On the basis that the chemical shifts are affected by conformation through the electronic structure around the nuclei of interest, the chemical shift difference between the crystalline and amorphous phases is explained by the 纬- gauche effect. In the crystalline phase, the methylene group takes a ...
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The phenylmethanethiolates nonuniformly distribute on the NC surface (Fig. 3a, b, d, e): 18 of them distribute in the middle section of the NC, which appears to be the torso of a millipede, and the left 18 phenylmethanethiolates dispersedly distribute on both sides similar to the feet ...
atomic distances (i.e.,long-range order). Examples of crystalline solids includemetals and ceramics. Crystalline solids are in contrast to amorphous/noncrystalline materials, whose atoms or ions are not arranged in long-range repeating 3D patterns.Liquid wateris a representative material of this ...
The crystalline–noncrystalline structure and chain conformation of thermotropic liquid crystalline polyester (BB-8), composed of mesogenic biphenyl and spacer CHsequence units, have been characterized by high-resolution solid-stateC NMR spectroscopy. The sample was crystallized by cooling from the melt ...
Background Respirable crystalline silica (silicon dioxide; SiO2, quartz) particles are known to induce chronic inflammation and lung disease upon long-term inhalation, whereas non-crystalline (amorphous) SiO2 particles in the submicrometre range are regarded as less harmful. Several reports have demonstr...
athe noncrystalline,colorless,sili glass combiness a very low thermal expansion coefficient with excellent optical qualities and exceptional transmittance in the ultraviolet. 非晶形,无色, sili玻璃combiness一个非常低热扩散系数以优秀光学质量和例外透射率在紫外。[translate]...
The meaning of NONCRYSTALLINE is not composed of crystals : not crystalline. How to use noncrystalline in a sentence.
The meaning of MACROCRYSTALLINE is consisting of or having crystals large enough to be determined by the eye or a simple lens.