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Fluorescence sensing of Al3+ by an anthracene appended piperidone. Hindrance in excimer formation offered by β-cyclodextrin complexation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137551] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2
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Catalán J. On dimers and complexes of tetracene and the Kasha's molecular excitonic model. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Javier Catalán
- Departamento de Quimica Fisica Aplicada; Universidad Autónoma de Madrid; 28049 Madrid Spain
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3
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Kabanda MM, Ebenso EE. MP2, DFT and DFT-D study of the dimers of diazanaphthalenes: a comparative study of their structures, stabilisation and binding energies. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2013.852191] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Takeuchi H. Structures, stability, and growth sequence patterns of small homoclusters of naphthalene, anthracene, phenanthrene, phenalene, naphthacene, and pyrene. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.06.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Demetriou M, Krasia-Christoforou T. Well-defined diblock copolymers possessing fluorescent and metal chelating functionalities as novel macromolecular sensors for amines and metal ions. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24977] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Kim M, Hohman JN, Cao Y, Houk KN, Ma H, Jen AKY, Weiss PS. Creating favorable geometries for directing organic photoreactions in alkanethiolate monolayers. Science 2011; 331:1312-5. [PMID: 21393542 DOI: 10.1126/science.1200830] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The products of photoreactions of conjugated organic molecules may be allowed by selection rules but not observed in solution reactions because of unfavorable reaction geometries. We have used defect sites in self-assembled alkanethiolate monolayers on gold surfaces to direct geometrically unfavorable photochemical reactions between individual organic molecules. High conductivity and stochastic switching of anthracene-terminated phenylethynylthiolates within alkanethiolate monolayers, as well as in situ photochemical transformations, have been observed and distinguished with the scanning tunneling microscope (STM). Ultraviolet light absorbed during imaging increases the apparent heights of excited molecules in STM images, a direct manifestation of probing electronically excited states.
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Affiliation(s)
- Moonhee Kim
- California NanoSystems Institute and Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Steele RP, DiStasio Jr RA, Head-Gordon M, Li Y, Galli G. The 1,4-phenylenediisocyanide dimer: gas-phase properties and insights into organic self-assembled monolayers. Phys Chem Chem Phys 2010; 12:82-96. [DOI: 10.1039/b902194a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Kunsági-Máté S, Iwata K. Effect of cluster formation of solvent molecules on the preferential solvatation of anthracene in binary alcoholic solutions. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.03.084] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Dreger ZA, Balasubramaniam E, Gupta YM, Joly AG. High-Pressure Effects on the Electronic Structure of Anthracene Single Crystals: Role of Nonhydrostaticity. J Phys Chem A 2009; 113:1489-96. [DOI: 10.1021/jp808247k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Z. A. Dreger
- Institute for Shock Physics, Washington State University, Pullman, Washington 99164
| | - E. Balasubramaniam
- Institute for Shock Physics, Washington State University, Pullman, Washington 99164
| | - Y. M. Gupta
- Institute for Shock Physics, Washington State University, Pullman, Washington 99164
| | - A. G. Joly
- Pacific Northwestern National Laboratory, Richland, Washington 99352
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10
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Podeszwa R, Szalewicz K. Physical origins of interactions in dimers of polycyclic aromatic hydrocarbons. Phys Chem Chem Phys 2008; 10:2735-46. [DOI: 10.1039/b719725j] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Gilliéron C, Sharma N, Nauta K, Schmidt TW. Structure of the Naphthalene Dimer from Rare Gas Tagging. J Phys Chem A 2007; 111:4211-4. [PMID: 17447737 DOI: 10.1021/jp0687504] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Excitation spectra of naphthalene dimer-argonn (n = 1-3) clusters are obtained by resonance enhanced multiphoton ionization time-of-flight mass spectroscopy. The spectra are generally independent of the number of attached argon atoms and reveal sharp structures which are fitted by superimposing independent monomer spectra. It is concluded that the rare-gas tagging technique reveals the presence of a T-shaped naphthalene dimer chromophore in the molecular beam.
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Cooper TM, Krein DM, Burke AR, McLean DG, Rogers JE, Slagle JE. Asymmetry in Platinum Acetylide Complexes: Confinement of the Triplet Exciton to the Lowest Energy Ligand. J Phys Chem A 2006; 110:13370-8. [PMID: 17165861 DOI: 10.1021/jp0654516] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To determine structure-optical property relationships in asymmetric platinum acetylide complexes, we synthesized the compounds trans-Pt(PBu3)2(C[triple bond]CC6H5)(C[triple bond]C-C6H4-C[triple bond]CC6H5) (PE1-2), trans-Pt(PBu3)2(C[triple bond]CC6H5)(C[triple bond]C-C6H4-C[triple bond]C-C6H4-C[triple bond]CC6H5) (PE1-3) and trans-Pt(PBu3)2(C[triple bond]C-C6H4-C[triple bond]CC6H5)(C[triple bond]C-C6H4-C[triple bond]C-C6H4-C[triple bond]CC6H5) (PE2-3) that have different ligands on either side of the platinum and compared their spectroscopic properties to the symmetrical compounds PE1, PE2 and PE3. We measured ground state absorption, fluorescence, phosphorescence and triplet state absorption spectra and performed density functional theory (DFT) calculations of frontier orbitals, lowest lying singlet states, triplet state geometries and energies. The absorption and emission spectra give evidence the singlet exciton is delocalized across the central platinum atom. The phosphorescence from the asymmetric complexes comes from the largest ligand. Time-dependent (TD) DFT calculations show the S1 state has mostly highest occupied molecular orbital (HOMO) --> lowest unoccupied molecular orbital (LUMO) character, with the LUMO delocalized over the chromophore. In the asymmetric chromophores, the LUMO resides on the larger ligand, suggesting the S1 state has interligand charge transfer character. The triplet state geometries obtained from the DFT calculations show distortion on the lowest energy ligand, whereas the other ligand has the ground state geometry. The calculated trend in the triplet state energies agrees very well with the experimental trend. Calculations of triplet state spin density also show the triplet exciton is confined to one ligand. In the asymmetric complexes the spin density is confined to the largest ligand. The results show Kasha's rule applies to these complexes, where the triplet exciton moves to the lowest energy ligand.
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Affiliation(s)
- Thomas M Cooper
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, USA.
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13
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Zhang X, Sasaki K, Kuroda Y. Syntheses and Photophysical Studies of Cyclodextrin Derivatives with Two Proximate Anthracenyl Groups. J Org Chem 2006; 71:4872-7. [PMID: 16776515 DOI: 10.1021/jo060449w] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A series of permethylated cyclodextrin derivatives, cyclodextrin dimers doubly bridged with two anthracene moieties (An2CD2) and singly bridged with one (AnCD2) and the monomer bearing two anthracene moieties (An2CD), were newly synthesized. For An2CD2, the two isomeric forms are also identified. All compounds are soluble in both aqueous and various organic solvents. The bisanthracene systems, An2CD2 and An2CD, show the thermal equilibrium in an aqueous solution between the intramolecularly interacting (closed) and less-interacting (open) states of the anthracene moieties, which results in the temperature-dependent absorption changes. These systems also show the characteristic excimer emission that is enhanced in water and weakened in organic solvents. The excitation spectra for the monomer and excimer fluorescence are found to be quite different from each other and similar to the absorption spectra of the open and the closed forms, respectively. The observed unique parallelism between excitation and absorption spectra for the present excimer systems indicates the dual ground state-dual excitation scheme where the excitation state formed from the closed ground state mainly gives excimer. The fluorescence lifetime analyses reveal that the rates of the conversion from the excited state of the open form to that of the closed one (6.0 x 10(6) s(-1) for An2CD2-2) are largely retarded compared with that of the ethyleneoxy linked bisanthracene system (8.8 x 10(7) s(-1)).
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Affiliation(s)
- Xiaoyong Zhang
- Department of Polymer Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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14
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Saeki M, Akagi H, Fujii M. Theoretical Study on the Structure and the Frequency of Isomers of the Naphthalene Dimer. J Chem Theory Comput 2006; 2:1176-83. [DOI: 10.1021/ct050278n] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Morihisa Saeki
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Hiroshi Akagi
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Masaaki Fujii
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
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15
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Holliday BJ, Ulmann PA, Mirkin CA, Stern CL, Zakharov LN, Rheingold AL. Systematic Study of the Role of Ligand Structure in the Formation of Homobinuclear Rhodium Macrocycles Formed via the Weak-Link Approach. Organometallics 2004. [DOI: 10.1021/om030611a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Electrostatics-guided ab initio studies on weakly bonded complexes of substituted naphthalenes. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2003.11.099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Das A, Nandi CK, Chakraborty T. Structure and electronic spectroscopy of naphthalene–acenaphthene van der Waals dimer: Hole-burning, dispersed fluorescence, and quantum chemistry calculations. J Chem Phys 2003. [DOI: 10.1063/1.1569476] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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18
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Spies C, Lorenc A, Gehrke R, Kricheldorf HR. Charge Transfer Interactions of N-(4-Carboxyphenyl)trimellitimide Dibutyl Ester. J Phys Chem A 2003. [DOI: 10.1021/jp021560i] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. Spies
- Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronensynchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - A. Lorenc
- Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronensynchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - R. Gehrke
- Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronensynchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - H. R. Kricheldorf
- Institut für Technische und Makromolekulare Chemie, Universität Hamburg, Bundesstr. 45, 20146 Hamburg, Germany
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On the equilibrium geometries of anthracene trimer and naphthalene tetramer: comparison of the exp-6-1 and HFD structure predictions with experiment. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00528-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Piuzzi F, Dimicoli I, Mons M, Millié P, Brenner V, Zhao Q, Soep B, Tramer A. Spectroscopy, dynamics and structures of jet formed anthracene clusters. Chem Phys 2002. [DOI: 10.1016/s0301-0104(01)00534-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Gonzalez C, Allison TC, Lim EC. Hartree−Fock Dispersion Probe of the Equilibrium Structures of Small Microclusters of Benzene and Naphthalene: Comparison with Second-Order MØeller−Plesset Geometries. J Phys Chem A 2001. [DOI: 10.1021/jp012341k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carlos Gonzalez
- Physical and Chemistry Properties Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, and Department of Chemistry, The University of Akron, Akron, Ohio 44325-3601
| | - Thomas C. Allison
- Physical and Chemistry Properties Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, and Department of Chemistry, The University of Akron, Akron, Ohio 44325-3601
| | - Edward C. Lim
- Physical and Chemistry Properties Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, and Department of Chemistry, The University of Akron, Akron, Ohio 44325-3601
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Moscovitch M, Phillips GW. Radiation dosimetry using three-dimensional optical random access memories. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS 2001; 184:207-218. [PMID: 11863031 DOI: 10.1016/s0168-583x(01)00693-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Three-dimensional optical random access memories (3D ORAMs) are a new generation of high-density data storage devices. Binary information is stored and retrieved via a light induced reversible transformation of an ensemble of bistable photochromic molecules embedded in a polymer matrix. This paper describes the application of 3D ORAM materials to radiation dosimetry. It is shown both theoretically and experimentally, that ionizing radiation in the form of heavy charged particles is capable of changing the information originally stored on the ORAM material. The magnitude and spatial distribution of these changes are used as a measure of the absorbed dose, particle type and energy. The effects of exposure on 3D ORAM materials have been investigated for a variety of particle types and energies, including protons, alpha particles and 12C ions. The exposed materials are observed to fluoresce when exposed to laser light. The intensity and the depth of the fluorescence is dependent on the type and energy of the particle to which the materials were exposed. It is shown that these effects can be modeled using Monte Carlo calculations. The model provides a better understanding of the properties of these materials. which should prove useful for developing systems for charged particle and neutron dosimetry/detector applications.
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Affiliation(s)
- M Moscovitch
- Department of Radiation Medicine, Georgetown University Medical Center, Washington, DC 20007, USA.
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Das A, Mahato KK, Chakraborty T. Jet spectroscopy of van der Waals dimers of 1-methoxynaphthalene: A laser induced fluorescence study. J Chem Phys 2001. [DOI: 10.1063/1.1366642] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Das A, Mahato KK, Chakraborty T. Observation of exciplex emission from the mixed dimer of naphthalene and 2-methoxynaphthalene: A laser-induced fluorescence study in supersonic jet. J Chem Phys 2001. [DOI: 10.1063/1.1355659] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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26
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Gonzalez C, Lim EC. Ab Initio Study of the Intermolecular Interactions in Small Benzene Clusters: The Equilibrium Structures of Trimer, Tetramer, and Pentamer. J Phys Chem A 2001. [DOI: 10.1021/jp0015776] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Carlos Gonzalez
- Physical and Chemical Properties Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
| | - Edward C. Lim
- Department of Chemistry, The University of Akron, Akron, Ohio 44325-3601
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