Electron spin resonance spectra of nitric oxide adsorbed on zeolites
Electron spin resonance spectra of nitric oxide adsorbed on zeolites
复制标题
沸石吸附一氧化氮的电子自旋共振谱
DOI：
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复制
发表时间：
1970
期刊：
影响因子：
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通讯作者：
M. Weinberger
中科院分区：
文献类型：
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作者：
C. Gardner;M. Weinberger
翻译后摘要：电子自旋共振（e.s.r.）测定了77K下Linde 4A、5A、13X和氢型丝光沸石上NO的吸附光谱。没有紧急救援。在硅胶上观察到NO信号。通过使用多晶样品的线形的表达式，假设轴对称g张量，并考虑到各向同性耦合和线宽推导出一个迭代过程。从这些，晶体场分裂，δ，2p π水平，成为非简并吸附，进行了计算。通过将Delta与四极矩的非轴向分量与相应的电场梯度的相互作用相关联，估计沸石的表面场的非轴向分量。（作者）
Abstract : Electron spin resonance (e.s.r.) spectra of NO adsorbed on the 4 zeolites Linde 4A, 5A, 13X, and hydrogen mordenite were measured at 77K. No e.s.r. signal was observed for NO on silica gel. By use of expressions for the line shapes of polycrystalline samples, assuming axially symmetric g-tensors, and taking into account also isotropic coupling and line width were derived by an iterative procedure. From these, the crystal field splitting, Delta, of the 2p pi levels, which become non-degenerate on adsorption, were calculated. By relating Delta to the interaction of the non-axial components of the quadrupole moment with the corresponding electric field gradients, the non-axial component of the latter is estimated for the surface fields of the zeolites. (Author)