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17 Mar 2008 22:58:20 IST

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what are antibody molecular orbit

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Guru Gulab Khatri :D

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17 Mar 2008 23:11:57 IST

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man its not anti body molecular orbitall..

its anti bonding molecular orbital..

Guru Gulab Khatri :D

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17 Mar 2008 23:14:42 IST

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when the wave functions of two similar orbitals of two similar atoms are hybridised,, i mean they combine destructively.. then the resulting molecular orbital is called anti bonding molecular orbital..

it tends to make the stability of the molecule less.. and it has higher energy level than the bonding one///

Srujana

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18 Mar 2008 17:19:16 IST

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2 simple things you need to remember,

1)If the wave function of an Atom A is $eq=\psi_A$ , then the probability of finding an electron is $eq=\psi^2 _A$
lly, If the wave function of an Atom is B is $eq=\psi_B$ , then the probability of finding an electron is $eq=\psi^2 _B$

2)If A and B are combining additively, then probability = $eq=(\psi_A +\psi_B)^2$ , i.e, the probability increased by $eq=2\psi_A \psi_B$
If A and B are combining subtractively, then probability = $eq=(\psi_A -\psi_B)^2$ i.e, the probability decreased by $eq=2\psi_A \psi_B$

The increase in the probability molecular orbitals are called Bonding mol. Orbitals
The decrease in the probability molecular orbitals are called Anti Bonding mol. Orbitals

Bonding mol. Orbitals are said to be in lower energy, Anti Bonding mol. Orbitals are said to be in higher in energy.

Srujana

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18 Mar 2008 17:19:43 IST

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Re:what are antibody molecular orbit

http://aycu28.webshots.com/image/47187/2001167854232469834_rs.jpg

BILLA

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19 Mar 2008 09:06:13 IST

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when the shrodinger wave functions of the sine or cos form of opposite signs orbitals overlap it leads to somewhat similar to destructive interference like in physics ie due to out of phase overlap the resulting molcular orbital is known as antibonding molecular orbital which is of higher energy and unstable when a electron occupies it !!! any doubts???

Madhusudan Chavan

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19 Mar 2008 19:12:33 IST

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When two atomic orbitals overlap, the nature of the molecular orbital depends on whether the overlap occurs between the two regions having the same sign or opposite signs. When the former occurs, the result is bonding orbital, whereas when the latter occurs, the result is an anti-bonding orbital. In some cases, two orbitals of opposite sign cancel out each other; the result is non-bonding.In bonding orbitals, the electron charge is concentrated in the region between the two nuclei; therby holding the two nuclei together. On the other hand, in anti-bonding orbitals electron charge is withdrawn from the region between the two nuclei, thereby resulting in increased repulsion between the two nuclei.

vignesh the cooler version of newton

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19 Mar 2008 19:41:04 IST

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we see orbitals like waves...
when two of those orbitals combine,
two things can happen...
either both can combine constructively
( eg. amplitude of both waves add up)
or can combine destructively
eg. amplitude of both waves get vector subtracted...

during destructive combination... antibonding orital forms.....
and it little destabilizes the atom..

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