symmetry element वाक्य
उदाहरण वाक्य
मोबाइल
- If a symmetry element is present throughout the reaction mechanism ( reactant, transition state, and product ), it is called a conserved symmetry element.
- Correlation lines are drawn to connect molecular orbitals in the starting material and the product that have the same symmetry with respect to the conserved symmetry element.
- The piezomagnetic effect is made possible by an absence of certain symmetry elements in a crystal structure; specifically, symmetry under time reversal forbids the property.
- A symmetry element is a point of reference ( usually a plane or a line ) about which an object is symmetric with respect to a symmetry operation.
- When describing the improper rotation symmetry element ( in 3 dimensional Euclidean space ) it is always specified that the reflection plane be perpendicular to the rotation axis.
- If there are no mirror planes as symmetry elements then the mirror image of a crystal cannot be brought into superposition with the original crystal by rotation or translation.
- In order to correlate orbitals of the starting material and product, one must determine whether the molecular orbitals are symmetric or antisymmetric with respect to these symmetry elements.
- His 1922 book, The Analytical Expression of the Results of the Theory of Space Groups, contained tables with the positional coordinates, both general and special, permitted by the symmetry elements.
- That is, molecular orbitals that are symmetric with respect to the symmetry element in the starting material must be correlated to ( transform into ) orbitals symmetric with respect to that element in the product.
- The Hermann Mauguin notation, compared with the Schoenflies notation, is preferred in crystallography because it can easily be used to include translational symmetry elements, and it specifies the directions of the symmetry axes.
- Wyckoff s 1922 book, " The Analytical Expression of the Results of the Theory of Space Groups ", contained tables with the positional coordinates, both general and special, permitted by the symmetry elements.
- Correlation diagrams are of no use in analyzing the conservation of orbital symmetry in sigmatropic rearrangements as there are, in general, only symmetry elements present in the transition state i . e . no conserved symmetry elements.
- Correlation diagrams are of no use in analyzing the conservation of orbital symmetry in sigmatropic rearrangements as there are, in general, only symmetry elements present in the transition state i . e . no conserved symmetry elements.
- There is only one conserved symmetry element in this transformation the mirror plane through the center of the reactants as shown to the left . From this we can assign the symmetry of the molecular orbitals of the reactants very simply.
- Any crystal which has a mirror plane as one of its symmetry elements has the property that its mirror image ( with any plane as the mirror plane ) can always be superimposed on the original crystal by translation or rotation or both.
- Ligands with a C 2 symmetry element have been particularly popular, in part because the presence of such an element reduces the possible binding conformations of a substrate to a metal-ligand complex dramatically ( often resulting in exceptional enantioselectivity ).
- But every symmetry element has a unique normal form, in which it is given as a rotation followed ( if necessary ) by a reflection in the plane of that rotation . talk ) 12 : 28, 16 November 2011 ( UTC)
- In a "'molecular symmetry group "', the group elements are the symmetry operations ( " not " the symmetry elements ), and the binary combination consists of applying first one symmetry operation and then the other.
- Once the point group of the linear molecule is determined and the correlated symmetry is identified, all symmetry element operations associated to that correlated symmetry's point group are performed for each atom to deduce the reducible representation of the 3 " N"
- Rhodocene exists as [ Rh ( C 5 H 5 ) 2 ], a paramagnetic 19-valence electron symmetry elements; this experimentally demonstrates that the monomer does possess the typical sandwich structure of a metallocene although the interpretation of the ESR data has been questioned.
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