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Volumn 128, Issue 31, 2006, Pages 10008-10009

Distinct dynamic behaviors of water molecules in hydrated pores

Author keywords

[No Author keywords available]

Indexed keywords

WATER;

EID: 33746957930     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja063223j     Document Type: Article
Times cited : (37)

References (45)
  • 3
    • 0004173349 scopus 로고    scopus 로고
    • Cambridge University Press: Cambridge
    • (c) Aidley, D.; Stanfield, P. Ion Channels; Cambridge University Press: Cambridge, 1996.
    • (1996) Ion Channels
    • Aidley, D.1    Stanfield, P.2
  • 18
    • 0037195604 scopus 로고    scopus 로고
    • (b) Levinger, N. E. Science 2002, 298, 1722-1723.
    • (2002) Science , vol.298 , pp. 1722-1723
    • Levinger, N.E.1
  • 21
    • 0035896421 scopus 로고    scopus 로고
    • (e) Klein, M. L. Science 2001, 291, 2106-2107.
    • (2001) Science , vol.291 , pp. 2106-2107
    • Klein, M.L.1
  • 38
    • 33746947902 scopus 로고    scopus 로고
    • note
    • 2H NMR spectra for 1 show a sharp decrease in structural water mobility in the temperatures range from 253 to 223 K. Accordingly, DSC measurements for 1 show a broad endotherm in the temperature interval, 197-273 K, indicating a higher organization of this type of water molecule when the temperature is lowered (Supporting Information).
  • 42
    • 33746987597 scopus 로고    scopus 로고
    • note
    • 2O is isomorphous with that of the ethyl homologue 1 and has been determined at 293, 170, and 115 K. There is no evidence for phase transition when cooling the sample, and the differences are due to the thermal motion which mainly affects the disordered water molecules inside the pore. The main differences between both structures can be attributed to the size of the monomer appendages, larger in 2 than in 1, that affects the inner size of the pore by narrowing the diameter to 4.2-6.5 Å. The water molecule inside the pore in 2 is disordered over three positions. The one with major occupancy factor (ca. 75% of the cells) and those symmetry-related by the -3 axis form a slightly distorted octahedron. The two positions with minor occupancy factors account for the remaining 25%, one is on the octahedron center while the second one is also positioned on the -3 axis but off the octahedron (Supporting Information).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.