3
|
Coe BJ, Avramopoulos A, Papadopoulos MG, Pierloot K, Vancoillie S, Reis H. Theoretical modelling of photoswitching of hyperpolarisabilities in ruthenium complexes. Chemistry 2013; 19:15955-63. [PMID: 24123546 PMCID: PMC4068215 DOI: 10.1002/chem.201301380] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Indexed: 11/17/2022]
Abstract
Static excited-state polarisabilities and hyperpolarisabilities of three RuII ammine complexes are computed at the density functional theory (DFT) and several correlated ab initio levels. Most accurate modelling of the low energy electronic absorption spectrum is obtained with the hybrid functionals B3LYP, B3P86 or M06 for the complex [RuII(NH3)5(MeQ+)]3+ (MeQ+=N-methyl-4,4′-bipyridinium, 3) in acetonitrile. The match with experimental data is less good for [RuII(NH3)5L]3+ (L=N-methylpyrazinium, 2; N-methyl-4-{E,E-4-(4-pyridyl)buta-1,3-dienyl}pyridinium, 4). These calculations confirm that the first dipole- allowed excited state (FDAES) has metal-to-ligand charge-transfer (MLCT) character. Both the solution and gas-phase results obtained for 3 by using B3LYP, B3P86 or M06 are very similar to those from restricted active-space SCF second-order perturbation theory (RASPT2) with a very large basis set and large active space. However, the time-dependent DFT λmax predictions from the long-range corrected functionals CAM-B3LYP, LC-ωPBE and wB97XB and also the fully ab initio resolution of identity approximate coupled-cluster method (gas-phase only) are less accurate for all three complexes. The ground state (GS) two-state approximation first hyperpolarisability β2SA for 3 from RASPT2 is very close to that derived experimentally via hyper-Rayleigh scattering, whereas the corresponding DFT-based values are considerably larger. The β responses calculated by using B3LYP, B3P86 or M06 increase markedly as the π-conjugation extends on moving along the series 2→4, for both the GS and FDAES species. All three functionals predict substantial FDAES β enhancements for each complex, increasing with the π-conjugation, up to about sevenfold for 4. Also, the computed second hyperpolarisabilities γ generally increase in the FDAES, but the results vary between the different functionals.
Collapse
Affiliation(s)
- Benjamin J Coe
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL (UK).
| | | | | | | | | | | |
Collapse
|
4
|
Pang Y, Prantil MA, Van Tassle AJ, Jones GA, Fleming GR. Excited-State Dynamics of 8′-Apo-β-caroten-8′-al and 7′,7′-Dicyano-7′-apo-β-carotene Studied by Femtosecond Time-Resolved Infrared Spectroscopy. J Phys Chem B 2009; 113:13086-95. [DOI: 10.1021/jp905758e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoonsoo Pang
- Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - Matthew A. Prantil
- Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - Aaron J. Van Tassle
- Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - Garth A. Jones
- Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - Graham R. Fleming
- Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| |
Collapse
|
5
|
Alvarez-Valtierra L, Pratt DW. Rotationally resolved electronic spectra of 9,10-dihydrophenanthrene. A “floppy” molecule in the gas phase. J Chem Phys 2007; 126:224308. [PMID: 17581055 DOI: 10.1063/1.2732753] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Rotationally resolved fluorescence excitation spectra of several bands in the S1<--S0 electronic spectrum of 9,10-dihydrophenanthrene (DHPH) have been observed and assigned. Each band was fit using rigid rotor Hamiltonians in both electronic states. Analyses of these data reveal that DHPH has a nonplanar configuration in its S0 state with a dihedral angle between the aromatic rings (phi) of approximately 21.5 degrees. The data also show that excitation of DHPH with UV light results in a more planar structure of the molecule in the electronically excited state, with phi approximately 8.5 degrees. Three prominent Franck-Condon progressions appear in the low resolution spectrum, all with fundamental frequencies lying below 300 cm(-1). Estimates of the potential energy surfaces along each of these coordinates have been obtained from analyses of the high resolution spectra. The remaining barrier to planarity in the S1 state is estimated to be approximately 2650 cm(-1) along the bridge deformation mode and is substantially reduced by excitation of the molecule along the (orthogonal) ring twisting coordinate.
Collapse
|
6
|
Saltiel J, Wang S. The photochemistry and photophysics of all-trans-1,4-diindanylidenyl-2-butene, a rigid analogue of all-trans-1,6-diphenyl-1,3,5-hexatriene. Photochem Photobiol Sci 2006; 5:883-95. [PMID: 17019466 DOI: 10.1039/b608065k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
all-trans-1,4-Diindanylidenyl-2-butene (ttt-stiff-5-DPH), a torsionally constrained analogue of all-trans-1,6-diphenyl-1,3,5-hexatriene (ttt-DPH), was synthesized and studied in order to evaluate the role of phenyl-vinyl torsional motions in the photophysical and photochemical responses of the DPH chromophore. Spectroscopic and photoisomerization measurements reveal that the behavior of the rigid DPH analogue is very similar to that of the parent DPH. This similarity is obtained despite the fact that the alkyl substitution from the five-membered rings selectively lowers the energy of the 1 (1)B(u)* state, leading to inversion of the order of the 1 (1)B(u)* and 2 (1)A(g)* energy levels in hydrocarbon solvents. In stiff-5-DPH, as in DPH, an increase in solvent polarity enhances terminal over central bond photoisomerization. Analyses of fluorescence and photoisomerization quantum yields show that, as in DPH, the torsional relaxation channel on the singlet excited state manifold is inefficient, falling far short of accounting for all radiationless decay. Significant (approximately 50 and 80% of all singlet decay in Bz and AN, respectively), photochemically unproductive, radiationless decay channels exist in both molecules. Competing one bond photoisomerizations give the two major photoproducts: tct-stiff-5-DPH and ctt-stiff-5-DPH. They were isolated in pure form and were spectroscopically characterized. Biacetyl-sensitization was used to study the behavior of the stiff-5-DPH triplet state. As in the parent DPH, stiff-5-DPH triplets undergo relatively efficient concentration dependent geometric photoisomerization.
Collapse
Affiliation(s)
- Jack Saltiel
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, USA.
| | | |
Collapse
|
7
|
Saltiel J, Krishnamoorthy G, Huang Z, Ko DH, Wang S. Photoisomerization of all-trans-1,6-Diphenyl-1,3,5-hexatriene. Temperature and Deuterium Isotope Effects. J Phys Chem A 2002. [DOI: 10.1021/jp021540g] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jack Saltiel
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390
| | | | - Zhennian Huang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390
| | - Dong-Hoon Ko
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390
| | - Shujun Wang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390
| |
Collapse
|
8
|
Cheng WD, Wu DS, Zhang H, Chen JT. Enhancement of Third-Order Nonlinear Response in Excited State of Metallophthalocyanines (PcM; M = H2, Mg, Ni). J Phys Chem B 2001. [DOI: 10.1021/jp0121670] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- W.-D. Cheng
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, People's Republic of China
| | - D.-S. Wu
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, People's Republic of China
| | - H. Zhang
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, People's Republic of China
| | - J.-T. Chen
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, State Key Laboratory of Structural Chemistry, Fuzhou, Fujian 350002, People's Republic of China
| |
Collapse
|
9
|
Polívka T, Zigmantas D, Frank HA, Bautista JA, Herek JL, Koyama Y, Fujii R, Sundström V. Near-Infrared Time-Resolved Study of the S1 State Dynamics of the Carotenoid Spheroidene. J Phys Chem B 2001. [DOI: 10.1021/jp002206s] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomáš Polívka
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - Donatas Zigmantas
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - Harry A. Frank
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - James A. Bautista
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - Jennifer L. Herek
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - Yasushi Koyama
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - Ritsuko Fujii
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| | - Villy Sundström
- Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden, Department of Chemistry, University of Connecticut, U-60, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, and Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Uegahara, Nishinomiya 662-8501, Japan
| |
Collapse
|