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Takagi K, Nishikawa Y, Shimizu K, Nobuke K, Yamakado R, Sugimoto S, Inai Y. Synthesis and Structure of Optically Active Oligo( N
-substituted- m
-benzamide)s Bearing a Bithiophene Chromophore on the Benzene Ring. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Koji Takagi
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
| | - Yuma Nishikawa
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
| | - Kana Shimizu
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
| | - Katsuya Nobuke
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
| | - Ryohei Yamakado
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
| | - Shinri Sugimoto
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
| | - Yoshihito Inai
- Prof. K. Takagi, Y. Nishikawa, K. Shimizu, K. Nobuke, Dr. R. Yamakado , S. Sugimoto, Prof. Y. Inai; Graduate School of Engineering; Nagoya Institute of Technology, Gokiso, Showa; Nagoya 466-8555 Japan
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2
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Chelating properties of EDTA-type ligands containing six-membered backbone ring toward copper ion: Structure, EPR and TD-DFT evaluation. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.12.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Gupta SK, Anjana C, Sen N, Butcher RJ, Jasinski JP, Golen JA. An unusual hydroxy-substituted mononuclear nickel(II) complex with a tetradentate Schiff base: Synthesis, spectroscopy, electrochemistry, crystallography, DNA binding, and theoretical investigation. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.01.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Alonzo J, Kochemba WM, Pickel DL, Ramanathan M, Sun Z, Li D, Chen J, Sumpter BG, Heller WT, Kilbey SM. Assembly and organization of poly(3-hexylthiophene) brushes and their potential use as novel anode buffer layers for organic photovoltaics. NANOSCALE 2013; 5:9357-9364. [PMID: 23955069 DOI: 10.1039/c3nr02226a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Buffer layers that control electrochemical reactions and physical interactions at electrode/film interfaces are key components of an organic photovoltaic cell. Here the structure and properties of layers of semi-rigid poly(3-hexylthiophene) (P3HT) chains tethered at a surface are investigated, and these functional systems are applied in an organic photovoltaic device. Areal density of P3HT chains is readily tuned through the choice of polymer molecular weight and annealing conditions, and insights from optical absorption spectroscopy and semiempirical quantum calculation methods suggest that tethering causes intrachain defects that affect co-facial π-stacking of brush chains. Because of their ability to modify oxide surfaces, P3HT brushes are utilized as an anode buffer layer in a P3HT-PCBM (phenyl-C₆₁-butyric acid methyl ester) bulk heterojunction device. Current-voltage characterization shows a significant enhancement in short circuit current, suggesting the potential of these novel nanostructured buffer layers to replace the PEDOT:PSS buffer layer typically applied in traditional P3HT-PCBM solar cells.
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Affiliation(s)
- José Alonzo
- Biology and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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5
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Sumpter BG, Meunier V. Can computational approaches aid in untangling the inherent complexity of practical organic photovoltaic systems? ACTA ACUST UNITED AC 2012. [DOI: 10.1002/polb.23075] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Abe A, Nakano T, Yamashita W, Fukukawa K, Okazaki M, Tamai S. Theoretical and Experimental Studies on the Mechanism of Coloration of Polyimides. Chemphyschem 2011; 12:1367-77. [DOI: 10.1002/cphc.201000835] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 02/18/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Atsutoshi Abe
- Computational Science Unit, Material Science Laboratory, Mitsui Chemicals, Inc. 580‐32 Nagaura, Sodegaura, Chiba 299‐0265 (Japan), Fax: (+81) 438‐64‐2378
| | - Takashi Nakano
- Computational Science Unit, Material Science Laboratory, Mitsui Chemicals, Inc. 580‐32 Nagaura, Sodegaura, Chiba 299‐0265 (Japan), Fax: (+81) 438‐64‐2378
| | - Wataru Yamashita
- New Materials Development Center, Mitsui Chemicals, Inc. 580‐32 Nagaura, Sodegaura, Chiba 299‐0265 (Japan)
| | - Kenichi Fukukawa
- New Materials Development Center, Mitsui Chemicals, Inc. 580‐32 Nagaura, Sodegaura, Chiba 299‐0265 (Japan)
| | - Masaki Okazaki
- New Materials Development Center, Mitsui Chemicals, Inc. 580‐32 Nagaura, Sodegaura, Chiba 299‐0265 (Japan)
| | - Shoji Tamai
- New Materials Development Center, Mitsui Chemicals, Inc. 580‐32 Nagaura, Sodegaura, Chiba 299‐0265 (Japan)
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7
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Andzelm J, Rinderspacher BC, Rawlett A, Dougherty J, Baer R, Govind N. Performance of DFT Methods in the Calculation of Optical Spectra of TCF-Chromophores. J Chem Theory Comput 2009; 5:2835-46. [DOI: 10.1021/ct900231r] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Andzelm
- U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, Institute of Chemistry and Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Berend C. Rinderspacher
- U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, Institute of Chemistry and Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Adam Rawlett
- U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, Institute of Chemistry and Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Joseph Dougherty
- U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, Institute of Chemistry and Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Roi Baer
- U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, Institute of Chemistry and Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Niranjan Govind
- U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, Institute of Chemistry and Fritz Haber Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel, and William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352
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8
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Holland JP, Green JC. Evaluation of exchange-correlation functionals for time-dependent density functional theory calculations on metal complexes. J Comput Chem 2009; 31:1008-14. [DOI: 10.1002/jcc.21385] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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9
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Electronic absorption spectroscopy and time-dependent density functional theory calculations on the nickel(II) complex of 1,4-bis(pyrrol-2-ylmethyleneamino)butane. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.04.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Holland JP, Aigbirhio FI, Betts HM, Bonnitcha PD, Burke P, Christlieb M, Churchill GC, Cowley AR, Dilworth JR, Donnelly PS, Green JC, Peach JM, Vasudevan SR, Warren JE. Functionalized Bis(thiosemicarbazonato) Complexes of Zinc and Copper: Synthetic Platforms Toward Site-Specific Radiopharmaceuticals. Inorg Chem 2006; 46:465-85. [PMID: 17279826 DOI: 10.1021/ic0615628] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two new types of unsymmetrical bis(thiosemicarbazone) proligands and their neutral zinc(II) and copper(II) complexes have been synthesized. These bifunctional ligands both chelate the metal ions and provide pendent amino groups that can be readily functionalized with biologically active molecules. Functionalization has been demonstrated by the synthesis of three water-soluble glucose conjugates of the new zinc(II) bis(thiosemicarbazonato) complexes, and their copper(II) analogues have been prepared in aqueous solution via transmetalation. A range of techniques including NMR, electron paramagnetic resonance, cyclic voltammetry, high-performance liquid chromatography (HPLC), UV/vis, and fluorescence emission spectroscopy have been used to characterize the complexes. Four compounds, including two zinc(II) complexes, have been characterized by X-ray crystallography. The connectivity and conformation of the glucose conjugates have been assigned by NMR spectroscopy. Time-dependent density functional theory calculations have been used to assign the electronic transitions of the copper(II) bis(thiosemicarbazonato) chromophore. Two copper-64-radiolabeled complexes, including one glucose conjugate, have been prepared and characterized using radio-HPLC, and transmetalation is shown to be a viable method for radiolabeling compounds with copper radionuclides. Preliminary cell washout studies have been performed under normoxic conditions, and the uptake and intracellular distribution have been studied using confocal fluorescence microscopy.
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Affiliation(s)
- Jason P Holland
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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11
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Maurel F, Aubard J, Millie P, Dognon JP, Rajzmann M, Guglielmetti R, Samat A. Quantum Chemical Study of the Photocoloration Reaction in the Napthoxazine Series. J Phys Chem A 2006; 110:4759-71. [PMID: 16599444 DOI: 10.1021/jp054976f] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ab initio and semiempirical quantum mechanical calculations were performed to study the electronic spectra of spiroxazine photochromic compounds as well as the corresponding photoisomers. Ground-state geometries were optimized based on density functional theory (DFT). Excitation energies of the different forms were calculated using the time-dependent density functional theory (TD-DFT) method. Semiempirical calculations including configuration interactions were performed to detail the mechanism of ring opening in excited states. On the basis of the obtained potential energy profile, a complete mechanism of photocoloration able to clarify some experimental findings is provided. A correlation of the experimental quantum yield of photocoloration with the calculated properties as a function of substituent effects is proposed.
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Affiliation(s)
- F Maurel
- Laboratoire Interfaces, Traitements, Organisation et DYnamique des Systèmes, ITODYS, Université de Paris 7-Denis Diderot, UMR 7086, 1 rue Guy de la Brosse 75005 Paris, France.
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12
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Di Donato M, Peluso A, Villani G. Electron Transfer between Quinones in Photosynthetic Reaction Centers. J Phys Chem B 2004. [DOI: 10.1021/jp036678t] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mariangela Di Donato
- Dipartimento di Chimica, Università di Salerno, I-84081 Baronissi, Salerno, Italy,and Istituto per i Processi Chimico Fisici, IPCF, CNR, via G. Moruzzi 1, I-56124, Pisa, Italy
| | - Andrea Peluso
- Dipartimento di Chimica, Università di Salerno, I-84081 Baronissi, Salerno, Italy,and Istituto per i Processi Chimico Fisici, IPCF, CNR, via G. Moruzzi 1, I-56124, Pisa, Italy
| | - Giovanni Villani
- Dipartimento di Chimica, Università di Salerno, I-84081 Baronissi, Salerno, Italy,and Istituto per i Processi Chimico Fisici, IPCF, CNR, via G. Moruzzi 1, I-56124, Pisa, Italy
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13
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Kwasniewski SP, François JP, Deleuze MS. Effect of Thermal Motions on the Structure and UV−Visible Electronic Spectra of Stilbene and Model Oligomers of Poly(p-Phenylene Vinylene). J Phys Chem A 2003. [DOI: 10.1021/jp021853b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. P. Kwasniewski
- Limburgs Universitair Centrum, Instituut voor Materiaal Onderzoek, Departement SBG, Universitaire Campus, Gebouw D, B-3590 Diepenbeek, Belgium
| | - J. P. François
- Limburgs Universitair Centrum, Instituut voor Materiaal Onderzoek, Departement SBG, Universitaire Campus, Gebouw D, B-3590 Diepenbeek, Belgium
| | - M. S. Deleuze
- Limburgs Universitair Centrum, Instituut voor Materiaal Onderzoek, Departement SBG, Universitaire Campus, Gebouw D, B-3590 Diepenbeek, Belgium
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14
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Elmacı N, Yurtsever E. Thermochromism in Oligothiophenes: The Role of the Internal Rotation. J Phys Chem A 2002. [DOI: 10.1021/jp026768i] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nuran Elmacı
- Izmir Institute of Technology, Department of Chemistry, Gülbahçeköyü, Urla, İzmir 35437, Turkey
| | - Ersin Yurtsever
- Koç University, Department of Chemistry, Rumeli Feneri Yolu, Sarıyer Istanbul 34450, Turkey
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Fitch WL, McGregor M, Katritzky AR, Lomaka A, Petrukhin R, Karelson M. Prediction of ultraviolet spectral absorbance using quantitative structure-property relationships. JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES 2002; 42:830-40. [PMID: 12132883 DOI: 10.1021/ci010116u] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High performance liquid chromatography (HPLC) with ultraviolet (UV) spectrophotometric detection is a common method for analyzing reaction products in organic chemistry. This procedure would benefit from a computational model for predicting the relative response of organic molecules. Models are now reported for the prediction of the integrated UV absorbance for a diverse set of organic compounds using a quantitative structure-property relationship (QSPR) approach. A seven-descriptor linear correlation with a squared correlation coefficient (R2) of 0.815 is reported for a data set of 521 compounds. Using the sum of ZINDO oscillator strengths in the integration range as an additional descriptor allowed reduction in the number of descriptors producing a robust model for 460 compounds with five descriptors and a squared correlation coefficient 0.857. The descriptors used in the models are discussed with respect to the physical nature of the UV absorption process.
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Gierschner J, Mack HG, Lüer L, Oelkrug D. Fluorescence and absorption spectra of oligophenylenevinylenes: Vibronic coupling, band shapes, and solvatochromism. J Chem Phys 2002. [DOI: 10.1063/1.1469612] [Citation(s) in RCA: 252] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Hoshiba T, Ida T, Mizuno M, Otsuka T, Takaoka K, Endo K. C-13 NMR chemical shifts and visible absorption spectra of unsymmetrical fluoran dye by MO calculations. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00700-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Nozary H, Piguet C, Rivera JP, Tissot P, Bernardinelli G, Vulliermet N, Weber J, Bünzli JC. Extended rodlike polyaromatic receptors with bent tridentate units complexed to lanthanide metal ions. Inorg Chem 2000; 39:5286-98. [PMID: 11154587 DOI: 10.1021/ic000338u] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A synthetic strategy is developed to attach semirigid lipophilic sidearms to the 6-positions of bent aromatic tridentate 2,6-bis(benzimidazol-2-yl)pyridine cores to produce U-shaped ligands, L6,7. Differential scanning calorimetry (DSC) reveals that entropic contributions severely affect the isotropization processes of these flexible receptors, but no mesomorphism is detected. The attachment of oxygen linkers to the 5- or 6-positions of the benzimidazole sidearms lowers the ligand-centered 1 pi pi* and 3 pi pi* excited states, and the semiempirical ZINDO method assigns this effect to a destabilization of the HOMO orbitals resulting from pi-interactions. Reactions of L6 with Ln(NO3)3.xH2O provide the rodlike 1:1 complexes [Ln(L6)(NO3)3] (Ln = La-Lu), which are stable in the solid state but partially dissociate in acetonitrile. The crystal structure of [Lu(L6)(NO3)3].CH3CN (18a, LuC63H84N9O13, monoclinic, P2(1)/n, Z = 4) reveals an I-shaped arrangement of the ligand strand arising from the meridional complexation of the bent tridentate unit to nine-coordinate Lu(III). The replacement of nitrate anions with trifluoroacetate anions gives the centrosymmetric dimer [Lu(L6)(CF3CO2)3]2 (23, Lu2C134H162N10O20F18, triclinic, P1, Z = 1), in which the symmetry-related Lu atoms are connected by two bridging carboxylates, leading to an H-shaped dimetallic edifice. These complexes [Ln(L6)(NO3)3] and [Ln(L6)(CF3CO2)3]2 fulfill the geometrical criteria required by precursors of calamitic metallomesogens, but no mesomorphism can be detected, while photophysical studies indicate that the low energies of ligand-centered 3 pi pi* excited states drastically limit the luminescence of Eu(III) complexes. The relationships between structural and electronic properties resulting from 5- or 6-substitutions of the benzimidazole rings and the effects of these substitutions on photophysical and thermal properties are discussed.
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Affiliation(s)
- H Nozary
- Department of Inorganic, Analytical, and Applied Chemistry, Department of Physical Chemistry, and Laboratory for X-ray Crystallography, University of Geneva, CH-1211 Geneva 4, Switzerland
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Coutinho K, Canuto S, Zerner MC. A Monte Carlo-quantum mechanics study of the solvatochromic shifts of the lowest transition of benzene. J Chem Phys 2000. [DOI: 10.1063/1.481624] [Citation(s) in RCA: 136] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takaoka K, Maeda S, Miura H, Otsuka T, Endo K, Chong DP. Theoretical Valence Photoelectron and UV-visible Absorption Spectra of Four Stable Conductive Molecules Obtained by MO Calculations. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2000. [DOI: 10.1246/bcsj.73.43] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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