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Indexing Non-merohedrally Twinned Crystals by Bruker'sAPEX2 and Agilent's CrysAlis~(PRO), an Example
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2014
The first part of this report describes the data reduction of non-merohedrally twinned crystals measured on Bruker and Agilent area-detector diffractometers. Th...
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2011
The molecule of 4-tricyanovinyl-N,N-diethylaniline is disordered about an axis that is close to the axis passing through the 1,4-carbon atoms. The disorder is a...
2-(1,3-Diphenylpropen-1,3-diolato)-1,3,2-(5-formylbenzo)dioxaborol: A 'Whole-molecule Disorder' Crys
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2010
The boron atom in C22H15BO5 is O,O’-chelated by the anions in a tetrahedral geometry, with the planar five-and six-membered chelate rings being orthogonal to e...
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2005
The space group of [(H2O)(C3H4N2)(O2CCH=CHCO2Zn)]n, which was originally described in the acentric Pc space group (Liu et al., Chin. J. Struct. Chem. 2004, 23,...
Data Collection on and Refinement of Twinned,Non-merohedrally-twinned Methyl 2-Aminopyrazine-3-carbo
[期刊论文] 作者:Ng Seik Weng,
来源:结构化学 年份:2009
The procedure for collecting diffraction data at –173 °C on a twinned specimen of methyl 2-aminopyrazine-3-carboxylate by using the APEX-II software follo...
Dimethyltin Dichloride-Dibenzyl Sulfoxide,a Compound Crystallizing with Seven Molecules in the Asymm
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2010
Dimethyltin dichloride-dibenzyl sulfoxide,((CH3)2SnCl2·O=S(CH2C6H5)2),crystallizes in the orthorhombic space group P212121 with a superstructure of dimensi...
‘Whole-molecule Disorder’ Refinement of 4-(4-Hydroxybenzylideneiminio)phenol Hemichloride Hemihydrox
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2011
The two independent cations of the salt, [HO-C6H4-CH=NH-C6H4-OH]·1/2OH·1/2Cl, are both disordered about an axis connecting the two oxygen atoms at the...
[期刊论文] 作者:Ng Seik Weng,
来源:结构化学 年份:2005
Examples of the refinement of disordered structures taken from work published in Acta Crystallographica are presented together with explanations on how the diso...
Structures that should be Described in Higher-Symmetry,Centrosymmetric Space Groups. Part 2. The Str
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2004
The space groups of the transition metal-Schiff base complexes, [ Ni scribed in Cc), have been revised to C2/c. The general descriptions of the first two struct...
Dimethyltin Dichloride-Dibenzyl Sulfoxide, a Compound Crystallizing with Seven Molecules in the Asym
[期刊论文] 作者:NG Seik Weng,
来源:黑龙江科技信息 年份:2004
本文通过对荣华二采区10...
Data Collection on and Refinement of Twinned, Non-merohedrally-twinned Methyl 2-Aminopyrazine-3-carb
[期刊论文] 作者:Ng Seik Weng,
来源:黑龙江科技信息 年份:2009
本文通过对荣华二采区10...
[期刊论文] 作者:NG Seik Weng,
来源:黑龙江科技信息 年份:2014
本文通过对荣华二采区10...
[期刊论文] 作者:NG Seik Weng,
来源:结构化学 年份:2003
The compound described as [Cu(OH)2(H2O)2(4-C5H4NCOOH)2] in Chin. J. Struct. Chem., 2001, 20: 478-480 is instead the compound [Cu(H2O)4(4-C5H4NCOO)2], whose crys...
[期刊论文] 作者:Ng Seik Weng,
来源:结构化学 年份:2003
The compound described as [Cu(OH)2(H2O)2(4-C5H4NCOOH)2] in Chin. J. Struct. Chem., 2001, 20: 478-480 is instead the compound [Cu(H2O)4(4-C5H4NCOO)2], whose crys...
[期刊论文] 作者:NG Seik Weng,,
来源:结构化学 年份:2014
The first part of this report describes the data reduction of non-merohedrally twinned crystals measured on Bruker and Agilent area-detector diffractometers. Th...
[期刊论文] 作者:ZHANG Wen-Hua,NG Seik Weng,
来源:结构化学 年份:2013
The two component molecules of the co-crystal 0.69(C18H20N2O6)?0.31(C18H18N2O6) lie on a center-of-inversion that exists midway along the ethylene chain connect...
[期刊论文] 作者:HU Sheng-Zhi,NG Seik Weng,
来源:黑龙江科技信息 年份:2014
本文通过对荣华二采区10...
Non-merohedrally Twinned Crystal Structure of the Co-crystal Ethyl 6-(2-[5-(Ethoxycarbonyl)-pyridin-
[期刊论文] 作者:ZHANG Wen-Hua,NG Seik Weng,
来源:黑龙江科技信息 年份:2013
本文通过对荣华二采区10...
Non-merohedrally Twinned Crystal Structure of the Co-crystal Ethyl 6-(2-5-(Ethoxycarbonyl)-pyridin-2
[期刊论文] 作者:ZHANG Wen-Hua,NG Seik Weng,,
来源:结构化学 年份:2013
The two component molecules of the co-crystal 0.69(C18H20N2O6)?0.31(C18H18N2O6) lie on a center-of-inversion that exists midway along the ethylene chain connect...
[期刊论文] 作者:NG Seik Weng,胡盛志,
来源:结构化学 年份:2003
This note explains the relationship (as well as the absence of a relationship) between chiral space groups and chiral molecules (which have absolute configurati...
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