1
|
Lo S, Kitao T, Nada Y, Murata K, Ishii K, Uemura T. Chiral Induction in Buckminsterfullerene Using a Metal–Organic Framework. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shao‐Wei Lo
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
| | - Takashi Kitao
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa Chiba 277–8561 Japan
| | - Yusuke Nada
- Department of Advanced Materials Science, Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa Chiba 277–8561 Japan
| | - Kei Murata
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153–8505 Japan
| | - Kazuyuki Ishii
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153–8505 Japan
| | - Takashi Uemura
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa Chiba 277–8561 Japan
| |
Collapse
|
2
|
Lo SW, Kitao T, Nada Y, Murata K, Ishii K, Uemura T. Chiral Induction in Buckminsterfullerene Using a Metal-Organic Framework. Angew Chem Int Ed Engl 2021; 60:17947-17951. [PMID: 34110685 DOI: 10.1002/anie.202105967] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/04/2021] [Indexed: 11/09/2022]
Abstract
Chiral induction is an emerging topic of interest in various areas of chemistry because of its relationship to the elusive mechanism of spontaneous symmetry breaking in nature. Buckminsterfullerene (C60 ) with the shape of a highly symmetric truncated icosahedron has rarely been referred for chiral induction due to the difficult symmetry breaking. In this work, we demonstrate that a chiral metal-organic framework (MOF) can provide a key field for chiral induction. C60 could be incorporated into the chiral nanochannels of the MOF using an in situ self-assembly strategy. The circular dichroism spectra of the resulting nanocomposites showed an intense chiral signal in the absorption region of C60 . Experimental and theoretical studies showed that this unprecedented chiral induction of C60 was attributed to hybridization of the molecular orbitals through a close association with the pore surface of the MOF. Our method can endow highly symmetric achiral compounds with chirality, paving the new way toward fabrication of novel chiral nanomaterials.
Collapse
Affiliation(s)
- Shao-Wei Lo
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takashi Kitao
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan
| | - Yusuke Nada
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan
| | - Kei Murata
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Kazuyuki Ishii
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Takashi Uemura
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan
| |
Collapse
|
3
|
Shi W, Salerno F, Ward MD, Santana-Bonilla A, Wade J, Hou X, Liu T, Dennis TJS, Campbell AJ, Jelfs KE, Fuchter MJ. Fullerene Desymmetrization as a Means to Achieve Single-Enantiomer Electron Acceptors with Maximized Chiroptical Responsiveness. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004115. [PMID: 33225503 DOI: 10.1002/adma.202004115] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/17/2020] [Indexed: 06/11/2023]
Abstract
Solubilized fullerene derivatives have revolutionized the development of organic photovoltaic devices, acting as excellent electron acceptors. The addition of solubilizing addends to the fullerene cage results in a large number of isomers, which are generally employed as isomeric mixtures. Moreover, a significant number of these isomers are chiral, which further adds to the isomeric complexity. The opportunities presented by single-isomer, and particularly single-enantiomer, fullerenes in organic electronic materials and devices are poorly understood however. Here, ten pairs of enantiomers are separated from the 19 structural isomers of bis[60]phenyl-C61-butyric acid methyl ester, using them to elucidate important chiroptical relationships and demonstrating their application to a circularly polarized light (CPL)-detecting device. Larger chiroptical responses are found, occurring through the inherent chirality of the fullerene. When used in a single-enantiomer organic field-effect transistor, the potential to discriminate CPL with a fast light response time and with a very high photocurrent dissymmetry factor (gph = 1.27 ± 0.06) is demonstrated. This study thus provides key strategies to design fullerenes with large chiroptical responses for use as chiral components of organic electronic devices. It is anticipated that this data will position chiral fullerenes as an exciting material class for the growing field of chiral electronic technologies.
Collapse
Affiliation(s)
- Wenda Shi
- Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK
| | - Francesco Salerno
- Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK
- Center for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Matthew D Ward
- Center for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
- Department of Physics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Alejandro Santana-Bonilla
- Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK
| | - Jessica Wade
- Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK
- Center for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
- Department of Physics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Xueyan Hou
- School of Physics and Astronomy and Materials Research Institute, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Tong Liu
- School of Physics and Astronomy and Materials Research Institute, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - T John S Dennis
- School of Physics and Astronomy and Materials Research Institute, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Alasdair J Campbell
- Center for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
- Department of Physics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Kim E Jelfs
- Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK
- Center for Processable Electronics, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK
| | - Matthew J Fuchter
- Department of Chemistry and Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London, W12 0BZ, UK
| |
Collapse
|
4
|
Paul D, Deb J, Sarkar U. A Detailed DFT Study on Electronic Structures and Nonlinear Optical Properties of Doped C
30. ChemistrySelect 2020. [DOI: 10.1002/slct.202001988] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Debolina Paul
- Department of PhysicsAssam University Silchar 788011 India
| | - Jyotirmoy Deb
- Department of PhysicsAssam University Silchar 788011 India
| | - Utpal Sarkar
- Department of PhysicsAssam University Silchar 788011 India
| |
Collapse
|
5
|
Al-Zahrani FAM, El-Shishtawy RM, Asiri AM, Al-Soliemy AM, Mellah KA, Ahmed NSE, Jedidi A. A new phenothiazine-based selective visual and fluorescent sensor for cyanide. BMC Chem 2020; 14:2. [PMID: 31922151 PMCID: PMC6945606 DOI: 10.1186/s13065-019-0656-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 12/17/2019] [Indexed: 01/01/2023] Open
Abstract
A new donor-π-acceptor derived from phenothiazine, namely 2-(2-((10-hexyl-10H-phenothiazin-3-yl)methylene)-3-oxo-2,3-dihydroinden-1-ylidene) malononitrile (PTZON) was synthesized and fully characterized, and its potential as a fluorescent sensor for cyanide anion was investigated. The PTZON showed a visible absorption band at 564 nm corresponds to an intramolecular charge transfer (ICT) and an emission band at 589 nm in CH3CN/H2O. The results of cyanide anion titration revealed ratiometric changes in both absorption and fluorescence spectra as a result of the nucleophilic addition of cyanide anion via Michael addition. The optical studies, FT-IR spectra, NMR, high-resolution mass, and DFT calculations confirmed the sensing mechanism. The selectivity of PTZON as a cyanide anion fluorescent sensor was proved in mixed solvent solutions, and the sensitivity was as low as 0.011 µM, which is far lower than the value allowed by the United States Environmental Protection Agency for drinking water (1.9 µM). Also, the detection limit of PTZON was assessed to be 3.39 μM by the spectrophotometric method. The binding stoichiometry between PTZON and cyanide anion was found to be 1:1 as evidenced by mass spectra. TLC silica-coated plates test strips demonstrated the fluorescent detection of cyanide anion.
Collapse
Affiliation(s)
- Fatimah A M Al-Zahrani
- 1Chemistry Department, Faculty of Science, King Khalid University, P.O.Box 9004, Abha, 61413 Saudi Arabia
| | - Reda M El-Shishtawy
- 2Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589 Saudi Arabia.,3Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Centre, Dokki, Cairo 12622 Egypt
| | - Abdullah M Asiri
- 2Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589 Saudi Arabia.,4Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
| | - Amerah M Al-Soliemy
- 5Chemistry Department, Faculty of Science, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Khloud Abu Mellah
- 1Chemistry Department, Faculty of Science, King Khalid University, P.O.Box 9004, Abha, 61413 Saudi Arabia
| | - Nahed S E Ahmed
- 3Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Centre, Dokki, Cairo 12622 Egypt
| | - Abdesslem Jedidi
- 2Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589 Saudi Arabia
| |
Collapse
|
6
|
Utembe W. Chirality, a neglected physico-chemical property of nanomaterials? A mini-review on the occurrence and importance of chirality on their toxicity. Toxicol Lett 2019; 311:58-65. [DOI: 10.1016/j.toxlet.2019.04.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/03/2019] [Accepted: 04/30/2019] [Indexed: 02/06/2023]
|
7
|
Hu Y, Xu X, Jiang Y, Zhang G, Li W, Sun X, Tian WQ, Feng Y. Double-helix PnLin chains: novel potential nonlinear optical materials. Phys Chem Chem Phys 2018; 20:12618-12623. [DOI: 10.1039/c8cp01116h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The structures, circular dichroism (CD) spectra and nonlinear optical (NLO) responses of a series of inorganic double-helix chains, PnLin (n = 6–12), have been investigated using the quantum chemistry method.
Collapse
Affiliation(s)
- Yangyang Hu
- Key Laboratory of Green Chemical Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150080
- China
| | - Xiaodong Xu
- Department of Physics
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Yingjie Jiang
- Key Laboratory of Green Chemical Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150080
- China
| | - Guiling Zhang
- Key Laboratory of Green Chemical Technology of College of Heilongjiang Province
- College of Chemical and Environmental Engineering
- Harbin University of Science and Technology
- Harbin 150080
- China
| | - Weiqi Li
- Department of Physics
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Xiudong Sun
- Department of Physics
- Harbin Institute of Technology
- Harbin 150001
- China
- Key Laboratory of Micro-Nano Optoelectronic Information System
| | - Wei Quan Tian
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Yunan Feng
- Department of Integrated Service
- Heilongjiang Undergraduate Career and Entrepreneurship Center
- Harbin 150090
- China
| |
Collapse
|
8
|
Ma W, Xu L, de Moura AF, Wu X, Kuang H, Xu C, Kotov NA. Chiral Inorganic Nanostructures. Chem Rev 2017; 117:8041-8093. [DOI: 10.1021/acs.chemrev.6b00755] [Citation(s) in RCA: 485] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | - André F. de Moura
- Department
of Chemistry, Federal University of São Carlos, CP 676, CEP 13.565-905, São Carlos, SP, Brazil
| | | | | | | | | |
Collapse
|
9
|
Liu C, Si Y, Shi S, Yang G, Pan X. Understanding the photophysical properties of chiral dinuclear Re(i) complexes and the role of Re(i) in their complexes. Dalton Trans 2016; 45:7285-93. [DOI: 10.1039/c6dt00089d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated the electronic structure, UV-Vis/CD spectra and the second-order NLO properties of chiral dinuclear Re(i) complexes and elucidated structure–property relationships with the aid of DFT calculations.
Collapse
Affiliation(s)
- Chunyu Liu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yanling Si
- College of Resource and Environmental Science
- Jilin Agricultural University
- Changchun
- P. R. China
| | - Shaoqing Shi
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Guochun Yang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Xiumei Pan
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| |
Collapse
|
10
|
Wang MQ, Zhou X, Tian WQ, Goddard JD. Electronic and optical properties of the five most stable C96 isomers. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Liu C, Si Y, Pan X, Yang G. Photophysical properties of quinoxaline-fused [7]carbohelicene derivatives. RSC Adv 2015. [DOI: 10.1039/c5ra12577d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The electronic circular dichroism, UV-Vis absorption, nonlinear optics, and charge transport properties of novel quinoxaline-fused 7-carbohelicene derivatives have been investigated for the first time.
Collapse
Affiliation(s)
- Chunyu Liu
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yanling Si
- College of Resource and Environmental Science
- Jilin Agricultural University
- Changchun
- P. R. China
| | - Xiumei Pan
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Guochun Yang
- Faculty of Chemistry
- Northeast Normal University
- Changchun
- China
| |
Collapse
|
12
|
Ruíz A, Morera-Boado C, Almagro L, Coro J, Maroto EE, Herranz MÁ, Filippone S, Molero D, Martínez-Álvarez R, Garcia de la Vega JM, Suárez M, Martín N. Dumbbell-Type Fullerene-Steroid Hybrids: A Join Experimental and Theoretical Investigation for Conformational, Configurational, and Circular Dichroism Assignments. J Org Chem 2014; 79:3473-86. [DOI: 10.1021/jo500178t] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - José M. Garcia de la Vega
- Departamento de
Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049-Madrid, Spain
| | | | | |
Collapse
|
13
|
Si Y, Yang G. Nonplanar Donor–Acceptor Chiral Molecules with Large Second-Order Optical Nonlinearities: 1,1,4,4-Tetracyanobuta-1,3-diene Derivatives. J Phys Chem A 2014; 118:1094-102. [PMID: 24467250 DOI: 10.1021/jp4099717] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanling Si
- College
of Resource and Environmental Science, Jilin Agricultural University, Changchun, 130118 Jilin, China
| | - Guochun Yang
- Institute
of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 Jilin, China
| |
Collapse
|
14
|
The absorption spectrum of C60 in n-hexane solution revisited: Fitted experiment and TDDFT/PCM calculations. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2013.12.067] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
15
|
Nénon S, Champagne B. SCC-DFTB calculation of the static first hyperpolarizability: from gas phase molecules to functionalized surfaces. J Chem Phys 2014; 138:204107. [PMID: 23742454 DOI: 10.1063/1.4806259] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The performance of the self-consistent charge density functional tight binding (SCC-DFTB) method for calculating the first hyperpolarizability of π-conjugated compounds has been assessed with respect to results obtained with high-level ab initio methods and density functional theory (DFT). The SCC-DFTB method performs similarly or better than DFT with the PBE XC functional. Thus, if for small π-conjugated linkers SCC-DFTB can reproduce trends, for longer chains the first hyperpolarizabilities are overestimated. In the case of push-pull thiophenes, the β values are strongly overestimated, as it is also the case with the B3LYP and PBE XC functionals. On the other hand, the SCC-DFTB method closely reproduces the evolution of β in p-disubstituted benzenes as a function of the donor and acceptor groups, as estimated at the MP2 level. The reliability of SCC-DFTB to determine the bond length alternation and the dihedral angles between the aromatic rings has also been tackled, demonstrating that both are underestimated. Overall, the SCC-DFTB calculations are of the same quality as those performed with the conventional PBE XC functional on which the method was parameterized but the SCC-DFTB calculations are computationally very little demanding, and it can therefore be adopted for very large systems for screening nonlinear optical materials as well as for assessing structure-property relationships. This is illustrated with an application on the first hyperpolarizability of an indolino-oxazolidine molecular switch grafted on a SiO2 surface. This has enabled to pinpoint (i) the effect of the surface on the donor/acceptor character of the linking substituent, (ii) the impact of molecular orientation, (iii) the role of a spacer between the π-conjugated switch and the surface, (iv) the global effect of the surface on the β contrast, and also (v) the fact that the molecular switches can maintain this contrast when adsorbed.
Collapse
Affiliation(s)
- Sébastien Nénon
- Laboratoire de Chimie Théorique, University of Namur, rue de Bruxelles, 61, B5000 Namur, Belgium.
| | | |
Collapse
|
16
|
Si Y, Yang G. Theoretical study on the photophysical properties of chiral mononuclear and dinuclear zinc complexes. RSC Adv 2013. [DOI: 10.1039/c2ra23116f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
17
|
Xu L, Li C, Li F, Li X, Tao S. Molecular structure, electronic property and vibrational spectroscopy of C24-glycine and Gd@C24-glycine complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 98:183-189. [PMID: 23000931 DOI: 10.1016/j.saa.2012.08.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 08/03/2012] [Accepted: 08/21/2012] [Indexed: 06/01/2023]
Abstract
Structure, electronic property and vibrational spectroscopy of C(24)-glycine and Gd@C(24)-glycine were systematically explored using the hybrid DFT-B3LYP functional. The interaction between empty C(24) cage and the smallest amino acid (glycine) was also investigated. It was found that the glycine molecule is energetically favorable to interact with the Mid-site on the C(24) cage through the amino nitrogen active site, rather than Top-site. The endohedral Gd atom increases the volume of the cage by around 6.7-9.8%. Analysis of frontier molecular orbitals reveals that the Gd@C(24)-glycine has the low-kinetic stability, being consistent with its thermodynamic property reflected by dissociation energy. We also see that the VIE and VEA of empty C(24) cage are slightly affected by absorbed glycine and endohedral Gd atom. Additionally, the assignments of simulated IR spectra are explored. The work may provide a theoretical reference for further application related structurally to potential antitumour activity.
Collapse
Affiliation(s)
- Liang Xu
- Department of Orthopedic, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, PR China
| | | | | | | | | |
Collapse
|
18
|
Yang G, Si Y, Su Z. Chiroptical, linear, and second-order nonlinear optical properties of binaphthol derivatives. Org Biomol Chem 2012; 10:8418-25. [PMID: 23032517 DOI: 10.1039/c2ob26374b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated the chiroptical, linear, and second-order nonlinear optical (NLO) properties of seven binaphthol derivatives and elucidated structure-property relationships from the micromechanism for the first time. The excitation energies, oscillator strengths, and rotational strengths of the 150 lowest energy electron excitations for the most stable conformers have been calculated at TDB3LYP/cc-pVDZ level of theory. The experimental UV-vis absorption energies were reproduced well by our calculations. The simulated circular dichroism (CD) spectra and calculated optical rotation (OR) values are in reasonable agreement with experimental ones. These results demonstrate that TDDFT calculations can not only describe the electron transition property but also can be used to assign the absolute configurations (ACs) of binaphthol derivatives with high confidence. Whereas OR values are more sensitive to the molecular structures than CD spectra. The electron transition property and chiroptical origin have been assigned and analyzed. These derivatives possess remarkably large molecular first hyperpolarizabilities, especially compound 7 which has a value of 241.65 × 10(-30) esu. This value is about 60 times as large as that of highly π-delocalized phenyliminomethyl ferrocene complex. Moreover, compound 6 exhibits pronounced different second-order NLO response values from neutral state to the two cationic states (6(2+) and 6(4+)), which indicates that this compound could act as a potential NLO switch material. The cooperativity of intramolecular charge transfer of the studied compounds was also discussed.
Collapse
Affiliation(s)
- Guochun Yang
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China.
| | | | | |
Collapse
|
19
|
|