internuclear वाक्य
उदाहरण वाक्य
मोबाइल
- It has less commonly been associated with spasm of nystagmus and associated ocular motility deficits including skew deviation, oculomotor nerve palsy, trochlear nerve palsy and internuclear ophthalmoplegia.
- The first sign of Hepatitis D was detected in 1978 when a strange and unrecognizable internuclear antigen was discovered during a liver biopsy of several Italians who suffered HBV infection.
- In this anti-bonding MO with energy much higher than the original AO's, any electrons present are located in lobes pointing away from the central internuclear axis.
- This is a result of the relatively large electron and internuclear repulsions, combined with a relatively small overlap of bonding orbitals arising due to the small size of the atoms.
- "' Internuclear ophthalmoplegia "'( "'INO "') is a disorder of conjugate lateral gaze in which the affected eye shows impairment of adduction.
- LeRoy later defined an expression for the radius that approximates a boundary between the region where electron exchange ( van der Waals interactions expressible as a power series in the internuclear separation ).
- For the minimum potential curves corresponding to almost the same value of the internuclear distance ( r # 0.3 nm ), the energy difference measured experimentally is about 9940 cm.
- In accord with the Hellmann-Feynman theorem, the nuclear potential is taken to be an average over electron configurations of the sum of the electron & ndash; nuclear and internuclear electric potentials.
- For the & Sigma; states, however, this two-fold degeneracy disappears, and all & Sigma; states are either symmetric under any plane containing the internuclear axis, or antisymmetric.
- For r > R _ { LR }, the internuclear potential can be reasonably approximated by charge independent atomic distributions, and the vibrational levels can be well described by LeRoy-Bernstein theory.
- The orbital symmetry of the ? bonding orbital is different from that of a antibonding orbital, which has one nodal plane containing the internuclear axis and a second nodal plane perpendicular to this axis between the atoms.
- Although in the hydrogen molecule the exchange integral, Eq . ( 6 ), is negative, Heisenberg first suggested that it changes sign at some critical ratio of internuclear distance to mean radial extension of the atomic orbital.
- This phenomenon is referred to as Fermi heap, and plays an important role in chemical bonding by allowing both electrons to be localized in the internuclear region and thus shielding the positively charged nuclei from electrostatic repulsion with one another.
- Other theoretically weaker transitions have not yet resulted in an observation with the exception of Hay and Dunning, who made provisions for four transitions that are perpendicularly polarized at the internuclear axis; in other words, with ?? = ?.
- This coupling, also known by EPR spectroscopists as hyperfine coupling, is on the order of MHz, vs the usual internuclear ( J ) coupling observed in conventional NMR spectra, which are on the order of a few Hz.
- Because the moment of inertia about the internuclear axis is vanishingly small relative to the other two rotational axes, the energy spacing can be considered so high that no excitations of the rotational state can occur unless the temperature is extremely high.
- Internuclear ophthalmoplegia occurs when MS affects a part of the brain stem called the medial longitudinal fasciculus, which is responsible for communication between the two eyes by connecting the abducens nucleus of one side to the oculomotor nucleus of the opposite side.
- Since the equilibrium internuclear separation for the neutral molecule is smaller than for the ionized one, the ionic nuclear wave packet finds itself on the repulsive side of the ground state potential well and starts to cross it ( see Fig . 3a ).
- The distinction between states B and C is that they are correlated with ions whose semi-occupied orbital " p " is in a plane parallel to the internuclear axis for the state B and perpendicular to this axis for the state C.
- But the F3-B1 interaction is definitely pi, as it's side-on overlap of p orbitals with a nodal plane right down the F3-B1 internuclear axis .-- talk ) 11 : 04, 19 April 2012 ( UTC)
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