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Volumn 12, Issue 3, 2006, Pages 877-886

Pulsed Gradient Spin Echo (PGSE) diffusion measurements as a tool for the elucidation of a new type of hydrogen-bonded bicapsular aggregate

Author keywords

Diffusion; Hydrogen bonds; NMR spectroscopy; Self assembly; Structure elucidation

Indexed keywords

AMINES; DIMERS; HYDROGEN BONDS; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; SELF ASSEMBLY; SOLUTIONS; THERMODYNAMIC STABILITY; UREA;

EID: 30744446726     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200500021     Document Type: Article
Times cited : (20)

References (67)
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    • B = Boltzman constant, T = temperature in degrees Kelvin, η = viscosity of the solution (for diluted solutions, the viscosity of the solvent can be used), and r = hydrodynamic radius (the radius of a hypothetical hard sphere that diffuses with the same speed as the particle under examination). See: J. T. Edward, J. Chem. Educ. 1970, 47, 261-270.
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    • Edward, J.T.1
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    • note
    • 3v symmetries would be observed).
  • 59
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    • note
    • These masses are not isotopic but averaged due to the low resolution of the equipment in the range of 800-4000 Da. For 2a the calculated values for the averaged masses of the protonated dimer and monomer are 1366 and 2732, respectively. For 2b the calculated values are 1535 and 3069, respectively. Although the spectrometer was calibrated before the measurements, there is a slight difference (2-4 Da) between the calculated and the experimental values, which may due to technical problems encountered with the equipment in this mass range.
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    • note
    • 6]DMSO the monomer/dimer equilibrium remains slow on the NMR timescale.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.