1
|
Hussain J, Hussain R, Hussain A, Yawer MA, Arshad M, Alarfaji SS, Rauf A, Ayub K. Theoretical design of alkaline earthides M +(3 6 adz) Be - (M + = V, Cr, Mn, Fe, Co, Ni, Cu, and Zn) with excellent nonlinear optical response and ultraviolet transparency. J Mol Graph Model 2024; 130:108791. [PMID: 38776762 DOI: 10.1016/j.jmgm.2024.108791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/12/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
A novel series of alkaline earthides containing eight complexes based upon 36adz complexant are designed by placing carefully transition metals (V-Zn) on inner side and alkaline earth metal outer side of the complexant i.e., M+(36adz) Be- (M+ = V, Cr, Mn, Fe, Co, Ni, Cu and Zn). All the designed compounds are electronically and thermodynamically stable as evaluated by their interaction energy and vertical ionization potential respectively. Moreover, the true nature of alkaline earthides is verified through NBOs and FMO study, showing negative charge and excess electrons on alkaline earth metal respectively. Furthermore, true alkaline earthides characteristics are evaluated graphically by spectra of partial density state (PDOS). The energy gap (HOMO -LUMO gap) is very small (ranging 2.95 eV-1.89 eV), when it is compared with pure cage 36adz HOMO-LUMO gap i.e., 8.50 eV. All the complexes show a very small value of transition energy ranging from 1.68eV to 0.89eV. Also, these possess higher hyper polarizability values up to 2.8 x 105au (for Co+(36adz) Be-). Furthermore, an increase in hyper polarizability was observed by applying external electric field on complexes. The remarkable increase of 100fold in hyper polarizability of Zn+(36adz) Be- complex is determined after application of external electric field i.e., from 1.7 x 104 au to 1.7 x 106 au when complex is subjected to external electric field of 0.001 au strength. So, when external electric field is applied on complexes it enhances the charge transfer, polarizability and hyper polarizability of complexes and proves to be effective for designing of true alkaline earthides with remarkable NLO response.
Collapse
Affiliation(s)
- Jabir Hussain
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Riaz Hussain
- Department of Chemistry, Division of Science and Technology, University of Education Lahore, Pakistan.
| | - Ajaz Hussain
- Institute of Chemical Sciences Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Mirza Arfan Yawer
- Department of Chemistry, Division of Science and Technology, University of Education Lahore, Pakistan
| | - Muhammad Arshad
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Saleh S Alarfaji
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.
| | - Abdul Rauf
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, KPK, 22060, Pakistan
| |
Collapse
|
2
|
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.
Collapse
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.
| |
Collapse
|
3
|
Bekri L, Elhorri AM, Hedidi M, Zouaoui-Rabah M. Theoretical study of the Tetraaminelithium and Tetraaminesodium molecules complexed with H -, Li - and Na - anions: static and dynamic NLO parameters. J Mol Model 2023; 30:8. [PMID: 38091098 DOI: 10.1007/s00894-023-05801-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 12/01/2023] [Indexed: 01/11/2024]
Abstract
CONTEXT This work focuses on the study of six molecules composed of the TetraAmineLithium (TALi+) and TetraAmineSodium (TANa+) structures linked with the anions H-, Li- and Na-. The NLO results obtained by these calculations showed significant values of static first hyperpolarizabilities (βtot) ranging from 8.74 * 10-30 to 691.99 * 10-30 esu. The two molecules TALi-Li and TALi-Na gave the highest values of static βtot equal to 563.20 and 691.99 * 10-30 esu respectively and static second hyperpolarizabilities (γav) of 680.02 and 779.05 * 10-35 esu. The highest dynamic first hyperpolarizabilities (β||) values are around 1474080.00 * 10-30 esu and 6,145,080.00 * 10-30 esu at 720 nm lasers and which are attributed to the two molecules TANa-Li and TANa-Na respectively. Four molecules have push-pull behavior where the anions are donor groups, the Li+-NH3 and Na+-NH3 groups are acceptor groups and a bridge composed by the three remaining NH3 ligands. The maximum wavelengths (λmax) in vacuum and in the presence of solvents for all molecules are in the range 240 to 870 nm. METHOD The software used in this study is Gaussian 16. The optimizations of the molecules were calculated by B3LYP-D3/6-31 + + G(d,p). The static first hyperpolarizability (βtot) was calculated by different functionals: CAM-B3LYP, LC-wPBE, LC-BLYP, M11, wB97X, HSEh1PBE and M06-2X and the MP2 method, the basis-set used is 6-31 + + G(d,p). Other calculations of static βtot were carried out by the CAM-B3LYP functional combined with several basis-sets: 6-31G(d,p), 6-31 + + G(d,p), cc-pVDZ, AUG-cc- pVDZ, 6-311G(d,p), 6-311 + + G(d,p), cc-pVTZ and AUG-cc-pVTZ. The calculations of the first (β||) and second (γ||) hyperpolarizabilities in second harmonic generation (SHG) were calculated by CAM-B3LYP/6-31 + + G(d,p). The delocalization energies (E(2)) were determined by the NBO approach and calculated by the same functional and basis-set cited before. The solvation Gibbs energies (ΔGsolv) were calculated using the implicit SMD model. Maximum wavelengths (λmax) and oscillator strengths ([Formula: see text]) were calculated by TD-CAM-B3LYP/6-31 + + G(d,p) in the presence of the implicit CPCM model.
Collapse
Affiliation(s)
- Lahcène Bekri
- Department of Chemistry, Faculty of Exact Sciences, Mustapha Stambouli, University of Mascara, Av. Cheikh El Khaldi, 29000, Mascara, Algeria
| | - Abdelkader M Elhorri
- Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, Ouled Fares, P.O. Box 78C, 02180, Chlef, Algeria.
- Laboratory of Materials Chemistry Catalysis and Reactivity, Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, Ouled Fares, P.O. Box 78C, 02180, Chlef, Algeria.
| | - Madani Hedidi
- Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, Ouled Fares, P.O. Box 78C, 02180, Chlef, Algeria
- Laboratory of Materials Chemistry Catalysis and Reactivity, Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, Ouled Fares, P.O. Box 78C, 02180, Chlef, Algeria
| | - Mourad Zouaoui-Rabah
- Laboratory of Materials Chemistry Catalysis and Reactivity, Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, Ouled Fares, P.O. Box 78C, 02180, Chlef, Algeria
- Department of Preparatory Education in Science and Technology, National Polytechnic School of Oran Maurice Audin, Oran El M'naouer, Box B.P. 1523, Oran, Algeria
| |
Collapse
|
4
|
Kosar N, Wajid S, Ayub K, Gilani MA, Binti Zainal Arfan NH, Sheikh Abdul Hamid MH, Imran M, Sheikh NS, Mahmood T. Giant NLO response and deep ultraviolet transparency of dual (alkali/alkaline earth) metals doped C 6O 6Li 6 electrides. Heliyon 2023; 9:e18264. [PMID: 37533989 PMCID: PMC10391932 DOI: 10.1016/j.heliyon.2023.e18264] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 08/04/2023] Open
Abstract
The designing of new materials having outstanding nonlinear optical (NLO) response is much needed for use in latest optics. Herein, the geometric, electronic and NLO properties of alkali and alkaline earth metals doped C6O6Li6 (alk-C6O6Li6-alkearth, alkearth = Ca, Mg, Be and alk = K, Na, Li) electrides is studied via quantum chemical approach. The interaction energies (Eint) are examined to illustrate their thermodynamic stability. The strong interaction energy of -39.99 kcal mol-1 is observed for Ca-C6O6Li6-Li electride in comparison to others. Frontier molecular orbitals (FMOs) energy gap of considered complexes is changed due to the electronic density shifting between metals and C6O6Li6 surface, which notifies the semi conducting properties of these electrides. The FMOs isodensities and natural bond orbital (NBO) charge analysis are performed to justify charge transfer between dopants and complexant. UV-Visible study also confirmed the application of these electrides as deep ultra-violet laser devices. NLO response is studied through calculation of first hyperpolarizability (βo). The highest βo value of 1.68 × 105 au is calculated for Mg-C6O6Li6-K electride. NLO response is further rationalized by three- and two-level models approach.
Collapse
Affiliation(s)
- Naveen Kosar
- Department of Chemistry, University of Management and Technology (UMT), C-11, Johar Town Lahore, Pakistan
| | - Sunaina Wajid
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Mazhar Amjad Gilani
- Department of Chemistry, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Nur Hazimah Binti Zainal Arfan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam
| | | | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Nadeem S. Sheikh
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam
| | - Tariq Mahmood
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
- Department of Chemistry, College of Science, University of Bahrain, P.O. Box 32038, Bahrain
| |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Hameed S, Waqas M, Zahid S, Gul S, Shawky AM, Alatawi NS, Shehzad RA, Bhatti IA, Ayub K, Iqbal J, Khera RA. Quantum Chemical Approach of Hexaammine (NH 3) 6 complexant with alkali and alkaline earth metals for their potential use as NLO materials. J Mol Graph Model 2023; 123:108505. [PMID: 37220700 DOI: 10.1016/j.jmgm.2023.108505] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/07/2023] [Accepted: 04/30/2023] [Indexed: 05/25/2023]
Abstract
In this study, nine new electron rich compounds are presented, and their electronic, geometrical, and nonlinear optical (NLO) characteristics have been investigated by using the Density functional theory. The basic design principle of these compounds is placing alkaline earth metal (AEM) inside and alkali metal (AM) outside the hexaammine complexant. The properties of nine newly designed compounds are contrasted with the reference molecule (Hexaammine). The effect of this doping on Hexaamine complexant is explored by different analyses such as electron density distribution map (EDDM), frontier molecular orbitals (FMOs), density of states (DOS) absorption maximum (λmax), hyperpolarizabilities, dipole moment, transition density matrix (TDM). Non-covalent interaction (NCI) study assisted with isosurfaces has been accomplished to explore the vibrational frequencies and types of synergy. The doping of hexaammine complexant with AM and AEM significantly improved its characteristics by reducing values of HOMO-LUMO energy gaps from 10.7eV to 3.15eV compared to 10.7 eV of hexaammine. The polarizability and hyperpolarizability (αo and βo) values inquisitively increase from 72 to 919 au and 4.31 × 10-31 to 2.00 × 10-27esu respectively. The higher values of hyperpolarizability in comparison to hexaammine (taken as a reference molecule) are credited to the presence of additional electrons. The absorption profile of the newly designed molecules clearly illustrates that they are highly accompanied by higher λmax showing maximum absorbance in red and far-red regions ranging from 654.07 nm to 783.94 nm. These newly designed compounds have superior outcomes having effectiveness for using them as proficient NLO materials and have a gateway for advanced investigation of more stable and highly progressive NLO materials.
Collapse
Affiliation(s)
- Shanza Hameed
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Muhammad Waqas
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Saba Zahid
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Shehla Gul
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Ahmed M Shawky
- Science and Technology Unit (STU), Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Naifa S Alatawi
- Physics Department, Faculty of Science, University of Tabuk, Tabuk, 71421, Saudi Arabia
| | - Rao Aqil Shehzad
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Ijaz Ahmed Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
| | - Khurshid Ayub
- Department of Chemistry, COMSAT University, Abbottabad Campus, KPK, 22060, Pakistan
| | - Javed Iqbal
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
| | - Rasheed Ahmad Khera
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
| |
Collapse
|
7
|
Alkhalifah MA, Sheikh NS, Al-Faiyz YSS, Bayach I, Ludwig R, Ayub K. Rational Design, Stabilities and Nonlinear Optical Properties of Non-Conventional Transition Metalides; New Entry into Nonlinear Optical Materials. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093447. [PMID: 37176328 PMCID: PMC10180138 DOI: 10.3390/ma16093447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
Electronic and nonlinear optical properties of endohedral metallofullerenes are presented. The endohedral metallofullerenes contain transition metal encapsulated in inorganic fullerenes X12Y12 (X = B, Al & Y = N, P). The endohedral metallofullerenes (endo-TM@X12Y12) possess quite interesting geometric and electronic properties, which are the function of the nature of the atom and the size of fullerene. NBO charge and frontier molecular orbital analyses reveal that the transition metal encapsulated Al12N12 fullerenes (endo-TM@Al12N12) are true metalides when the transition metals are Ni, Cu and Zn. Endo-Cr@Al12N12 and endo-Co@Al12N12 are at the borderline between metalides and electrides with predominantly electride characteristics. The other members of the series are excess electron systems, which offer interesting electronic and nonlinear optical properties. The diversity of nature possessed by endo-TM@Al12N12 is not prevalent for other fullerenes. Endo-TM@Al12P12 are true metalides when the transition metals are (Cr-Zn). HOMO-LUMO gaps (EH-L) are reduced significantly for these endohedral metallofullerenes, with a maximum percent decrease in EH-L of up to 70%. Many complexes show odd-even oscillating behavior for EH-L and dipole moments. Odd electron species contain large dipole moments and small EH-L, whereas even electron systems have the opposite behavior. Despite the decrease in EH-L, these systems show high kinetic and thermodynamic stabilities. The encapsulation of transition metals is a highly exergonic process. These endo-TM@X12Y12 possess remarkable nonlinear optical response in which the first hyperpolarizability reaches up to 2.79 × 105 au for endo-V@Al12N12. This study helps in the comparative analysis of the potential nonlinear optical responses of electrides, metalides and other excess electron systems. In general, the potential nonlinear optical response of electrides is higher than metalides but lower than those of simple excess electron compounds. The higher non-linear optical response and interesting electronic characteristics of endo-TM@Al12N12 complexes may be promising contenders for potential NLO applications.
Collapse
Affiliation(s)
- Mohammed A Alkhalifah
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Nadeem S Sheikh
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
| | - Yasair S S Al-Faiyz
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Imene Bayach
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Ralf Ludwig
- University of Rostock, Institute of Chemistry, Physical and Theoretical Chemistry, Albert-Einstein-Straße 27, 18059 Rostock, Germany
- Department of Science and Technology of Life, Light and Matter, Faculty of Interdisciplinary Research, University of Rostock, 18059 Rostock, Germany
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, KPK, Pakistan
| |
Collapse
|
8
|
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] [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).
Collapse
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
| |
Collapse
|
9
|
Dong H, Feng Y, Bu Y. Electron Presolvation in Tetrahydrofuran-Incorporated Supramolecular Sodium Entities. J Phys Chem A 2023; 127:1402-1412. [PMID: 36748233 DOI: 10.1021/acs.jpca.2c06944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Alkali metal atoms can repopulate their valence electrons toward solvation due to impact from solvents or microsurroundings and provide the remaining alkali metal cations for coordinating with a variety of specific solvents, forming various electron-expanded complexes or solvated ionic pairs with special interactions. Such special solute-solvent interactions not only affect their electronic structures but also enable the formation of entirely new species. Taking Na(THF)n (n = 1-6, THF = tetrahydrofuran) and Na2@THF complexes as typical representatives, density functional theory calculations are carried out to explore the solvation of a sodium atom and its dimer in THF and characterize their complexes as solvent-incorporated supramolecular entities and particularly valence electron presolvation due to their interaction with solvent THF. Electron presolvation is caused by the Pauli repulsion between THF containing a coordinating O atom with a lone pair of electrons and the alkali metal Na or Na2 containing valence electrons, and THF coordination to them forces their valence electrons to redistribute, which can be easily realized in such solvents. Compared with strongly bound valance electrons of alkali metal atoms, THF coordination enables Na or Na2 electrons to exhibit much more active states (i.e., the presolvated states) featuring small vertical detachment energies of electrons and distorted diffuse distributions in the frames of the generally structured metal cation complexes, acting as the electron-expanded chemical entities. Furthermore, the degree of electron diffusion and the polarity of the Na-Na bond are proportional to the coordination number (n) and the coordination number difference (Δn) between two Na centers in Na2@THF. The unique properties of such entities are also discussed. This work offers a theoretical support to the supramolecular entities formed by alkali-metal atoms or their dimers with ligands containing O or N and uncovers the unique electron presolvation phenomena and also enriches our understanding of the novel metal atom complexes.
Collapse
Affiliation(s)
- Hui Dong
- School of Chemistry and Chemical Engineering, Shandong University, Jinan250100, P. R. China
| | - Yiwei Feng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan250100, P. R. China
| | - Yuxiang Bu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan250100, P. R. China
| |
Collapse
|
10
|
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).
Collapse
|
11
|
Li XH, Cheng X, Wang WL, Yu D, Ni BL, Sun WM. Alkali-Metal-Free Coinage Metalides: Specific Pairing and Location of Doping Atoms Bring Forth High Stability and Considerable Nonlinear Optical Response. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Xiang-Hui Li
- Medical Technology and Engineering College, Fujian Medical University, Fuzhou350004, Fujian, People’s Republic of China
- Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Normal University, Fuzhou, Fujian350007, People’s Republic of China
| | - Xin Cheng
- The Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou350108, People’s Republic of China
| | - Wen-Lu Wang
- The Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou350108, People’s Republic of China
| | - Dan Yu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou510006, China
| | - Bi-Lian Ni
- The Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou350108, People’s Republic of China
| | - Wei-Ming Sun
- The Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou350108, People’s Republic of China
| |
Collapse
|
12
|
Zhang B, Cheng Z, Hou J. The electronic structures and nonlinear optical properties of Alkali and Alkali earth metal atoms doped C6H6Cl6: A density functional theoretical study. J Mol Graph Model 2022; 116:108263. [DOI: 10.1016/j.jmgm.2022.108263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 06/18/2022] [Accepted: 06/27/2022] [Indexed: 10/31/2022]
|
13
|
Surface functionalization of Si6Li6 cluster with superalkalis to achieve high nonlinear optical response: A DFT study. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
14
|
Exploring the effect of complexant on remarkably high static and dynamic second hyperpolarizability of aziridine-based diffuse electron systems: a theoretical study. Struct Chem 2022. [DOI: 10.1007/s11224-022-01989-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
15
|
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]
|
16
|
Ahsan A, Sarfaraz S, Fayyaz F, Asghar M, Ayub K. Enhanced non-linear optical response of calix[4]pyrrole complexant based earthides in the presence of oriented external electric field. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118504] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
17
|
Sohail M, Khaliq F, Mahmood T, Ayub K, Tabassum S, Gilani MA. Influence of bi-alkali metals doping over Al12N12 nanocage on stability and optoelectronic properties: A DFT investigation. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
18
|
Kosar N, Ayub K, Mahmood T. Surface functionalization of twisted graphene C 32H 15 and C 104H 52 derivatives with alkalis and superalkalis for NLO response; a DFT study. J Mol Graph Model 2020; 102:107794. [PMID: 33212383 DOI: 10.1016/j.jmgm.2020.107794] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 10/18/2020] [Accepted: 10/30/2020] [Indexed: 12/14/2022]
Abstract
Herein, we present the detailed comparative study on geometric, electronic, optical and non-linear optical response of alkalis and superalkalis doped twisted graphene. The results illustrate that alkali metals and superalkalis interact with the central ring of the twisted graphene through non-covalent interactions which demonstrate the stability of the resultant complexes. NBO charges indicate the transfer of electrons from dopant (alkali metal atoms and superalkalis) towards twisted graphene sheet. Superalkalis doped twisted graphene complexes exhibit higher first hyperpolarizability values compared to alkali metals analogues. Among superalkalis doped complexes, K3O@C104H52 shows the highest βo value of 1.68 × 105 au. In frequency dependent first hyperpolarizability analysis, strong second harmonic generation (SHG) response of K3O@C32H15 complex is observed at both selected resonance frequency values (532 nm and1064 nm) whereas EOPE value of K3O@C32H15 complex shows higher induced response at 1064 nm wavelength. The static hyperpolarizability (βo) further increases under the influence of applied electric field. Among all complexes, Li3O@C32H15 graphene complex has the highest βo value (1.40 × 105 au) under applied electric field along x axis when sheet is in y-z plane. This analysis will be an important guideline for future studies on twisted graphene based NLO materials.
Collapse
Affiliation(s)
- Naveen Kosar
- Department of Chemistry, University of Management and Technology (UMT), C11, Johar Town Lahore, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Tariq Mahmood
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan.
| |
Collapse
|
19
|
Tahir H, Kosar N, Ayub K, Mahmood T. Outstanding NLO response of thermodynamically stable single and multiple alkaline earth metals doped C20 fullerene. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112875] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
20
|
Li XH, Zhang XL, Chen QH, Zhang L, Chen JH, Wu D, Sun WM, Li ZR. Coinage metalides: a new class of excess electron compounds with high stability and large nonlinear optical responses. Phys Chem Chem Phys 2020; 22:8476-8484. [PMID: 32285081 DOI: 10.1039/c9cp06894e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The possibility of using coinage metal atoms as excess electron acceptors is examined for the first time by designing a new class of M+-1-M'- (M = Li, Na, and K; M' = Cu, Ag, and Au) compounds termed "coinage metalides" on the basis of an intriguing Janus-type all-cis1,2,3,4,5,6-hexafluorocyclohexane (1) molecule. Under the large facial polarization of 1, the outermost ns1 electrons of alkali metal atoms can be transferred to coinage metal atoms, forming diffuse excess electrons around them. Consequently, the resulting M+-1-Cu- and M+-1-Ag- compounds exhibit significantly large nonlinear optical (NLO) responses. In particular, these novel M+-1-M'- compounds exhibit much higher stability (larger VIEs and Ec values) than that of the corresponding M+·1·M'- (M, M' = Li, Na, and K) alkalides. We hope this work could open up new possibilities for NLO material design by using coinage metal atoms as excess electron acceptors and, on the other hand, attract more experimental interest and efforts to synthesize such stable compounds in the laboratory.
Collapse
Affiliation(s)
- Xiang-Hui Li
- Medical Technology and Engineering College, Fujian Medical University, Fuzhou 350004, Fujian, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Li XH, Zhang L, Zhang XL, Ni BL, Li CY, Sun WM. Designing a new class of excess electron compounds with unique electronic structures and extremely large non-linear optical responses. NEW J CHEM 2020. [DOI: 10.1039/d0nj00896f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New Ca+-1-M′− (M′ = Li, Na, and K) compounds with typical alkalide features and electride-like characteristics have been obtained.
Collapse
Affiliation(s)
- Xiang-Hui Li
- Medical Technology and Engineering College
- Fujian Medical University
- Fuzhou 350004
- People's Republic of China
| | - Li Zhang
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research
- The School of Pharmacy
- Fujian Medical University
- Fuzhou 350108
- People's Republic of China
| | - Xiao-Ling Zhang
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research
- The School of Pharmacy
- Fujian Medical University
- Fuzhou 350108
- People's Republic of China
| | - Bi-Lian Ni
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research
- The School of Pharmacy
- Fujian Medical University
- Fuzhou 350108
- People's Republic of China
| | - Chun-Yan Li
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research
- The School of Pharmacy
- Fujian Medical University
- Fuzhou 350108
- People's Republic of China
| | - Wei-Ming Sun
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research
- The School of Pharmacy
- Fujian Medical University
- Fuzhou 350108
- People's Republic of China
| |
Collapse
|
22
|
Extremely large nonlinear optical response and excellent electronic stability of true alkaline earthides based on hexaammine complexant. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111899] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
23
|
Banerjee P, Avramopoulos A, Nandi PK. Static second-hyperpolarizability of diffuse electron cyclic compounds M2A2 (M = Be, Mg, Ca; A = Li, Na, K): Effect of basis set and electron correlation. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.05.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
24
|
Li B, Peng D, Gu FL, Zhu C. A nonlinear optical switch induced by an external electric field: inorganic alkaline–earth alkalide. RSC Adv 2019; 9:16718-16728. [PMID: 35516363 PMCID: PMC9064415 DOI: 10.1039/c9ra02470k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 05/14/2019] [Indexed: 12/03/2022] Open
Abstract
Exploring a new type of nonlinear optical switch molecule with excess electron character is extremely important for promoting the application of excess electron compounds in the nonlinear optical (NLO) field. Here, we report external electric field (EEF) induced second-order NLO switch molecules of inorganic alkaline–earth alkalides, M(NH3)6Na2 (M = Mg or Ca). The centrosymmetric structure of M(NH3)6Na2 is destroyed in the presence of an EEF, and then a long-range charge transfer process occurs. It has been found that excess electrons are gradually transferred from one Na atom to the other Na atom through the inorganic metal cluster M(NH3)6. Finally, the excess electrons are completely located on one of the two Na atoms. In particular, the electronic contribution of the static first hyperpolarizability (βe0) for M(NH3)6Na2 exhibits a large significant difference when the EEF is switched on. The βe0 value of M(NH3)6Na2 is 0 when EEF = 0, while the peak βe0 values are 5.95 × 106 (a.u.) for Mg(NH3)6Na2 (EEF = 58 × 10−4 (a.u.)) and 1.83 × 107 (a.u.) for Ca(NH3)6Na2 (EEF = 53 × 10−4 (a.u.)). This work demonstrates that the compounds M(NH3)6Na2 can serve as potential candidates for NLO switches. The inorganic alkaline–earth alkalide M(NH3)6Na2 (M = Mg or Ca) can serve as a potential candidate for a nonlinear optical switch.![]()
Collapse
Affiliation(s)
- Bo Li
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry & Environment of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Daoling Peng
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry & Environment of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Feng Long Gu
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry & Environment of South China Normal University
- Guangzhou 510006
- People's Republic of China
| | - Chaoyuan Zhu
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry & Environment of South China Normal University
- Guangzhou 510006
- People's Republic of China
| |
Collapse
|
25
|
Liang YY, Li B, Xu X, Long Gu F, Zhu C. A Density Functional Theory Study on Nonlinear Optical Properties of Double Cage Excess Electron Compounds: Theoretically Design M[Cu(Ag)@(NH
3
)
n
](M = Be, Mg and Ca;
n
= 1–3). J Comput Chem 2018; 40:971-979. [DOI: 10.1002/jcc.25371] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/11/2018] [Accepted: 05/15/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Yan Ying Liang
- Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of Education Guangzhou 510006 People's Republic of China
- School of Chemistry & Environment of South China Normal University Guangzhou 510006 People's Republic of China
| | - Bo Li
- Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of Education Guangzhou 510006 People's Republic of China
- School of Chemistry & Environment of South China Normal University Guangzhou 510006 People's Republic of China
| | - Xuan Xu
- Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of Education Guangzhou 510006 People's Republic of China
- School of Chemistry & Environment of South China Normal University Guangzhou 510006 People's Republic of China
| | - Feng Long Gu
- Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of Education Guangzhou 510006 People's Republic of China
- School of Chemistry & Environment of South China Normal University Guangzhou 510006 People's Republic of China
| | - Chaoyuan Zhu
- Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of Education Guangzhou 510006 People's Republic of China
- School of Chemistry & Environment of South China Normal University Guangzhou 510006 People's Republic of China
- Department of Applied ChemistryInstitute of Molecular Science and Center for Interdisciplinary Molecular Science, National Chiao‐Tung University Hsinchu 30010 Taiwan
| |
Collapse
|
26
|
Roy RS, Nandi PK. Electronic structure and large second-order non-linear optical property of COT derivatives - a theoretical exploration. Phys Chem Chem Phys 2018; 20:18744-18755. [PMID: 29961775 DOI: 10.1039/c8cp00163d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A new strategy to design new molecules based on a fused hydrocarbon ring system comprising a COT ring and two 5-membered rings has been proposed for the study of second order NLO properties. The four charge transferring groups -NR2 (R = H, Li, Na and K) in conjunction with a sufficient number of electron withdrawing groups lead to significant variation of structural parameters and polarity. The charge transfer characteristics can be strongly modulated by introducing calcium metal atoms at suitable sites. Ca metal atoms end-capping the nitrogen ends of two adjacent -CN groups lead to electride character while a Ca metal atom bonded directly to the COT ring leads to greater charge transfer. The size of the alkali metal atom has been found to have a dramatic effect on the enhancement of first hyperpolarizability. The most significant electronic asymmetry induced by the larger potassium metal atom strongly enhances the magnitude of first hyperpolarizability. The variation of first hyperpolarizability has been satisfactorily explained in terms of TD-CAMB3LYP calculated spectroscopic parameters in light of the two-state model.
Collapse
Affiliation(s)
- Ria Sinha Roy
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, India.
| | | |
Collapse
|
27
|
Diffuse electron of alkali metals (Li, Na, K) or diffuse electron pair of alkaline earth metals (Be, Mg, Ca) which predict larger second hyperpolarizability? A comprehensive study of M⋯NH3 model compounds. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2017.12.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
28
|
Sun WM, Ni BL, Wu D, Lan JM, Li CY, Li Y, Li ZR. Designing Alkalides with Considerable Nonlinear Optical Responses and High Stability Based on the Facially Polarized Janus all-cis-1,2,3,4,5,6-Hexafluorocyclohexane. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00491] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Ming Sun
- The
Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Bi-Lian Ni
- The
Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Di Wu
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Jian-Ming Lan
- The
Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Chun-Yan Li
- The
Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People’s Republic of China
| | - Ying Li
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Zhi-Ru Li
- Laboratory
of Theoretical and Computational Chemistry, Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| |
Collapse
|