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  • 1995-1999  (136)
  • 1
    Electronic Resource
    Electronic Resource
    Materials Chemistry of Chiral Macromolecules. 2. Solid-State Structures (1995)
    s.l. : American Chemical Society
    Macromolecules 28 (1995), S. 2618-2628 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00112a005
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  • 2
    Electronic Resource
    Electronic Resource
    Molecular constants and Rydberg–Klein–Rees (RKR) potential curve for the Na2 1 3Σg− state (1999)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 3494-3497 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Transitions into the doubly excited Na2 1 3Σg− state have been analyzed using near-dissociation expansions (NDE) to represent the vibrational energies and inertial rotational constants, while the centrifugal distortion constants were held fixed at "mechanically consistent" values calculated from the Rydberg–Klein–Rees (RKR) potential implied by those G(v) and Bv functions. The input data cover the range v=0 to 57 and N up to 47, and the fit yields vD=61.41(±0.10) and D0=3385.70(±0.2) cm−1. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.479858
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  • 3
    Electronic Resource
    Electronic Resource
    Transcription Factors as Targets of Cytokine Signals (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 762 (1995), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1995.tb32329.x
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  • 4
    Electronic Resource
    Electronic Resource
    The 2 3Πg and 3 3Πg states of 7Li2: Optical–optical double resonance spectroscopy and ab initio calculations (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 5898-5903 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The (2p+2p) 2 3Πg and (2s+3p) 3 3Πg states of 7Li2 have been studied both experimentally and theoretically. Vibrational levels v=0–41 of the 2 3Πg state and v=6–10 of the 3 3Πg state have been observed by perturbation facilitated optical–optical double resonance (PFOODR) spectroscopy. Our ab initio calculations show that the 2 3Πg state, although dissociating into 2p+2p atomic limit, is a Rydberg state and strongly mixed with the (2s+3p) 3 3Πg and (2s+3d) 4 3Πg Rydberg states. Our theoretical calculations show good agreement with our experimental results. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470469
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  • 5
    Electronic Resource
    Electronic Resource
    Perturbation facilitated optical–optical double resonance spectroscopy of the 2 3Σ+g, 3 3Σ+g, and 4 3Σ+g Rydberg states of 7Li2 (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 102 (1995), S. 3024-3031 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: This paper reports the experimental observation of the 2 3Σ+g, 3 3Σ+g, and 4 3Σ+g states of 7Li2 by cw perturbation facilitated optical–optical double resonance spectroscopy. Molecular constants and RKR potential curves have been obtained. Our experimental Te and Re for the 2 3Σ+g state are 27 297.45(16) cm−1 and 3.0797(18) A(ring), respectively, and for the 3 3Σ+g state are 31 043.93(53) cm−1 and 3.0378(19) A(ring), respectively. The above values are in very good agreement with theoretical calculations. Hyperfine splitting for both states has been resolved. Both states follow Hund's case (bβS) hyperfine coupling scheme. The experimental Fermi contact parameter, bF, is approximately 96±2 MHz for the 2 3Σ+g state and 95.6±3 MHz for the 3 3Σ+g state. These values are in good agreement with the previously obtained value 98.6±4 MHz [Li et al., J. Chem. Phys. 96, 3342 (1992)]. One level of the 4 3Σ+g state has been observed and its hyperfine structure has been resolved and characterized with Hund's coupling case (bβS). © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.468612
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  • 6
    Electronic Resource
    Electronic Resource
    Doubly excited 1 3∑−g state of Na2: Observation and calculation (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 7213-7217 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The v=0–57 levels of the 3p+3p doubly excited 1 3∑−g state of Na2 have been observed by pulsed perturbation facilitated optical–optical double resonance (PFOODR) fluorescence excitation spectroscopy. The Tv=57=39 943.5 cm−1 of the 1 3∑−g state is 385 cm−1 above the X 2∑+g v+=0, J+=0 ionization threshold and 9 cm−1 below the Na (3p,2P3/2)+Na(3p,2P1/2) dissociation limit. No significant line broadening was observed above the X 2∑+g v+=0, J+=0 ionization threshold with our resolution. Molecular constants and the Rydberg–Klein–Rees (RKR) potential curve have been obtained from the observed data. The major constants are Te=36 519.13(17) cm−1, ωe=93.635(41) cm−1, and Be=0.118 95(90) cm−1. We have carried out an all-electron ab initio calculation for the 1 3∑−g state and transition dipole moment for the 1 3∑−g↔b 3Πu system of Na2. Molecular constants calculated from our ab initio potential curve have reasonable agreement with the experimental constants. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470349
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  • 7
    Electronic Resource
    Electronic Resource
    Communication of Private Information and the Valuation of Initial Public Offerings in Singapore (1998)
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Journal of international financial management & accounting 9 (1998), S. 0 
    Details
    ISSN: 1467-646X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: This study examines a sample of 108 initial public offerings in Singapore between 1987 and 1993, and documents the effects of four channels of entrepreneurial communication, that is, retained ownership, audited report, auditor choice and underwriter choice on the valuation of new issues. Our results indicate that retained ownership and book value of equity are significantly and positively associated with the valuation of initial public offerings in Singapore. Underwriter choice and auditor choice are not significant in explaining the valuation of initial public offerings. Issues listed on the Main Board are valued higher than those on Sesdaq (Stock Exchange of Singapore Dealing and Automated Quotation). Firms choosing the auction system are valued higher than those choosing the fixed system.This paper provides evidence on the valuation of new issues in an emerging market in the Asia-Pacific region. The results are of interest to investors, investment bankers and companies seeking a listing on the Singapore Stock Exchange. We provide some insights on how new issues in the Singapore market are valued.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1467-646X.00031
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  • 8
    Electronic Resource
    Electronic Resource
    Determination of the long-range potential and dissociation energy of the 1 3Δg state of Na2 (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 7240-7254 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The 1 3Δg state of Na2 has been studied extensively by both filtered fluorescence and ionization detection and analyzed by both Dunham-type expansion and near-dissociation expansion (NDE) models in the analysis. Our observations have covered 99.998% of the potential well depth with the outermost Rydberg–Klein–Rees (RKR) turning point at 28.02 A(ring). NDE analysis gives Te=28 032.468 (±0.021) cm−1, De=7162.436 (±0.021) cm−1, and Re=3.463 81 (±0.000 28) A(ring). Significant long-range behavior in the near dissociation levels has been observed. Fitting of the RKR turning points gives the long-range coefficients C5=1.388 (±0.031)×106 cm−1 A(ring)5 and C6=0.4008 (±0.0046)×108 cm−1 A(ring)6. These newly observed results show reasonable agreement with recent theoretical calculations. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470299
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  • 9
    Electronic Resource
    Electronic Resource
    Predissociation of the Na2 4 3Σg+ state (1998)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 108 (1998), S. 7707-7712 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The Na2 4 3Σg+ state dissociates adiabatically to the 3s+4p atomic limit. The vibrational levels of the 4 3Σg+ state below the 3s+3d atomic limit were observed previously by perturbation facilitated optical–optical double resonance (PFOODR) fluorescence excitation spectroscopy. Vibrational levels above the 3s+3d atomic limit are found to be predissociated and transitions into these levels have been observed by detecting atomic Na 3d→3p fluorescence. The predissociation is due to the interaction with the continuum of the 2 3Πg state (direct as well as accidental predissociation via bound vibrational levels of the 3 3Πg state). The potential energy curve of the 4 3Σg+ state has been constructed. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.476206
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  • 10
    Electronic Resource
    Electronic Resource
    State-to-state collision energy transfer of 7Li2 within high-lying triplet states: Gateway effect of mixed levels in energy transfer between singlet and triplet states (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 105 (1996), S. 9859-9863 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: State-to-state collision energy transfer in the 2 3Πg, 3 3Πg, 3 3Σ+g, 1 3Σ−g, and 1 3Δg states and from singlet to triplet states of 7Li2 has been studied experimentally by continuous wave optical–optical double resonance (OODR) resolved fluorescence spectroscopy. Propensity rules of collision-induced transitions within a triplet state have been observed. When a rovibrational (v,J) level of the F 1Σ+g or G 1Πg state was excited by OODR transition, fluorescence from high-lying triplet gerade states to the a 3Σ+u and/or b 3Πu states was always observed. This indicates that population can transfer from F 1Σ+g and G 1Πg states to triplet states by collision. Irrespective of the J of the initially excited singlet level, the most intense fluorescence from the triplet state will occur at the N or J corresponding to that of the F 1Σ+g (and/or G 1Πg)∼3Λg mixed levels. Molecular population moves to the mixed levels and then transfers to the triplet state. This clearly indicates that singlet–triplet mixed levels played the role of a gateway, through which the population moves from singlet to triplet states. The gateway levels can be perturbed levels in the same vibrational level of the F 1Σ+g or G 1Πg state, or the perturbed levels in different vibrational levels. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.472852
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