Semiconductive 2D arrays of pancake-bonded oligomers of partially charged TCNQ radicals [0.03%]
部分带电TCNQ自由基盘式堆积低聚物的半导体二维阵列
Krešimir Molčanov,Valentina Milašinović,Biserka Kojić-Prodić et al.
Krešimir Molčanov et al.
Multicentre two-electron (mc/2e or 'pancake bonding') bonding between 7,7,8,8-tetra-cyano-quinodi-methane (TCNQ) radical anions was studied on its 14 novel salts with planar organic cations. The formal charges of the TCNQδ- moieties are -1...
A novel X-ray diffraction approach to assess the crystallinity of regenerated cellulose fibers [0.03%]
一种新的X射线衍射评估再生纤维素纤维结晶度的方法
Luigi Gentile,Herbert Sixta,Cinzia Giannini et al.
Luigi Gentile et al.
Here, a new accurate approach is presented to quantify the degree of crystallinity of regenerated cellulose textile fibers using wide-angle X-ray scattering. The approach is based on the observation that the contributions to the scattering ...
Structure-property relations of a unique and systematic dataset of 19 isostructural multicomponent apremilast forms [0.03%]
一组独特的系统化数据集中19种等结构多组分阿普米司特形式的结构-性质关系研究
Jan Jirát,Martin Babor,Luděk Ridvan et al.
Jan Jirát et al.
The structure-property relations are examined for apremilast cocrystals and solvates in this work. A unique and large dataset of multicomponent crystal forms is presented including 7 cocrystals and 12 solvates. In total, 15 of the presented...
Reverse-engineering method for XPCS studies of non-equilibrium dynamics [0.03%]
非平衡态动力学研究中的XPCS反向工程方法
Anastasia Ragulskaya,Vladimir Starostin,Nafisa Begam et al.
Anastasia Ragulskaya et al.
X-ray photon correlation spectroscopy (XPCS) is a powerful tool in the investigation of dynamics covering a broad time and length scale. It has been widely used to probe dynamics for systems in both equilibrium and non-equilibrium states; i...
Ambiguous structure determination from powder data: four different structural models of 4,11-di-fluoro-quinacridone with similar X-ray powder patterns, fit to the PDF, SSNMR and DFT-D [0.03%]
基于粉末衍射数据的结构测定：四个类似的4,11-二氟菲啶结构模型及其PDF、SSNMR和DFT-D拟合
Carina Schlesinger,Arnd Fitterer,Christian Buchsbaum et al.
Carina Schlesinger et al.
Four different structural models, which all fit the same X-ray powder pattern, were obtained in the structure determination of 4,11-di-fluoro-quinacridone (C20H10N2O2F2) from unindexed X-ray powder data by a global fit. The models differ in...
How to get maximum structure information from anisotropic displacement parameters obtained by three-dimensional electron diffraction: an experimental study on metal-organic frameworks [0.03%]
从三维电子衍射获得的各向异性位移参数中提取最大结构信息的实验研究——金属有机框架案例分析
Laura Samperisi,Xiaodong Zou,Zhehao Huang
Laura Samperisi
Three-dimensional electron diffraction (3D ED) has been used for ab initio structure determination of various types of nanocrystals, such as metal-organic frameworks (MOFs), zeolites, metal oxides and organic crystals. These crystals are of...
Solving molecular compounds from powder diffraction data: are results always reliable? [0.03%]
从粉末衍射数据解析分子化合物：结果总是可靠的吗？
Angela Altomare
Angela Altomare
Commentary is given on a paper [Schlesinger et al. (2022). IUCrJ, 9, 406-424.] reporting on ambiguous structure determination from powder data using four different structural models of 4,11-difluoroquinacridone with similar X-ray powder pat...
Pai Shan,Xifa Long
Pai Shan
Symmetry is an essential concept in physics, chemistry and materials science. Comprehensive, authoritative and accessible symmetry theory can provide a strong impetus for the development of related materials science. Through the sustained e...
Epitaxial intergrowths and local oxide relaxations in natural bixbyite Fe2- x Mn x O3 [0.03%]
自然铋铁矿Fe₂-ₓMnₓO₃中的外延共格关系及局部氧化物弛豫现象
Kristoffer Andreas Holm Støckler,Nikolaj Roth,Thomas Bjørn Egede Grønbech et al.
Kristoffer Andreas Holm Støckler et al.
The scattering pattern of a crystal obeys the symmetry of the crystal structure through the corresponding Laue group. This is usually also true for the diffuse scattering, containing information about disorder, but here a case is reported w...
Effect of synthesis time on plasmonic properties of Ag dendritic nanoforests [0.03%]
合成时间对银树状纳米阵列等离子共振特性的影响研究
Hung Ji Huang,Han-Wei Chang,Chia-Yen Lee et al.
Hung Ji Huang et al.
The effects of synthesis time on the plasmonic properties of Ag dendritic nanoforests on Si substrate (Ag-DNF/Si) samples synthesized through the fluoride-assisted galvanic replacement reaction were investigated. The Ag-DNF/Si samples were ...