Anomalous temperature dependencies of the transverse relaxation time T 2, Knight shift and NMR line width in (Y 1- xDy x)Rh 4B 4 are obtained in the temperature region where T 1 changes drastically. The results are discussed in terms of a model of the crystalline electric fields, in which...
Spin relaxation in NMR is known to provide information about the dynamics of molecular entities and possibly about molecular geometry or electron distribution. Generally, dynamical information is obtained if the tensor of the relevant relaxation mechanism is known from independent determinations. Conversely...
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In the previous Q&A we showed how molecular motion of two dipoles could create locally fluctuating magnetic fields resulting in T1 and/or T2 relaxation. A somewhat different way to look at the dipole-dipole interaction with a quantum mechanical bent involving energy levels is presented below. This...
PULSE REPETITION TIMESINVERSION RECOVERYNONLINEAR ESTIMATIONIn this work, taking into consideration waiting time(WT) in successive automatic measurement, the effect of pulse repetition time(TR) on spin-lattice relaxation time (T1) was studied by a FT-NMR spectrometer. Inversion-recovery pulse sequence ...
In vivo 31P nuclear magnetic resonance studies of T1 and T2 relaxation times in rat brain and in rat brain tumors implanted to nude mice 31P NMR spin-lattice ( T 1) and spin-spin ( T 2) relaxation times of phosphocreatine, ATP, inorganic phosphate, and phosphomonoesters have been measure...
ChemInform Abstract: NMR Spin‐Lattice Relaxation Approaches to Characterization of Transition Metal Hydride Complexes in Solutioninorganic chemistry, reviewtransition metalshydrogen, Hmagnetic resonance, nuclear quadrupole resonance (solids and liquids)
来源期刊 PHYSICAL CHEMISTRY CHEMICAL PHYSICS -CAMBRIDGE- ROYAL SOCIETY OF CHEMISTRY 研究点推荐 low-field spin relaxation singlet NMR Sensitivity enhancement 引用走势 2013 被引量:1 站内活动 0 关于我们 百度学术集成海量学术资源,融合人工智能、深度学习、大数据分析等技术,为科研工作者提供全面快捷的学术...
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explain the spin-spin splitting pattern observed in the1H NMR spectrum of a simple organic compound, such as chloroethane or 2-bromopropane. interpret the splitting pattern of a given1H NMR spectrum. determine the structure of a relatively simple organic compound, given its1H NMR spectrum and othe...