1
|
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] [Grants] [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 β o 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 β o values. The notable β o 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.
Collapse
Affiliation(s)
- Tamseela Bibi
- Department of Chemistry, COMSATS University Abbottabad Campus 22060 Pakistan +92-992-383441 +92-992-383591
| | - Tabish Jadoon
- Department of Chemistry, COMSATS University Abbottabad Campus 22060 Pakistan +92-992-383441 +92-992-383591
- Department of Chemistry, GPGC No. 1 Abbottabad KPK Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Abbottabad Campus 22060 Pakistan +92-992-383441 +92-992-383591
| |
Collapse
|
2
|
Yang YD, Yang BB, Li L. A nonneglectable stereochemical factor in drug development: Atropisomerism. Chirality 2022; 34:1355-1370. [PMID: 35904531 DOI: 10.1002/chir.23497] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 11/07/2022]
Abstract
Chirality is one of the key factors affecting the medicinal efficacy of compounds. In addition to central chirality, sterically hindered chiral axes commonly appear in drugs and the resulting chirality is known as atropisomerism. With developments in medicinal chemistry, atropisomerism has attracted increasing attention. This review discusses the classification, biological activity, pharmacokinetics, toxicity and side effects of atropisomers, and can serve as a reference in the research and development of potential chiral drugs.
Collapse
Affiliation(s)
- Ya-Dong Yang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Bei-Bei Yang
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Li Li
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| |
Collapse
|
3
|
Talib SH, Hussain S, Muhammad S, Baskaran S, Iqbal J, Ayub K. Exploring the potential of novel transition metal complexes derived from ONO donor type ligand: a quantum chemical study. J Mol Model 2019; 25:284. [PMID: 31468196 DOI: 10.1007/s00894-019-4157-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 08/14/2019] [Indexed: 10/26/2022]
Abstract
In the present quantum chemical investigation, we predict several novel transition metal complexes which are designed using tridentate ONO donor type Schiff base ligand (2-((E)-((Z)-4-hydroxypent-3-en-2-ylidene) amino) phenol). The stable molecular geometries of newly designed metal complexes are obtained using density functional theory (DFT) methods. Several properties including geometrical parameters, energies of frontier molecular orbitals (FMOs), and interaction energies are calculated for optimized metal complexes. The more negative interaction energies illustrate more susceptibilities of the reaction of metal cations with ligand. The charge transfers from ligand to metals are observed in the d7 and d8 metal complexes while it is seen as backdonation of charge from metal to ligand in the d10 complexes. The quantum chemical characterizations are performed for calculating UV-visible spectra and IR frequencies for all the designed metal complexes. All designed metal complexes show multiple absorption peaks in UV region ranging from 184 to 376 nm, which are related to metal to ligand and ligand to metal charge transfer processes. The IR frequency analysis shows that the -C=N- stretching frequency of ligand in the region of 1650-1580 cm-1 is decreased by between 50 and 100 cm-1, which may assign the coordination of ligand with metal via nitrogen. Moreover, the investigations of nonlinear optical (NLO) polarizabilities among selected complexes show that these complexes may possess good potential for NLO applications. The most interesting results are found about the third-order NLO polarizabilities (γ||) where the γ|| amplitudes are found to be 60.01 × 10-36, 56.48 × 10-36, 90.04 × 10-36, and 64.57 × 10-36 esu for complexes 1, 2, 9, and 10, respectively. Thus, we believe that the present investigation may bring the newly designed metal complexes in the limelight of scientific interest for their practical realization in optical and nonlinear optical applications. Graphical abstract Several novel transition metal complexes are designed using tridentate ONO donor type Schiff base ligand as efficient NLO materials.
Collapse
Affiliation(s)
- Shamraiz Hussain Talib
- Theoretical and Computational Laboratory, Department of Chemistry, Tsinghua University, Beijing, 100084, People's Republic of China.,Department of Chemistry, Mohi-ud-Din Islamic University, Nerian Sharif, Azad Jammu & Kashmir, Pakistan
| | - Sajjad Hussain
- Department of Chemistry, Mohi-ud-Din Islamic University, Nerian Sharif, Azad Jammu & Kashmir, Pakistan.,Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Shabbir Muhammad
- Department of Physics, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.
| | - Sambath Baskaran
- Theoretical and Computational Laboratory, Department of Chemistry, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Javed Iqbal
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad, KPK, 22060, Pakistan
| |
Collapse
|
4
|
Mei H, Jean M, Albalat M, Vanthuyne N, Roussel C, Moriwaki H, Yin Z, Han J, Soloshonok VA. Effect of substituents on the configurational stability of the stereogenic nitrogen in metal(II) complexes of α-amino acid Schiff bases. Chirality 2019; 31:401-409. [PMID: 30916841 DOI: 10.1002/chir.23066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/27/2019] [Accepted: 03/01/2019] [Indexed: 01/03/2023]
Abstract
Herein, we report a general method for quantitative measurement of the configurational stability of the stereogenic nitrogen coordinated to M (II) in the corresponding square planar complexes. This stereochemical approach is quite sensitive to steric and electronic effects of the substituents and shown to work well for Ni(II), Pd(II), and Cu(II) complexes. Structural simplicity of the compounds used, coupled with high sensitivity and reliability of experimental procedures, bodes well for application of this approach in evaluation of chemical stability and stereochemical properties of newly designed chiral ligands for general asymmetric synthesis of tailor-made amino acids.
Collapse
Affiliation(s)
- Haibo Mei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Marion Jean
- iSm2, Aix Marseille Université, Marseille, France
| | | | | | | | | | - Zizhen Yin
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country, San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| |
Collapse
|
5
|
Han J, Jean M, Roussel C, Moriwaki H, Soloshonok VA. Chromatographic approach to study the configurational stability of Ni(II) complexes of amino-acid Schiff bases possessing stereogenic nitrogen. Chirality 2019; 31:328-335. [PMID: 30702773 DOI: 10.1002/chir.23059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/03/2019] [Accepted: 01/04/2019] [Indexed: 01/17/2023]
Abstract
Herein, we disclose the design of a model Ni(II) complex of glycine Schiff base possessing single-nitrogen stereogenic center, which was successfully used for high-performance liquid chromatography (HPLC)-assisted assessment of its configurational stability. The major finding is that the configurational stability of the Ni(II)-coordinated nitrogen is profoundly dependent on the reaction conditions used, in particular the solvent, and can range from inconsequential (t½ less than 5 min) to virtually completely stable (t½ 90 y). The discovery reported in this study most likely to be of certain theoretical and synthetic value.
Collapse
Affiliation(s)
- Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Marion Jean
- Aix-Marseille University, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Christian Roussel
- Aix-Marseille University, CNRS, Centrale Marseille, iSm2, Marseille, France
| | | | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| |
Collapse
|