由于ZPL位于斯托克斯峰与反斯托克斯峰中间，使得发射峰由两个分离的峰变成完整的峰。这种材料可作为植物生长照明LED灯中的近红外光部分。图3 (a) LAMG:Mn4+(x=0-0.4)荧光粉的拉曼光谱，(b) MO6八面体的扭曲程度，(c) EPR图谱，(d) Mg2+-Ge4+掺杂量对Mn4+周围配位环境的影响。图4 77 K下，LAMG:M...
The trigonal EPR spectrum consists of one very anisotropic fine structure transition with six well-resolved hyperfine components. An analysis of the spectra recorded at X and Q bands shows that the zero field splitting is larger than the electronic Zeeman interaction.By comparing a theoretical ...
总之,该原位EPR实验的结果首次揭示:在O阴离子的氧化和还原过程中,Na2Mn3O7中局域电子结构的演变是高度可逆的。图3展示了后续四个电化学循环的原位EPR谱图,其高电压平台时间相对缩短,但其谱图结果与首圈电化学循环一致,均再现了高电...
“自还原”是掺入基质的高价态激活离子在没有还原性气氛下被还原为低价态的离子。该研究团队选择具有刚性网状类钙钛矿结构化合物NaZn(PO3)3为基质,在其中掺入MnO2,空气中烧结后制备出的发光材料完全表现为Mn2+的发光性质,EPR检测结果表明所制备发光材料中的掺入离子为Mn2+(图1)。为了进一步确定空气中烧结后生成的...
采用探针实验、自由基捕获实验和EPR测试识别了压电/Mn3O4-CN/亚氯酸盐体系内的活性物质,该体系存在·O2-、h+、 e-、1O2、·OH、Mn(IV)和ClO2七种活性物质,且与单纯的压电体系和单纯的亚氯酸盐体系相比,该体系的活性物质种类...
构建了四方八面体(MnO6)8-络离子g因子和零场分裂D的完全高阶微扰公式.在这些公式中,除了中心离子Mn4+和配体离子O2-自旋-轨道耦合对g因子和D的贡献(双SO耦合参数模型)外,也考虑了荷移激发态(与电荷转移谱有关)与基态混合对EPR参量的贡献.用此公式算得SnTiO3:Mn4+的g因子和D与实验值较一致.而单SO耦合...
The native S2 multiline EPR signal and its NH3-bound and calcium-depleted forms were previously simulated using standard Hamiltonian methods that required the fitting of four hyperfine tensors and a g tensor.1,2 These simulations indicated that the S2 st
We compare high frequency single crystal electron paramagnetic resonance (EPR) data for monomeric and dimeric Mn4 complexes where, in the case of the latter, intra-dimer exchange interactions are known to significantly alter the low temperature quantum behavior. The monomeric system exhibits typical si...
图2. (A) Mn3O4和Ru-Mn3O4的Mn 2p XPS光谱;(B) Mn3O4和Ru-Mn3O4的O 1s XPS光谱;(C) Ru-Mn3O4的Ru 3d XPS光谱;(D) Mn3O4和Ru-Mn3O4催化剂的 EPR 光谱;(E) Ru-Mn3O4、Ru箔和RuO2的Ru K-edge XANES光谱;(F) Ru-Mn3O4、Ru箔和RuO2的Ru K-edge EXAFS光谱的k3加权傅里叶变...
Herein, we use parallel-mode electron paramagnetic resonance (EPR) spectroscopy to characterize the Mn3+ photoproduct, which exists as a ternary complex with carbonate at the high-affinity assembly site (in the absence of Ca2+) formulated as [CO3-Mn3+-apo-WOC-PSII]. The EPR-derived ...