10448663 DOI: 10.1021/acsomega.3c04248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/24/2023] [Indexed: 08/29/2023]
Abstract
To provide a novel intramolecular self-redox switch, a boron-based sandwich-like complex Rb3BeB6Be'Rb'3 is achieved by using theoretical computations. An applicable oriented external electric field (OEEF) can result in the occurrence of intramolecular self-redox (IMSR) with a long-range electron transfer from tetrahedral Be'Rb'3 to Rb3Be and subsequently [Rb3Be]3+[B6]6-[Be'Rb'3]3+ (D3d) changes to [Rb3Be]2+[B6]6-[Be'Rb'3]4+ (C3v), accompanying high-performance NLO switchable effect for both static and dynamic first hyperpolarizability (β0). [Rb3Be]3+[B6]6-[Be'Rb'3]3+ (off-form) owns zero of dipole moment (μ0) and β0, while [Rb3Be]2+[B6]6-[Be'Rb'3]4+ (on-form) exhibits a μ0 of 3.36 D and a β0e of 2.18 × 105 au. The different dynamic first hyperpolarizabilities between [Rb3Be]3+[B6]6-[Be'Rb'3]3+ and [Rb3Be]2+[B6]6-[Be'Rb'3]4+ are also significant. This indicates that Rb3BeB6Be'Rb'3 is a potential candidate for an IMSR NLO switch.
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Affiliation(s)
- Jia-Mei Zeng
- Jiangxi
Province Key Laboratory of Coordination Chemistry, Institute of Applied
Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an CN 343009, China
| | - Qin Liu
- Jiangxi
Province Key Laboratory of Coordination Chemistry, Institute of Applied
Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an CN 343009, China
| | - Jing-Yi Zhao
- Jiangxi
Province Key Laboratory of Coordination Chemistry, Institute of Applied
Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an CN 343009, China
| | - Rui Deng
- Jiangxi
Province Key Laboratory of Coordination Chemistry, Institute of Applied
Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an CN 343009, China
| | - Yin-Feng Wang
- Jiangxi
Province Key Laboratory of Coordination Chemistry, Institute of Applied
Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an CN 343009, China
| | - Jiangen Huang
- Jiangxi
Province Key Laboratory of Coordination Chemistry, Institute of Applied
Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an CN 343009, China
| | - Zhi-Ru Li
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun CN 130023, China
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Ahsan A, Fayyaz F, Sarfaraz S, Hamid MHS, Keasberry NA, Ayub K, Sheikh NS. A three orders of magnitude increase in nonlinear optical response by external electric field on Cryptand[2.2.2] (C222) based alkaline earthides. Heliyon 2023; 9:e17610. [PMID: 37455946 PMCID: PMC10338364 DOI: 10.1016/j.heliyon.2023.e17610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/18/2023] Open
Abstract
A new series of alkaline earthides based on Cryptand [2.2.2] (C222) containing nine complexes is designed by carefully placing alkali metals and alkaline earth metals inside and outside the C222 complexant, respectively i.e., M1(C222)M2 (M1 = Li, Na, K; M2 = Be, Mg, Ca). The designed complexes are reasonably stable both electronically and thermodynamically, as revealed through their vertical ionization potentials (VIPs) and interaction energies, respectively. Moreover, the true alkaline earthide nature of the complexes is confirmed through NBO and FMO analyses showing the negative charges and HOMOs over the alkaline earth metals, respectively. The further validity of true earthide characteristic is represented graphically by the spectra of partial density of states (PDOS). HOMO-LUMO gaps of the compounds are also very small (from 2.23 to 2.83 eV) when compared with pure cage's (C222) H-L gap i.e., 5.63 eV. All these features award these complexes with very small values of transition energies (ΔE) ranging from 0.68 to 2.06 eV ultimately resulting in remarkably high hyperpolarizability values up to 2.7 × 105 au (for Na+(C222)Mg-). Furthermore, applying external electric field (EEF) on the complexes enhances hyperpolarizability further. A remarkable increase of 1000 folds has been seen when hyperpolarizability of K+(C222)Ca- is calculated after EEF application i.e., from 8.79 × 104 au to 2.48 × 107 au; when subjected to 0.001 au external electric field.
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Affiliation(s)
- Annum Ahsan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| | - Faiza Fayyaz
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| | - Sehrish Sarfaraz
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| | - Malai Haniti S.A. Hamid
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Natasha A. Keasberry
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| | - Nadeem S. Sheikh
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam
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Geometric, Electronic, and Optoelectronic Properties of Carbon-Based Polynuclear C 3O[C(CN) 2] 2M 3 (where M = Li, Na, and K) Clusters: A DFT Study. Molecules 2023; 28:molecules28041827. [PMID: 36838816 PMCID: PMC9965956 DOI: 10.3390/molecules28041827] [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: 12/31/2022] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/17/2023] Open
Abstract
Carbon-based polynuclear clusters are designed and investigated for geometric, electronic, and nonlinear optical (NLO) properties at the CAM-B3LYP/6-311++G(d,p) level of theory. Significant binding energies per atom (ranging from -162.4 to -160.0 kcal mol-1) indicate excellent thermodynamic stabilities of these polynuclear clusters. The frontier molecular orbital (FMOs) analysis indicates excess electron nature of the clusters with low ionization potential, suggesting that they are alkali-like. The decreased energy gaps (EH-L) with increased alkali metals size revael the improved electrical conductivity (σ). The total density of state (TDOS) study reveals the alkali metals' size-dependent electronic and conductive properties. The significant first and second hyperpolarizabilities are observed up to 5.78 × 103 and 5.55 × 106 au, respectively. The βo response shows dependence on the size of alkali metals. Furthermore, the absorption study shows transparency of these clusters in the deep-UV, and absorptions are observed at longer wavelengths (redshifted). The optical gaps from TD-DFT are considerably smaller than those of HOMO-LUMO gaps. The significant scattering hyperpolarizability (βHRS) value (1.62 × 104) is calculated for the C3 cluster, where octupolar contribution to βHRS is 92%. The dynamic first hyperpolarizability β(ω) is more pronounced for the EOPE effect at 532 nm, whereas SHG has notable values for second hyperpolarizability γ(ω).
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Yi XG, Wang YF, Zhang HR, Cai JH, Liu XX, Li J, Wang ZJ, Bai FQ, Li ZR. Can a molecular switch exist in both superalkali electride and superalkalide forms? Phys Chem Chem Phys 2022; 24:5690-5699. [PMID: 35187550 DOI: 10.1039/d1cp05657c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
To combine both electride and alkalide characteristics in one molecular switch, it is shown herein that the phenalenyl radical and the M3 ring (M3-PHY, M = Li, Na, and K) stacked with parallel and vertical geometries are good candidates. The former geometry is the superalkali electride e-⋯M3+-PHY while the latter geometry is the superalkalide Mδ--M2(1-δ)+-PHY-. The superalkalide Mδ--M2(1-δ)+-PHY- may isomerize to the superalkali electride e-⋯M3+-PHY (M = Li, Na, and K) using suitable long-wavelength irradiation, while the latter may isomerize to the former with suitable short-wavelength irradiation. Also, applying suitable oriented external electric fields can drive the superalkalide Mδ-M2(1-δ)+-PHY- to change into the superalkali electride e-⋯M3+-PHY (M = Li, Na, and K). The differences in the static and dynamic first hyperpolarizability (β0) values between them were also studied.
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Affiliation(s)
- Xiu-Guang Yi
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Yin-Feng Wang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Hua-Rong Zhang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, Zhejiang 311121, P. R. China.
| | - Jin-Hua Cai
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Xue-Xia Liu
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Jia Li
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Zhi-Jun Wang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Fu-Quan Bai
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Zhi-Ru Li
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
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Wang YF, Huang J, Wang ZJ, Liu XX, Li J, Li ZR. Superalkali-alkalide ion pairs δ+(M-HMHC)-M’ δ - (M, M’ = Li, Na and K) serving as high-performance NLO molecular materials. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118101] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bibi T, Jadoon T, Ayub K. Two state “ON–OFF” NLO switch based on coordination complexes of iron and cobalt containing isomeric ligand: a DFT study. RSC Adv 2022; 12:23204-23214. [PMID: 36090436 PMCID: PMC9380411 DOI: 10.1039/d2ra03867f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
Coordination complexes are interesting materials for nonlinear optical (NLO) applications due to their large hyperpolarizability values. Moreover, switchable NLO response is also important in coordination complexes. Herein, we report two state ON–OFF switchable NLO contrast of coordination complexes of Fe and Co containing isomeric ligands. The optical, UV-visible, and electronic properties besides the “ON–OFF” switching effect are calculated using the CAM-B3LYP/6-31+G (d) method. The NLO responses of ligand–metal isomers are qualitatively evaluated through variation in charge transference (CT) style through TD-DFT. The higher βo in each isomeric pair is strongly dependent on the HOMO–LUMO gap. The isomer 4b with lowest HOMO–LUMO gap shows the highest NLO response. The charge transfer pattern in these complexes results in variation of their βo values. The notable βo contrast of 21.15 in isomeric pairs 3a and 3b makes these complexes a favorable material for genuine NLO switches. Hence, the outcome of the current investigation reveals that these ligand–metal isomeric complexes exhibit a two-state switch “ON–OFF” effect. Coordination complexes are interesting materials for nonlinear optical (NLO) applications due to their large hyperpolarizability values.![]()
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Affiliation(s)
- Tamseela Bibi
- Department of Chemistry, COMSATS University Abbottabad Campus, 22060, Pakistan
| | - Tabish Jadoon
- Department of Chemistry, COMSATS University Abbottabad Campus, 22060, Pakistan
- Department of Chemistry, GPGC No. 1 Abbottabad, KPK, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Abbottabad Campus, 22060, Pakistan
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Bardak F, Bardak C, Karaca C, Kose E, Bilgili S, Atac A. Anionic dependency of electronic and nonlinear optical properties of ionic liquids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117030] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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9
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Oxacarbon superalkali C3X3Y3 (X = O, S and Y = Li, Na, K) clusters as excess electron compounds for remarkable static and dynamic NLO response. J Mol Graph Model 2021; 106:107922. [PMID: 33984815 DOI: 10.1016/j.jmgm.2021.107922] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 02/07/2023]
Abstract
An intriguing class of excess electron oxacarbon superalkali clusters is explored for nonlinear optical response through density functional theory (DFT) methods at CAM-B3LYP/6-311++G(d,p). These superalkali clusters shows noticeable binding energies per atom (Eb) which reveals their thermodynamic stabilities (-86.45 ∼ -119.44 kcal mol-1). The obtained significant VIPs values also suggest the electronic stability of these clusters. The VIP values range from 2.06 eV to 3.42 eV. These clusters show remarkable electronic properties and their HOMO-LUMO gaps (EH-L) are significantly reduced. The lowest H-L gap of 0.96 eV is obtained for C3O3K3 while the highest H-L gap of 2.07 eV is calculated for C3S3Li3. The obtained PDOS spectra further provide evidence for the superior electronic properties of these clusters. The clusters show excellent nonlinear optical properties as revealed from remarkable values (1.6 × 106 au) of static first hyperpolarizability. The controlling factors for hyperpolarizability are also explored by using conventional two-level model. The calculated values of βo are correlated nicely with βtl. The crucial excitation energy is the key factor in controlling the first hyperpolarizability. In these excess electron clusters, the second hyperpolarizability (γo) response increases up to 4.3 × 109 au. Moreover, the calculated scattering hyperpolarizability (βHRS) values are quite significant in these clusters and the highest value of 1.3 × 106 au is calculated for C3S3K3. Additionally, these clusters also possess larger dynamic nonlinearities. The dynamic second hyperpolarizability with dc-Kerr effect increases up to 1.0 × 1011 au. The remarkable values for refractive index (n2) also suggest the excellent nonlinearity of these superalkali clusters.
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Wang YF, Qin T, Wang JJ, Liu XX, Wang ZJ, Huang J, Li J, Li ZR. Switching from an electride-like molecule to the molecular electride K-F 6C 6H 6 driven by an oriented external electric field. Phys Chem Chem Phys 2021; 23:1443-1453. [PMID: 33398308 DOI: 10.1039/d0cp05878e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The exploration of innovative molecular switches has resulted in large developments in the field of molecular electronics. Focusing on a single molecular switch with different forms exhibiting different electride features, potassium-atom-doped all-cis 1,2,3,4,5,6-hexafluorocyclohexane K-F6C6H6 was studied theoretically. It was found that an oriented external electric field can drive excess electron transfer from the region outside of the K atom to that outside of F6C6H6. Subsequently, the electride-like molecule K-F6C6H6 (1) switches into the molecular electride K-F6C6H6e- (3) through another electride-like molecule K-F6C6H6 (2). The static first hyperpolarizabilities (β0) are increased over 12- and 5-fold when moving from 1 to 2 and 3, respectively. The rise of each β0 value constitutes an order of magnitude improvement. Between them, the different β0 values suggest that K-F6C6H6 is a good candidate for use as a multiple-response nonlinear optics switch. The order of the β0 values of 1-4 for M-F6C6H6 (M = Li and Na) coincide with that of K-F6C6H6, also exhibiting a switch effect.
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Affiliation(s)
- Yin-Feng Wang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Tian Qin
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Jia-Jun Wang
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun, Jilin 130103, P. R. China.
| | - Xue-Xia Liu
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Zhi-Jun Wang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Jiangen Huang
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Jia Li
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
| | - Zhi-Ru Li
- Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
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Alkaline earth metals serving as source of excess electron for alkaline earth metals to impart large second and third order nonlinear optical response; a DFT study. J Mol Graph Model 2020; 101:107759. [DOI: 10.1016/j.jmgm.2020.107759] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 11/20/2022]
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12
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Yi XG, Wang YF, Qin T, Liu XX, Jiang SL, Huang J, Yang K, Li J, Li ZR. Electric field induced intra-molecular self-redox: superalkali Li 3N 3Mg as a candidate for NLO molecular switches. Phys Chem Chem Phys 2020; 22:21928-21937. [PMID: 32970081 DOI: 10.1039/d0cp03113e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel intra-molecular self-redox switch, Li3N3Mg, is constructed theoretically. Our investigation showed that a suitably oriented external electric field (OEEF) can drive a long-range excess electron transfer from Mg atoms to Li3 rings. And subsequently, an interesting intra-molecular self-redox from Li32+N33-Mg+ to Li3+N33-Mg2+ accompanying the large different electronic static first hyperpolarizability (β) is exhibited. The increase of the β value constitutes an order of magnitude improvement from Li32+N33-Mg+ (34 986 a.u.) to Li3+N33-Mg2+ (101 225 a.u.), which indicates that Li3N3Mg is a good candidate for a self-redox NLO molecular switch.
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Affiliation(s)
- Xiu-Guang Yi
- Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P. R. China.
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Zhao Y, Chen J, Yang H, Wei Q, Cheng SB. A density functional theory calculation on the geometrical structures and electronic properties of Ag19 under the oriented external electric field. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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