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Volumn 69, Issue 13, 2004, Pages

First-principles study of salicylideneaniline molecular crystals: Tautomerization reaction involving intermolecular hydrogen bonds

Author keywords

[No Author keywords available]

Indexed keywords

HYDROGEN; SALICYLALDEHYDE; SALICYLIDENEANILINE; UNCLASSIFIED DRUG;

EID: 42749099753     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.69.134205     Document Type: Article
Times cited : (22)

References (44)
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    • Molecular Electronics: Science and Technology, edited by A. Aviram and M. Ratner (The New York Academy of Sciences, New York, 1998).
    • (1998) Molecular Electronics: Science and Technology
  • 4
    • 0003464709 scopus 로고    scopus 로고
    • edited by J.C. Crano and R.J. Guglielmetti (Plenum Press, New York)
    • Organic Photochromic and Thermochromic Compounds, edited by J.C. Crano and R.J. Guglielmetti (Plenum Press, New York, 1999).
    • (1999) Organic Photochromic and Thermochromic Compounds
  • 5
    • 0004240038 scopus 로고    scopus 로고
    • edited by B.L. Feringa (Wiley-VCH, Weinheim)
    • Molecular Switches, edited by B.L. Feringa (Wiley-VCH, Weinheim, 2001).
    • (2001) Molecular Switches
  • 17
    • 33646648275 scopus 로고    scopus 로고
    • The ABINIT code (URL: http://www.abinit.org/) is a common project of the Université Catholique de Louvain, Coming Incorporated, the Université de Liège, the Commissariat à l'Energie Atomique, Mitsubishi Chemical Corporation and other contributors.
  • 26
    • 33646639057 scopus 로고    scopus 로고
    • note
    • 3, R =0.045, and GOF=1.129. Note that the occupancy of the trans-keto molecule was converged to 0.104 (2).
  • 32
    • 33646657172 scopus 로고    scopus 로고
    • note
    • 3) have also been calculated; the NH-form molecule is less stable than the OH-form molecule by 13.2 kcal/mol. We notice that the energy difference between the one-molecular case of the OH (NH) form and the corresponding isolated molecule in the cubic unit cell is about 2.4 kcal/mol (1.2 kcal/mol), respectively. This slight difference, which almost appears the order of the "chemical accuracy" (Ref. 22), may come from the effect of the limited size of the cubic cells. Due to the limitation of our compuational resource for larger supercells and the inability for van der Waals interaction in the present exchange-correlation functional, the reliable estimation of the cohesive energies was beyond our present study; the cohesive energies have not been experimentally known, either. Thus the present authors focus on the intermolecular interaction by comparison between twice the energy for one-molecular case and the energy of two-molecular case, expecting the same conditions of the k-point sampling of the Brillouin zone as well as the cancellation of the van der Waals interactions between the two forms.
  • 36
    • 0141991888 scopus 로고    scopus 로고
    • A. Kokalj, J. Mol. Graphics Modell. 17, 176 (1999); A. Kokalj, Comput. Mater. Sci. 28, 155 (2003).
    • (2003) Comput. Mater. Sci. , vol.28 , pp. 155
    • Kokalj, A.1
  • 37
    • 33646657929 scopus 로고    scopus 로고
    • note
    • 60 face-centered cubic (fcc) solid greatly depends on the choice of k point for one-point samplings of the Brillouin zone; 4.72 for (1/2, 1/2, 1/2) while 5.64 for Γ point within local density approximation. It should be noted that the point (1/2, 1/2, 1/2) is the special k point of fcc cells for the one-point sampling (Ref. 42). Experimental evaluation of the dielectric constant is reported as 4.4 in Ref. 43.
  • 38
    • 33646664694 scopus 로고    scopus 로고
    • note
    • From the present GAUSSIAN98 calculation, the HOMO-LUMO gap of the enol form is 0.128 18 a.u., while that of the trans-keto form is 0.10061 a.u.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.