Structures and phase transitions in the ordered double perovskites Ba2BiIIIBiVO6 and Ba2BiIIISbVO6 [0.03%]
Ba2BiIIIBiVO6和Ba2BiIIISbVO6有序双钙钛矿结构及相变
Brendan J Kennedy,Christopher J Howard,Kevin S Knight et al.
Brendan J Kennedy et al.
High-resolution neutron powder diffraction has been used to investigate the structures and phase transitions in the double perovskites Ba(2)Bi(3+)Bi(5+)O(6) (dibarium dibismuth hexaoxide) and Ba(2)BiSbO(6) (dibarium bismuth antimony hexaoxi...
Classification of stacking faults and their stepwise elimination during the disorder --> order transformation of nickel hydroxide [0.03%]
镍氢氧化物无序-有序转变中的孪晶缺陷分类及逐步消除规律
T N Ramesh,P Vishnu Kamath,C Shivakumara
T N Ramesh
Nickel hydroxide samples obtained by strong alkali precipitation are replete with stacking faults. The local structures of the stacking faults resemble the stacking patterns of different polytypic modifications that are theoretically possib...
Neutron and electron diffraction studies of La(Zn1/2Ti1/2)O3 perovskite [0.03%]
关于La(Zn1/2Ti1/2)O3钙钛矿的中子和电子衍射研究
Rick Ubic,Yi Hu,Isaac Abrahams
Rick Ubic
The crystallography and microwave dielectric properties of La(Zn(1/2)Ti(1/2))O(3) (LZT) ceramics prepared via the mixed-oxide route were investigated in this study. While samples were largely single phase, small amounts of ZnO impurity were...
Chemical bonding in pentaerythritol at very low temperature or at high pressure: an experimental and theoretical study [0.03%]
低温或高压下五味子醇酯的化学键合研究：实验与理论探讨
Elizabeth A Zhurova,Vladimir G Tsirelson,Vladimir V Zhurov et al.
Elizabeth A Zhurova et al.
Chemical bonding in the pentaerythritol crystal based on the experimental electron density at 15 (1) K, and theoretical calculations at the experimental molecular geometries obtained at room and low (15 K) temperatures have been analyzed an...
The incommensurately modulated structure of a tricyclic natural-product-like compound of empirical formula C22H20O3 [0.03%]
经验公式为C22H20O3的三环类天然产物类似物的不可公度调制结构
Nicolas Guiblin,Cyril A Fuhrer,Robert Häner et al.
Nicolas Guiblin et al.
3,4-Diphenyl-2a,5a,6,7,8,8a,8b-heptahydro-furo[4,3,2-de]chromen-2-one (1) was prepared as part of a project aimed at the synthesis of polycyclic natural-product-like scaffolds. X-ray analysis of crystals grown from ethanol revealed an incom...
Edwin A Collier,Roger J Davey,Simon N Black et al.
Edwin A Collier et al.
The structures of two neutral and 17 salt forms of the base (1R, 2S)-(-)-ephedrine are reported. These structures are discussed in the light of the conformers of the ephedrine moiety, the existence of bilayers and the structure determining ...
S,S-1,2-Dicyclohexylethane-1,2-diol and its racemic compound: a striking exception to Wallach's rule [0.03%]
Wallach规则的特例：S,S-1,2-二环己基乙烷-1,2-二醇及其消旋体
Brian O Patrick,Carolyn Pratt Brock
Brian O Patrick
The structures of enantiopure S,S-1,2-dicyclohexylethane-1,2-diol and its racemic compound (rac-S,S-1,2-dicyclohexylethane-1,2-diol) have been determined at 295 and 173 K. The crystals of the enantiopure material are more than 4% denser tha...
X-ray crystallographic structures of enamine and amine Schiff bases of pyridoxal and its 1:1 hydrogen-bonded complexes with benzoic acid derivatives: evidence for coupled inter- and intramolecular proton transfer [0.03%]
吡哆醛烯胺和胺席夫碱的晶体结构以及它们与苯甲酸衍生物形成的一比一氢键复合物：互分子质子转移和内分子质子转移相互耦合现象的证据
Shasad Sharif,Douglas R Powell,David Schagen et al.
Shasad Sharif et al.
Crystal structures of Schiff bases containing pyridoxal (PL), N-(pyridoxylidene)-tolylamine, C(15)H(16)N(2)O(2) (I), N-(pyridoxylidene)-methylamine, C(9)H(12)N(2)O(2) (III), and their 1:1 adduct with 2-nitrobenzoic acid, (I)(+) C(7)H(4)NO_4...
Cis/trans isomers of PtX2L2 (X = halogen, L = neutral ligand); the crystal structure of trans-dichlorobis(dimethyl sulfide)platinum(II) and the pressure dependence of its unit-cell dimensions [0.03%]
PtX2L2（X=卤素，L=中性配体）的顺式/反式异构体；反式-二氯-双-二甲基亚砜铂(II)的晶体结构及其晶胞参数的压致变化
Christian Hansson,Stefan Carlson,Deborah Giveen et al.
Christian Hansson et al.
trans-PtCl(2)(dms)(2) (dms is dimethyl sulfide) crystallizes in the space group P2(1)/n and adopts the molecular point group C(i), which is the most frequently occurring point group for trans-PtX(2)L(2) complexes (78%), as observed in the C...
Crystal structures of the trifluoromethyl sulfonates M(SO3CF3)2 (M = Mg, Ca, Ba, Zn, Cu) from synchrotron X-ray powder diffraction data [0.03%]
基于同步辐射X射线粉晶衍射数据的三氟甲烷磺酸金属盐M(SO3CF3)2(M= Mg, Ca, Ba, Zn, Cu)晶体结构
Robert Dinnebier,Natalia Sofina,Lars Hildebrandt et al.
Robert Dinnebier et al.
The crystal structures of divalent metal salts of trifluoromethyl sulfonic acid ("trifluoromethyl sulfonates") M(SO(3)CF(3))(2) (M = Mg, Ca, Ba, Zn, Cu) were determined from high-resolution X-ray powder diffraction data. Magnesium, calcium ...