Mostrando 421 - 440 Resultados de 441 Para Buscar '"dosis"', tiempo de consulta: 0.13s Limitar resultados
  1. 421
    “…For the larger decamer atomic force microscopy (AFM), diffusion ordered spectroscopy (DOSY) and vapour pressure osmometric (VPO) measurements consistently indicated that it is of small and defined size. …”
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    “…We used different (27)Al NMR spectroscopic techniques (heteronuclear Overhauser effect spectroscopy (HOESY), exchange spectroscopy (EXSY), diffusion ordered (DOSY)) in this work to gain the information to study the aluminium species in solutions with Al(2)(SO(4))(3) concentrations of 50.0, 5.0, and 0.5 g/L and their pH and time dependent transformation. …”
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  9. 429
    por Singh, Sandhya, Brooker, Sally
    Publicado 2021
    “…X-ray crystal structures show all five Fe(ii) helicates are low spin at 100 K. Importantly, DOSY NMR confirms the intactness of these SCO-active dinuclear helicates in D(3)-MeCN solution, regardless of HS fraction: γ(HS)(298 K) = 0–0.81. …”
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  10. 430
    “…A new lithium diethylzincate, [(TMEDA)LiZn(cis-DMP)Et(2)] (TMEDA=N,N,N′,N′-tetramethylethylenediamine) has been synthesised by co-complexation of Li(cis-DMP), Et(2)Zn and TMEDA, and characterised by NMR (including DOSY) spectroscopy and X-ray crystallography, which revealed a dinuclear contact ion pair arrangement. …”
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  11. 431
    “…On the basis of solution spectroscopic studies (e.g., (1)H NMR, (1)H–(1)H COSY NMR, DOSY NMR, and NOESY NMR), in tandem with mass spectrometric analyses (ESI-MS) and single-crystal X-ray diffraction studies, we conclude that opening up the macrocyclic structure (i.e., converting 1(4+) to 2(2+)) leads to considerable changes in the recognition behavior, with so-called outside binding or weak ion pair interactions, rather than pseudorotaxane formation, being favored both in solution and the solid-state. …”
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  12. 432
    “…The ligands and cages were characterized by (1)H, (13)C and diffusion ordered (DOSY) NMR spectroscopies, high resolution electrospray ionization mass spectrometry (HR-ESIMS) and in the case of the bis-quinoline cage, X-ray crystallography. …”
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  13. 433
    “…NMR relaxation (R(1), R(2)), heteronuclear NOE, and diffusion ordered spectroscopy (DOSY) experiments were analyzed, identifying a monomeric species through the determination of the diffusion coefficients (D) and rotational correlation times (τ(c)). …”
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  18. 438
    “…The analysis of the cross-peaks in NOESY spectra allowed us to assign the dipolar interactions between the given protons in the calculated structures. A DOSY experiment in the solution confirmed the strong binding of a ligand in a binary complex, having a K(a) of 746 mM(−1), which was compared with a K(a) of 3.78 mM(−1) for TPT. …”
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