نتایج جستجو برای: axial and equatorial position
تعداد نتایج: 16855566 فیلتر نتایج به سال:
In the title compound, [V(C15H11O2)2O(CH3OH)]·2CH3OH, the V(IV) atom is coordinated by two 1,3-diphenyl-propane-1,3-dionate ligands and an oxide ligand in an axial position. The sixth position is occupied by the O atom of a methanol group bonded trans to the oxide atom. The octa-hedral geometry is significantly distorted, with the V(IV) atom lying 0.330 (3) Å above the equatorial plane formed b...
In the title 1,3,2-dioxaphospho-rinane derivative, C(10)H(11)Br(2)O(4)P, the 1,3,2-dioxaphospho-rinane ring adopts a chair conformation, having the P=O bond equatorially oriented and the phen-oxy group axially oriented. The bromo substituent is in an axial position opposite to the phen-oxy group and the bromo-methyl group is in an equatorial position opposite to the P=O bond. In the crystal pac...
Lipopolysaccharide, Carbohydrate Moiety, Structure The cell wall of the mutant R 595 of Salmonella minnesola contains a lipopolysaccharide in which only a trisaccharide consisting of three KDO * residues is linked to a lipid termed lipid A. Considering the sterical requirements of fourteen rotation angles, we have calculated allowed conformation of this trisyccharide unit and its linkage to lip...
The relationship between axial length and equatorial diameter and eye volume has been studied in 4 groups of eyes: intact emmetropic eyes, emmetropic eyes with retinal detachment, eyes with moderate myopia and retinal detachment, and eyes with high myopia and retinal detachment. It was found that eyes with detached retinas, regardless of whether they are myopic or emmetropic, are of significant...
background: cervical spine sustains most of thevertebral column injuries, among other injuries, the disc degeneration and damage that lead to replacement of the damaged disc with cage or artificial disc. methods: the c4 to c6 vertebrae of a normal subject and a person with interbody fusion cage were 3d modelled and then analyzed using finite element method. the results of maximum stress and str...
bserved by many teachers that most of the time, mumbling and searching for their intended words, students complain why they have forgotten the words they have learned in the previous semesters. they ask for some new ways that may help them to recall and apply the learned words more efficiently, since as they declare one of the most important skills in foreign language learning is having a g...
The Cu atom of the title complex, [Cu(C(13)H(19)N(2)O(2))(C(10)H(8)N(2))]ClO(4), has a distorted square-pyramidal geometry with all three of the donor atoms from the N,N',O-tridentate Schiff base ligand in the equatorial positions and the bipyridine N atoms in an equatorial-axial binding mode. The Cu atom is 0.1801 (11) Å above the N(3)O mean basal plane.
The crystal structure of a racemic mixture of the title ruthenium(II) complex, [RuCl(C(30)H(30)O(2)P(2))(2)]CF(3)SO(3)·2CH(2)Cl(2), reveals that the coordination geometry about the coordinatively unsaturated metal centre is approximately trigonal-pyramidal, with the chlorine atom occupying one of the equatorial positions. The axial Ru-P bonds are longer than the equatorial Ru-P bonds and there ...
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