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Volumn 112, Issue 24, 2008, Pages 5515-5526

Solvent effects on the local structure of p-nitroaniline in supercritical water and supercritical alcohols

Author keywords

[No Author keywords available]

Indexed keywords

NITROGEN COMPOUNDS; SOLVENTS;

EID: 53349128004     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp710530m     Document Type: Article
Times cited : (33)

References (71)
  • 9
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    • 1999, 110, 8000.
    • (1999) , vol.8000 , Issue.110
  • 51
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    • Frisch, M. J, Trucks, G. W, Schlegel, H. B, Scuseria, G. E, Robb, M. A, Cheeseman, J. R, Montgomery, J. A, Jr, Vreven, T, Kudin, K. N, Burant, J. C, Millam, J. M, Iyengar, S. S, Tomasi, J, Barone, V, Mennucci, B, Cossi, M, Scalmani, G, Rega, N, Petersson, G. A, Nakatsuji, H, Hada, M, Ehara, M, Toyota, K, Fukuda, R, Hasegawa, J, Ishida, M, Nakajima, T, Honda, Y, Kitao, O, Nakai, H, Kiene, M, Li, X, Knox, J. E, Hratchian, H. P, Cross, J. B, Bakken, V, Adamo, C, Jaramillo, J, Gomperts, R, Stratmann, R. E, Yazyev, O, Austin, A. J, Cammi, R, Pomelli, C, Ochterski, J. W, Ayala, P. Y, Morokuma, K, Voth, G. A, Salvador, P, Dannenberg, J. J, Zakrzewski, V. G, Dapprich, S, Daniels, A. D, Strain, M. C, Farkas, O, Malick, D. K, Rabuck, A. D, Raghavachari, K, Foresman, J. B, Ortiz, J. V, Cui, Q, Baboul, A. G, Clifford, S, Cioslowski, J, Stefanov, B. B, Liu, G, Liashenko, A, Piskorz, P, Komaromi, I, Martin, R. L, Fox, D. J, Kei
    • Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Montgomery, J. A., Jr.; Vreven, T.; Kudin, K. N.; Burant, J. C.; Millam, J. M.; Iyengar, S. S.; Tomasi, J.; Barone, V.; Mennucci, B.; Cossi, M.; Scalmani, G.; Rega, N.; Petersson, G. A.; Nakatsuji, H.; Hada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; Hasegawa, J.; Ishida, M.; Nakajima, T.; Honda, Y. ; Kitao, O.; Nakai, H.; Kiene, M.; Li, X.; Knox, J. E.; Hratchian, H. P.; Cross, J. B.; Bakken, V.; Adamo, C.; Jaramillo, J.; Gomperts, R.; Stratmann, R. E.; Yazyev, O.; Austin, A. J.; Cammi, R.; Pomelli, C.; Ochterski, J. W.; Ayala, P. Y.; Morokuma, K.; Voth, G. A.; Salvador, P.; Dannenberg, J. J.; Zakrzewski, V. G.; Dapprich, S.; Daniels, A. D.; Strain, M. C.; Farkas, O.; Malick, D. K.; Rabuck, A. D.; Raghavachari, K.; Foresman, J. B.; Ortiz, J. V.; Cui, Q.; Baboul, A. G.; Clifford, S.; Cioslowski, J.; Stefanov, B. B.; Liu, G.; Liashenko, A.; Piskorz, P.; Komaromi, I.; Martin, R. L.; Fox, D. J.; Keith, T.; Al-Laham, M. A.; Peng, C. Y.; Nanayakkara, A.; Challacombe, M.; Gill, P. M. W.; Johnson, B.; Chen, W.; Wong, M. W.; Gonzalez, C.; Pople, J. A. Gaussian 03; Gaussian, Inc.: Wallingford, CT, 2004.
  • 54
    • 53349152098 scopus 로고    scopus 로고
    • 2 group in the PCM calculation.
    • 2 group in the PCM calculation.
  • 61
    • 53349174589 scopus 로고    scopus 로고
    • It is to be noted that the observed temperature dependence of the relative intensity of the NO2 stretching modes in water is a little different from that in alcohols. In water, the lower-frequency band is weaker than the higher-frequency band under ambient conditions. This phenomenon is observed only under a resonance condition. The lower-frequency band in water is dominant under a non-resonant condition, as in the case of alcohols. 44 In resonant conditions, the weaker band on the lower-frequency side appears to increase slightly up to 473 K, and then decreases gradually with increasing temperature. We conclude that the anomaly for the relative intensity change of the NO2 stretching modes up to 473 K may reflect the structural change of the excited state of pNA in water
    • 2 stretching modes up to 473 K may reflect the structural change of the excited state of pNA in water
  • 63
    • 53349119112 scopus 로고    scopus 로고
    • 2 stretching mode is dependent on the basis set, although the general trends for different basis sets are not greatly different. When the 6-311G(d,p) basis set was used for the calculation of the clusters, mode 28 was significantly split in some conformations as a result of mixing with another benzene ring deformation. On the other hand, the result using the 6-31G(d) basis set agrees with the observed spectra, although similar splitting occurs to a small extent. We also checked the solvent species dependence on the calculation using pNA-methanol clusters. The results are similar to those for pNA-water clusters (see Supporting Information)
    • 2 stretching mode is dependent on the basis set, although the general trends for different basis sets are not greatly different. When the 6-311G(d,p) basis set was used for the calculation of the clusters, mode 28 was significantly split in some conformations as a result of mixing with another benzene ring deformation. On the other hand, the result using the 6-31G(d) basis set agrees with the observed spectra, although similar splitting occurs to a small extent. We also checked the solvent species dependence on the calculation using pNA-methanol clusters. The results are similar to those for pNA-water clusters (see Supporting Information)
  • 64
    • 53349107785 scopus 로고    scopus 로고
    • -1, which was about half the shift for 6-31G(d).
    • -1, which was about half the shift for 6-31G(d).
  • 65
    • 53349142333 scopus 로고    scopus 로고
    • The interpolated value of η at 538 K is plotted in Figure 11.
    • The interpolated value of η at 538 K is plotted in Figure 11.
  • 67
    • 53349163616 scopus 로고    scopus 로고
    • -1 shift (see details in Supporting Information).
    • -1 shift (see details in Supporting Information).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.