Buscar
Mostrando ítems 1-8 de 8
A double-component Anderson-Weiss approach for describing NMR signals of mobile SIn units: application to constant-time DIPSHIFT experiments
(ElsevierAmsterdam, 2014-11)
A composed Gaussian local field is proposed to describe the effect of molecular motions on NMR signals of SIn units (e.g., CHn or NHn), based upon the well-know Anderson–Weiss (AW) approximation. The approach is exemplified ...
Recoupled separated-local-field experiments and applications to study intermediate-regime molecular motions
(ACADEMIC PRESS INC ELSEVIER SCIENCESAN DIEGO, 2012)
A specific separated-local-field NMR experiment, dubbed Dipolar-Chemical-Shift Correlation (DIPSHIFT) is frequently used to study molecular motions by probing reorientations through the changes in XH dipolar coupling and ...
Intermediate motions as studied by solid-state separated local field NMR experiments
(AMER INST PHYSICS, 2008)
In this report, the application of a class of separated local field NMR experiments named dipolar chemical shift correlation (DIPSHIFT) for probing motions in the intermediate regime is discussed. Simple analytical procedures ...
Temperature dependence of molecular dynamics and supramolecular aggregation in MEH-PPV films: A solid-state NMR, X-ray and fluorescence spectroscopy study
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
This article presents an investigation of the temperature induced modification in the microstructure and dynamics of poly[2-methoxy-5-(2`-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) cast films using Wide-Angle X-ray ...
Avoiding bias effects in NMR experiments for heteronuclear dipole-dipole coupling determinations: principles and application to organic semiconductor materials
(Wiley-VCH VerlagWeinheim, 2013-09)
Carbon-proton dipole-dipole couplings between bonded atoms represent a popular probe of molecular dynamics in soft materials or biomolecules. Their site-resolved determination, for example, by using the popular DIPSHIFT ...
Correlations between Conjugation Length, Macromolecular Dynamics, and Photophysics of Phenylene-Vinylene/Aliphatic Multiblock Copolymers
(AMER CHEMICAL SOCWASHINGTON, 2012)
This work reports a detailed spectroscopy study of a series of multiblock conjugated nonconjugated copolymers built by p-phenylene vinylene type units (PV) and octamethylene spacers, namely, poly(1,8-octanedioxy-2,6-dime ...
A solid-state NMR study of the structure and dynamics of the myristoylated N-terminus of the guanylate cyclase-activating protein-2
(Elsevier ScienceAmsterdam, 2010-02)
Guanylate cyclase-activating protein-2 (GCAP-2) is a retinal Ca2+ sensor protein. It plays a central role in shaping the photoreceptor light response and in light adaptation through the Ca2+-dependent regulation of the ...
Correlations between Conjugation Length, Macromolecular Dynamics, and Photophysics of Phenylene-Vinylene/Aliphatic Multiblock Copolymers
(Amer Chemical SocWashington, 2012)