The composition and structure of self-assembled coordination cages are very sensitive to subtle changes in the geometry of the bent organic ligands that are used to stitch together the metal ions. Credit: © 2010 AAAS Metal ions and organic ligands can be combined in a vast number of differen...
Reversible bending and helix geometry in a B-DNA dodecamer: CGCGAATTBrCGCG. A double-helical B-DNA dodecamer has been analyzed by single crystal x-ray diffraction methods and refined independently in four variants: sequence CGCGAAT... AV Fratini,ML Kopka,HR Drew,... - 《Journal of Biologic...
For our model, we assumed a simple smectic-C geometry with constant molecular tilt and cone angle defined by the director with respect to the layer normal, but allowed a constant variation of the polar direction about the director. Applying this simplified model to a free energy which accounts...
The dicarbahexaborate and pentamethylcyclopentadienide ligands are coordinated to the zirconium in an eta(5) fashion, and the coordination geometry about the Zr atom is that of a distorted tetrahedron defined by the two chlorides and the centroids of the pentamethylcyclopentadienyl and dicarbahexabo...
The dicarbahexaborate and pentamethylcyclopentadienide ligands are coordinated to the zirconium in an η 5 fashion, and the coordination geometry about the Zr atom is that of a distorted tetrahedron defined by the two chlorides and the centroids of the pentaroclylcyclopentadienyl and dicarbahexabo...
The (TTB)An calculations that are reported here are, to date, the largest full geometry optimizations to be carried out on an actinide system 展开 关键词: radiation chemistry, radiochemistry, and nuclear chemistry actinides chemistry ferrocene rare earths environmental molecular sciences laboratory, ...
- 《Analytical Chemistry》 被引量: 162发表: 2005年 On-chip detection of myoglobin based on fluorescence The functionalized polystyrene surfaces were characterized by contact angle measurement, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM... F Darain,P Yager,KL Gan,.....
Bent bond, also known asbanana bond, is a term inchemistrythat refers to a type ofcovalentchemical bondwith a geometry somewhat reminiscent of abanana. The term itself is a general representation of electron density or configuration resembling a similar "bent" structure within small ring molecules...
An extremely bent cyanide bridge in crystals of [(CN)3Pt(mu-CN)Cu(NH3)4]. Influence of electrostatic forces on the nature and geometry of bridging cyanides in the solid state.platinum, Ptcopper, Custructure (solids and liquidsThe dinuclear heterometallic complex [(CN)3Pt(mu-CN)Cu(NH3)4...
Bent bond, also known asbanana bond, is a term inchemistrythat refers to a type ofcovalentchemical bondwith a geometry somewhat reminiscent of abanana.The term itself is a general representation of electron density orconfiguration resembling a similar "bent" structure within small ringmolecules, su...