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Al-Harazie AG, Gomaa EA, Zaky RR, Abd El-Hady MN. Spectroscopic Characterization, Cyclic Voltammetry, Biological Investigations, MOE, and Gaussian Calculations of VO(II), Cu(II), and Cd(II) Heteroleptic Complexes. ACS OMEGA 2023; 8:13605-13625. [PMID: 37091434 PMCID: PMC10116629 DOI: 10.1021/acsomega.2c07592] [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: 11/28/2022] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Abstract
A novel hydrazone ligand (o-H2BMP) N-(benzo[d]thiazol-2-yl)-3-oxo-3-(2-(1-(pyridin-2-yl)ethylidene)hydrazinyl)propanamide alongside its Cu(II), Cd(II), and VO(II) complexes were prepared and structurally characterized via various spectroscopic analyses (Fourier transform infrared spectroscopy, UV-visible spectroscopy, 1H/13C NMR spectroscopy, liquid chromatography coupled to mass spectrometry, and electron paramagnetic resonance spectroscopy) as well as by elemental analysis, thermal gravimetry analysis/differential thermal analysis, and magnetic moment measurements. Powder X-ray diffraction analysis was also performed for the free ligand and its metal complexes to determine the crystallographic structures and atomic spacing. It also provided information on unit cell dimensions and the average crystallite size. Furthermore, geometric optimization and computational studies were carried out by applying Gaussian (09) software based on density-functional theory coupled with the B3LYP functional and LANL2DZ/6-31+G(d,p) mixed basis set to evaluate some distinct features such as molecular electrostatic potential, E HOMO, and E LUMO. Moreover, electrochemical measurements were performed for Cu(II) in the absence/presence of the chelating agent to predict the effect of complexation interaction in the solution state study. As part of the biological examination, antioxidant and antimicrobial assays were conducted for each compound individually, in addition to cytotoxicity evaluations via MTT assays for all isolated complexes compared to the corresponding metal salts. The MOE (molecular operating environment) approach was also applied to model the interface between the isolated compounds and proteins that were expressed in breast cancer at the atomic level.
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Affiliation(s)
- Anwer G. Al-Harazie
- Chemistry
Department, Faculty of Education and Applied Sciences—Arhab, Sana’a University, Sana’a 1247, Yemen
- Chemistry
Department, Faculty of Science, Mansoura
University, Mansoura 35511, Egypt
- ,
| | - Esam A. Gomaa
- Chemistry
Department, Faculty of Science, Mansoura
University, Mansoura 35511, Egypt
| | - Rania R. Zaky
- Chemistry
Department, Faculty of Science, Mansoura
University, Mansoura 35511, Egypt
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McCarthy JS, McCormick MJ, Zimmerman JH, Hambrick HR, Thomas WM, McMillen CD, Wagenknecht PS. Role of the Trifluoropropynyl Ligand in Blue-Shifting Charge-Transfer States in Emissive Pt Diimine Complexes and an Investigation into the PMMA-Imposed Rigidoluminescence and Rigidochromism. Inorg Chem 2022; 61:11366-11376. [PMID: 35820113 DOI: 10.1021/acs.inorgchem.2c01564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Square-planar PtII complexes are of interest as dopants for the emissive layer of organic light-emitting diodes. Herein, the photophysics of three Pt bipyridyl complexes with the strongly e- withdrawing, high-field, 3,3,3-trifluoropropynyl ligand has been investigated. One complex, (phbpy)PtC2CF3 (phbpy = 6-phenyl-2,2'-dipyridyl), has also been characterized by single-crystal X-ray diffraction. All complexes reported are emissive in both RT CH2Cl2 solution (ΦPL = 0.007 to 0.027) and PMMA film (ΦPL = 0.25 to 0.42). The trifluoropropynyl ligand elevates the energy of the MLCT and LL'CT states above that of the IL π-π* state, resulting in IL emission in all cases. The emission energies of the trifluoropropynyl compounds are also blue-shifted relative to the analogous pentafluorophenylethynyl compounds, suggesting that the trifluoropropynyl ligand is one of the most electron-withdrawing alkynyl ligands. Rate constants for radiative and nonradiative deactivation were determined from experimentally determined values of ΦPL and excited-state lifetimes in both solution and PMMA films. The increase in ΦPL upon incorporation into PMMA film (rigidoluminescence) results from a decrease in the rate constant for non-radiative relaxation. Experimental activation energies for excited-state decay in combination with TDDFT are consistent with the rigidoluminescence resulting from an increase in the energy of the non-emissive triplet metal-centered state. Two of the complexes investigated, (Ph2bpy)Pt(C2CF3)2 and (t-Bu2bpy)Pt(C2CF3)2, where t-Bu2bpy = 4,4'-di-tert-butyl-2,2'-dipyridyl and Ph2bpy = 4,4'-diphenyl-2,2'-dipyridyl, exhibit concentration-dependent excimer emission (orange) along with monomer emission (blue), enabling fine-tuning of the emission color. However, excimer emission was absent in cured PMMA films up to the solubility limit for solution processing of (Ph2bpy)Pt(C2CF3)2 in CH2Cl2, demonstrating the diffusional nature of excimer formation.
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Affiliation(s)
- Jackson S McCarthy
- Department of Chemistry, Furman University, Greenville, South Carolina 29609, United States
| | - Mary Jo McCormick
- Department of Chemistry, Furman University, Greenville, South Carolina 29609, United States
| | - John H Zimmerman
- Department of Chemistry, Furman University, Greenville, South Carolina 29609, United States
| | - H Rhodes Hambrick
- Department of Chemistry, Furman University, Greenville, South Carolina 29609, United States
| | - Wilson M Thomas
- Department of Chemistry, Furman University, Greenville, South Carolina 29609, United States
| | - Colin D McMillen
- Department of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Paul S Wagenknecht
- Department of Chemistry, Furman University, Greenville, South Carolina 29609, United States
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Zhang BH, Li JA, Wang M, Ren AM, He TF, Lin PP, Zhang YL, Xi XY, Zou LY. From luminescence quenching to high-efficiency phosphorescence: a theoretical study on the monomeric and dimeric forms of platinum(II) complexes with both 2-pyridylimidazol-2-ylidene and bipyrazolate chelates. Phys Chem Chem Phys 2021; 23:5652-5664. [PMID: 33656501 DOI: 10.1039/d0cp06269c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To develop solid-state light-emitting materials with high luminescence efficiency, determining the potential photophysics and luminescence mechanisms of the aggregation state remains a challenge and a priority. Here, we apply density functional theory to study the photophysical properties of a series of square planar Pt(ii) complexes in both monomeric and dimeric forms. We reveal that four monomeric Pt(ii) complexes are dominated by triplet ligand-to-ligand charge-transfer, and the lack of the triplet metal-to-ligand charge-transfer feature results in weak spin-orbit coupling (SOC), which leads to limited radiative rates; moreover, calculated nonradiative transition rates are one or two orders of magnitude higher than those radiative rates because a large amount of reorganization energy caused by the vibration of the bipyrazolate (bipz) ligand cannot be readily suppressed in the monomeric form. Therefore, four monomers exhibit photoluminescence quenching in CH2Cl2 solution in both theoretical calculations and experiments. However, in the solid state, the intense luminescence phenomenon indicates obviously distinct properties between the monomer and aggregation. We carried out a dimer model to interpret that the interaction of PtPt induces a metal-metal-to-ligand charge-transfer excimeric state, which leads more metal components to participate in the charge transfer and enhance the SOC effect. At the same time, the ligand vibration can be significantly reduced by the shortened distance, and there is a strong π-π packing interaction in the dimer; thus, an excellent quantum yield can be achieved in aggregation. In addition, we disclose that introducing bulky substituents bearing electron-donating groups at R' and R'' positions have little effect on the properties of the monomers; however, there is a benefit of restricting the internal reorganization energy through the intermolecular interaction when packing in the solid state. Therefore, substitutions can be tuned to improve the properties of monomers (such as emission energy and reorganization energy). We hope that our work will shine some light on Pt(ii) emitters in the fabrication of efficient OLEDs.
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Affiliation(s)
- Bo-Hua Zhang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Jun-An Li
- Gastroenterology and Center of Digestive Endoscopy, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, P. R. China
| | - Min Wang
- Department of Prosthodontics, School of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Ai-Min Ren
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Teng-Fei He
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Pan-Pan Lin
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Yun-Li Zhang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Xiao-Yue Xi
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
| | - Lu-Yi Zou
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, P. R. China.
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4
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Hashem SG, Elsaady MM, Afify HG, Omer WE, Youssef AO, El-Kemary M, Attia MS. Determination of uric acid in serum using an optical sensor based on binuclear Pd(II) 2-pyrazinecarboxamide-bipyridine doped in a sol gel matrix. Talanta 2019; 199:89-96. [PMID: 30952321 DOI: 10.1016/j.talanta.2019.02.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 02/10/2019] [Accepted: 02/12/2019] [Indexed: 01/23/2023]
Abstract
A new highly green luminescent binuclear palladium 2-pyrazinecarboxamide-bipyridine complex [Pd(pyc)(bpy)] was prepared and characterized. The binuclear Pd(pyc)(bpy) complex doped in sol-gel matrix has a strong luminescence intensity at 547 nm with λex = 330 nm in water The method depends on the quenching of the luminescence intensity of the binuclear Pd(pyc)(bpy) complex at 547 nm by different concentrations of uric acid. The remarkable quenching of the luminescence intensity of the binuclear Pd(pyc)(bpy) complex, doped in a sol-gel matrix, by uric acid was successfully used for the determination of uric acid in serum samples of patients with hypouricemia disease. The calibration plot was achieved over the concentration 3.9 × 10-9 to 1.2 × 10-4 mol L-1uric acid with a correlation coefficient of 0.9 and a detection limit of 1.8 × 10-10 mol L-1. The method was used satisfactorily for the assessment of the uric acid in a number of serum samples collected from various patients with Hypouricemia disease.
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Affiliation(s)
- S G Hashem
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - M M Elsaady
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - H G Afify
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - W E Omer
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Egypt
| | - A O Youssef
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - Maged El-Kemary
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Egypt
| | - M S Attia
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt.
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5
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Attia M, Youssef A, Khan ZA, Abou-Omar M. Alpha fetoprotein assessment by using a nano optical sensor thin film binuclear Pt-2-aminobenzimidazole-Bipyridine for early diagnosis of liver cancer. Talanta 2018; 186:36-43. [DOI: 10.1016/j.talanta.2018.04.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 11/26/2022]
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6
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Lo YH, Gabbaï FP. Controlling the Properties of a 2,2′-bipy–Platinum Dichloride Complex via Oxidation of a Peripheral Stibine Moiety. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00296] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ying-Hao Lo
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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7
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Zhang Y, Zhang ZX, Wang Y, Li H, Bai FQ, Zhang HX. The effect of the embedded o-carborane ligand on the photophysical properties of a cyclometalated Pt(ii) complex: a theoretical investigation. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00071a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The embedded o-carborane ligands will have an impact on the photophysical properties and quantum efficiency of these highly efficient blue phosphorescent materials.
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Affiliation(s)
- Yu Zhang
- Laboratory of Theoretical and Computational Chemistry
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
| | - Zhi-Xiang Zhang
- Laboratory of Theoretical and Computational Chemistry
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
| | - Yu Wang
- Laboratory of Theoretical and Computational Chemistry
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
| | - Hui Li
- Laboratory of Theoretical and Computational Chemistry
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
| | - Fu-Quan Bai
- Laboratory of Theoretical and Computational Chemistry
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
| | - Hong-Xing Zhang
- Laboratory of Theoretical and Computational Chemistry
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
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8
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Chemouri H, Mekelleche SM. Theoretical Investigation of the Kinetic Effect of the 1-Ethylpyridinium Trifluoroacetate Ionic Liquid in the Acceleration of Diels–Alder Reactions of Isoprene with Acrylic Acid and Acrylonitrile. PROGRESS IN REACTION KINETICS AND MECHANISM 2017. [DOI: 10.3184/146867817x14954764850342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The mechanism, the regioselectivity, the stereoselectivity and the kinetics of Diels–Alder reactions of isoprene with acrylic acid and acrylonitrile have been studied, at the B3PW91/6-31G(d,p) level of theory, both in the gas phase and in the presence of organic [dichloromethane (DCM)] and ionic liquid [1-ethylpyridinium trifluoroacetate (EPTFA)] solvents. Intrinsic reaction coordinate calculations show that these reactions take place through an asynchronous concerted mechanism leading to the endo para cycloadducts as the major products in the gas phase and to the exo para cycloadducts as the major products both in organic and in ionic liquid solvents. The explicit solvation model involving the coordination of one molecule of the solvent with the dienophiles shows a considerable decrease of the activation energy when passing from DCM to EPTFA. The enhancement of these cycloaddition reactions can be explained by the strong hydrogen bonding created between the ion pair of the ionic liquid and the oxygen atom of the dienophile reagents. Moreover, density functional theory-based reactivity indices also show an increase of the reaction polarity and consequently of the reaction rate, when replacing DCM solvent by EPTFA solvent. The results obtained give evidence that the ionic liquid EPTFA is an excellent solvent for Diels–Alder reactions in comparison with conventional organic solvents.
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Affiliation(s)
- Hafida Chemouri
- Laboratory of Applied Thermodynamics and Molecular Modelling N° 53, Department of Chemistry, Faculty of Science, University A. Belkaïd, BP 119, Tlemcen, 13000, Algeria
- Preparing School in Sciences and Techniques of Tlemcen, BP 165 RP Bel Horizon, 13000, Tlemcen, Algeria
| | - Sidi Mohamed Mekelleche
- Laboratory of Applied Thermodynamics and Molecular Modelling N° 53, Department of Chemistry, Faculty of Science, University A. Belkaïd, BP 119, Tlemcen, 13000, Algeria
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9
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Zhang W, Wang J, Xu Y, Li W, Shen W. Fine tuning phosphorescent properties of platinum complexes via different N -heterocyclic-based CˆNˆN ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Attia M, Al-Radadi NS. Nano optical sensor binuclear Pt-2-pyrazinecarboxylic acid –bipyridine for enhancement of the efficiency of 3-nitrotyrosine biomarker for early diagnosis of liver cirrhosis with minimal hepatic encephalopathy. Biosens Bioelectron 2016; 86:406-412. [DOI: 10.1016/j.bios.2016.06.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/22/2016] [Accepted: 06/22/2016] [Indexed: 01/09/2023]
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11
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Du J, Luo Y, Xie X, Hu W, Shen W. Tuning the electronic and photophysical properties of platinum(II) complexes through ancillary ligand modification: a theoretical study. MOLECULAR SIMULATION 2016. [DOI: 10.1080/08927022.2016.1168523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Junhong Du
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
| | - Yafei Luo
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
| | - Xiaohua Xie
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
| | - Wuhong Hu
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, P.R. China
| | - Wei Shen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
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12
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Zhang XP, Liu FQ, Lai JC, Li CH, Li AM, You XZ. Novel redox responsive chiral cyclometalated platinum(ii) complexes with pinene functionalized C^N^N ligands. NEW J CHEM 2016. [DOI: 10.1039/c5nj02932e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A couple of unprecedented platinum(iv) complexes have been facilely prepared, and distinct chiroptical performances are exhibited.
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Affiliation(s)
- Xiao-Peng Zhang
- State Key Laboratory of Pollution Control and Resource Reuse
- School of the Environment
- Nanjing University
- Nanjing 210046
- People’s Republic of China
| | - Fu-Qiang Liu
- State Key Laboratory of Pollution Control and Resource Reuse
- School of the Environment
- Nanjing University
- Nanjing 210046
- People’s Republic of China
| | - Jian-Cheng Lai
- State Key laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing university
- Nanjing 210093
| | - Cheng-Hui Li
- State Key laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing university
- Nanjing 210093
| | - Ai-Min Li
- State Key Laboratory of Pollution Control and Resource Reuse
- School of the Environment
- Nanjing University
- Nanjing 210046
- People’s Republic of China
| | - Xiao-Zeng You
- State Key laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing university
- Nanjing 210093
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13
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Zhang W, Luo Y, Xu Y, Tian L, Li M, He R, Shen W. The electronic structures and photophysical properties of platinum complexes with C^N^N ligands: the influence of the carborane substituent. Dalton Trans 2015; 44:18130-7. [DOI: 10.1039/c5dt02110c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Introduction ofo-carborane leads to a significant blue-shifted emission band and an obviously-higher electroluminescence efficiencyviasystemic and in-depth theoretical studies.
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Affiliation(s)
- Wenting Zhang
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
| | - Yafei Luo
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
| | - Yanyan Xu
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
| | - Li Tian
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
| | - Ming Li
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
| | - Rongxing He
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
| | - Wei Shen
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P.R. China
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14
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Georgieva I, Trendafilova N, Dodoff N. Effect of the metal⋯metal interactions on the absorption properties of Pt(II) and Pd(II) complexes of glyoxilic acid oxime in solution and solid state: Theoretical and experimental study. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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López‐Banet L, Santana MD, García G, Piernas MJ, García L, Pérez J, Calderón‐Casado A, Barandika G. Crystal Structures and Spectroscopic and Theoretical Properties of Pentacoordinate Nickel(II) Complexes Containing Tris(pyrazolyl)borate and Quinolinate Ligands. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Luisa López‐Banet
- Universidad de Murcia, Regional Campus of International Excellence “Campus Mare Nostrum” Dpto. Química Inorgánica, 30071 Murcia, Spain, Fax: +34‐868‐887458, http://www.um.es/
| | - M. Dolores Santana
- Universidad de Murcia, Regional Campus of International Excellence “Campus Mare Nostrum” Dpto. Química Inorgánica, 30071 Murcia, Spain, Fax: +34‐868‐887458, http://www.um.es/
| | - Gabriel García
- Universidad de Murcia, Regional Campus of International Excellence “Campus Mare Nostrum” Dpto. Química Inorgánica, 30071 Murcia, Spain, Fax: +34‐868‐887458, http://www.um.es/
| | - M. José Piernas
- Universidad de Murcia, Regional Campus of International Excellence “Campus Mare Nostrum” Dpto. Química Inorgánica, 30071 Murcia, Spain, Fax: +34‐868‐887458, http://www.um.es/
| | - Luis García
- Universidad Politécnica de Cartagena, Dpto. Ingeniería Minera, Geológica y Cartográfica (Área de Química Inorgánica), 30203 Cartagena (Murcia), Spain, http://www.upct.es/
| | - José Pérez
- Universidad Politécnica de Cartagena, Dpto. Ingeniería Minera, Geológica y Cartográfica (Área de Química Inorgánica), 30203 Cartagena (Murcia), Spain, http://www.upct.es/
| | - Ainhoa Calderón‐Casado
- Departamento de Mineralogía y Petrología, Facultad de Ciencia y Tecnología, Apdo. 644, 48080 Bilbao, Spain, http://www.ehu.es/p200‐home/es
| | - Gotzone Barandika
- Departamento de Química Inorgánica, Facultad de Farmacia, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria‐Gasteiz, Spain, http://www.ehu.es/p200‐home/es
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16
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Zhao SS, Shi LL, Su ZM, Geng Y, Zhao L. TD-DFT studies on electronic and spectral properties of platinum(II) complexes with phenol and pyridine groups. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-2138-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Zhu X, Liu J, Zhang D, Liu C. Theoretical illustration on the catalytic effect of alanine methyl ester nitrate ionic liquid on the Diels–Alder reaction between cyclopentadiene and methacrylate. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Sun H, Tian X, Wang J, Zhang J, Yuan Y, Sun ZR. Theoretical studies on molecular and structures of mono- and binuclear chromium carbazole derivatives for optoelectronics. J Phys Chem A 2011; 115:14495-501. [PMID: 22040158 DOI: 10.1021/jp2066452] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Studies on the molecular geometries, electronic properties and second-order nonlinearities of a series of mono- and binuclear chromium carbazole complexes: (N-vinylcarbazole)Cr(CO)(3) (M1), (N-vinylcarbazole)Cr(CO)(2)PPh(3) (M2), (CO)(3)Cr(N-vinylcarbazole)Cr(CO)(3) (B1), and (CO)(3)Cr(N-vinylcarbazole)Cr(CO)(2)PPh(3) (B2) were carried out, using the density functional theory (DFT) at the B3LYP//LanL2DZ/6-31G(d) level. The experimental singlet metal-to-ligand charge transfer ((1)MLCT) spectra of these complexes can also be well simulated and discussed by the time-dependent DFT (TDDFT) at the B3LYP//LanL2DZ/6-311+G(d) level associated with the polarizable continuum model (PCM). The computational results show that an unusual characteristic of chromium carbazole structures is explained in terms of interaction between frontier molecular orbitals of the metal and its ligands. The highest occupied molecular orbitals (HOMOs) of these complexes are composed of a set of distorted degenerated Cr 3d orbitals, whereas the lowest unoccupied molecular orbitals (LUMOs) are predominantly the N-vinylcarbazole ligand π* orbitals. The HOMO-LUMO energy gaps decrease in the order NVC > M1 > B1 > M2 > B2. The considerable coupling between the carbazole and (CO)(3) in M1 creates an asymmetric environment about the chromium atom, leading to modest second-order responses. The PPh(3) ligand is acting as a donor which increases the donating strength of the d(π) orbitals in chromium carbazole species, resulting in the large electronic asymmetry in M2. As for the binuclear chromium carbazole chromophores, a wide-range (1)MLCT band and large oscillator strength are found, allowing for the electronic interactions between two metal centers which can be modified by altering the ligand bound to the metals to induce peculiar asymmetry. Essentially, Cr(CO)(3) acceptor and Cr(CO)(2)PPh(3) donor units in B2 make significant contribution to the charge-transfer process or NLO responses via conventional push-pull chromophoric architecture.
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Affiliation(s)
- Haitao Sun
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
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Li XJ, Sun SL, Ma NN, Sun XX, Yang GC, Qiu YQ. Theoretical investigations on electronic spectra and the redox-switchable second-order nonlinear optical responses of rhodium(I)-9,10-phenanthrenediimine complexes. J Mol Graph Model 2011; 33:19-25. [PMID: 22138015 DOI: 10.1016/j.jmgm.2011.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Revised: 11/04/2011] [Accepted: 11/07/2011] [Indexed: 10/15/2022]
Abstract
The redox-switchable second-order nonlinear optical (NLO) properties of a series of Rh(I) complexes have been studied based on density functional theory (DFT) calculations. The analysis of the electronic structure shows that the Rh(I) ion acts as the oxidation center in a one-electron-oxidized process, while both the Rh(I) ion and the 9,10-phenanthrenediimine (phdi) ligand act as reduction centers in a one-electron-reduced process. Different redox centers lead to different charge-transfer (CT) features, which alter the static first hyperpolarizabilities of the neutral complexes. Our DFT calculations indicated that these complexes show large second-order NLO responses and that the redox process can significantly enhance these NLO responses. For complexes 2 and 3, the β(tot) values of the one-electron-reduced species 2(-) and the one-electron-oxidized species 3(+) are ~10.0 and ~8.5 times larger, respectively, than those of the corresponding neutral complexes. Therefore, complexes 2 and 3 are promising candidates for redox-switchable NLO molecular materials. The large NLO responses of the oxidized species are mainly related to ligand-to-ligand charge-transfer (LLCT) transitions when combined with intraligand charge-transfer (ILCT) transitions, while the results for the reduced species are strongly associated with metal-to-ligand charge-transfer (MLCT) transitions.
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Affiliation(s)
- Xiao-Juan Li
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, People's Republic of China
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Ma N, Liu C, Qiu Y, Sun S, Su Z. Theoretical investigation on redox-switchable second-order nonlinear optical responses of push-pull Cp*CoEt2C2B4H3-expanded (metallo)porphyrins. J Comput Chem 2011; 33:211-9. [DOI: 10.1002/jcc.21966] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 08/05/2011] [Accepted: 09/15/2011] [Indexed: 11/07/2022]
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Zhou X, Zhang H, Pan Q. The first principle study on the spectra of FPt monomer and its excimer. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4267-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Murray P, Jack L, McInnes EJL, Yellowlees LJ. Determining the site of reduction of 4-NO2-2,2′-bipyridine and [Pt(4-NO2-2,2′-bipyridine)Cl2]. Dalton Trans 2010; 39:4179-85. [DOI: 10.1039/b923171d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Yang BZ, Zhou X, Liu T, Bai FQ, Zhang HX. Theoretical Studies on Structures and Spectroscopic Properties of Cyclometalated Gold(III) Complexes. J Phys Chem A 2009; 113:9396-403. [DOI: 10.1021/jp810965d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bao-Zhu Yang
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Xin Zhou
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Tao Liu
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Fu-Quan Bai
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Hong-Xing Zhang
- State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
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Shi LL, Li T, Zhao SS, Li H, Su Z. The effect of phenyl group on the electronic and phosphorescent properties of cyclometalated analogues of platinum(II) terpyridine complexes: a theoretical study. Theor Chem Acc 2009. [DOI: 10.1007/s00214-009-0573-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Electronic structures and optical properties of neutral substituted fluorene-based cyclometalated platinum(II)–acetylide complexes: A DFT exploration. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.01.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Huang L, Zhong AG, Chen DB, Liang HD. Synthesis, structure, spectroscopic properties, and theoretical studies of a new blue/green luminescent complex: [Cd2Cl4(Hbm)2]n·nH2O (Hbm=1H-benzimidazol-2-ylmethanol). J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.12.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Scarpaci A, Monnereau C, Hergué N, Blart E, Legoupy S, Odobel F, Gorfo A, Pérez-Moreno J, Clays K, Asselberghs I. Preparation and characterization of second order non-linear optical properties of new “push–pull” platinum complexes. Dalton Trans 2009:4538-46. [DOI: 10.1039/b900282k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ion-pair charge transfer complexes with intense near IR absorption: Syntheses, crystal structures, electronic spectra and DFT calculations. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.06.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liao Y, Ma J. Stacking and Solvent Effects on the Electronic and Optical Properties of Gold and Mercury Acetylide Aggregations: A Theoretical Study. Organometallics 2008. [DOI: 10.1021/om8001697] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Liao
- School of Chemistry and Chemical Engineering, Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, Nanjing University, Nanjing, 210093, People's Republic of China, and Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Jing Ma
- School of Chemistry and Chemical Engineering, Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, Nanjing University, Nanjing, 210093, People's Republic of China, and Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
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Clark M, Diring S, Retailleau P, McMillin D, Ziessel R. Spectroscopic Properties of Orthometalated Platinum(II) Bipyridine Complexes Containing Various Ethynylaryl Groups. Chemistry 2008; 14:7168-79. [DOI: 10.1002/chem.200701975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Stokes ST, Grubisic A, Li X, Ko YJ, Bowen KH. Photoelectron spectroscopy of the parent anions of the nucleotides, adenosine-5'-monophosphate and 2'deoxyadenosine-5'-monophosphate. J Chem Phys 2008; 128:044314. [PMID: 18247956 DOI: 10.1063/1.2823001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The parent anions of the nucleotides, adenosine-5(')-monophosphate (AMPH) and 2(')deoxyadenosine-5(')-monophosphate (dAMPH) were generated in a novel source and their photoelectron spectra recorded with 3.49 eV photons. Vertical detachment energy (VDE) and the adiabatic electron affinity (EA(a)) values were extracted from each of the two spectra. Concurrently, Kobylecka et al. [J. Chem. Phys. 128, 044315 (2008)] conducted calculations which explored electron attachment to dAMPH. Based on the agreement between their calculated and our measured VDE and EA(a) values, we conclude that the dAMPH(-) anions studied in these experiments were formed by electron-induced, intramolecular, (barrier-free) proton-transfer as predicted by the calculations. Given the similarities between the photoelectron spectra of dAMPH(-) and AMPH(-), it is likely that AMPH(-) can be described in the same manner.
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Affiliation(s)
- Sarah T Stokes
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA
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De Crisci AG, Lough AJ, Multani K, Fekl U. 9,10-Dihydroplatinaanthracenes with Aromatic Diimine Ligands: Syntheses and Spectroscopic and Computational Studies of New Luminescent Materials. Organometallics 2008. [DOI: 10.1021/om700997v] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Antonio G. De Crisci
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road N, Mississauga, Ontario, Canada L5L 1C6, and X-ray Crystallography Lab, University of Toronto St. George, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Alan J. Lough
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road N, Mississauga, Ontario, Canada L5L 1C6, and X-ray Crystallography Lab, University of Toronto St. George, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Kanwarpal Multani
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road N, Mississauga, Ontario, Canada L5L 1C6, and X-ray Crystallography Lab, University of Toronto St. George, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Ulrich Fekl
- Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road N, Mississauga, Ontario, Canada L5L 1C6, and X-ray Crystallography Lab, University of Toronto St. George, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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