1N22- (16) -> σ1s2,σ*1s2,σ2s2,σ*2s2,Π2px2,Π2py2,Π*2px2,Π*2py2.
O2 (16) -> σ1s2,σ*1s2,σ2s2,σ*2s2, σ2pz2,Π2px2,Π2py2,Π*2px1,Π*2py1.
Please give the molecular orbital configuration for N22- and O2 ...
sry for asking such a li'l question... but my class notes n text buk contradict n dats leading me to damn confusion...!!!
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14 Answers
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1in ur N22- configuration, u've missed σ2pz orbital....... that's where my exact doubt lies [3]
1now my doubt is... for any molecule having <16 electrons, MO configuration will be
Π2px,Π2py,σ2pz,Π*2px,Π*2py,σ*2pz.
and for molecules having ≥16 electrons, MO config will be
σ2pz,Π2px,Π2py,Π*2px,Π*2py,σ*2pz.
right !!! or anything wrong ?
1hey amrita... first go n check ur chatbox yaar... ur bro (john cena) needs ur help... i'll wait... :)
1and next thing.... i read this > / < 14 explanation in arihant...
but they gave no resaon for it...
actually wat happens in O2 and F2, there is a large diff between sigma 2pz and pi 2Px=pi 2Py orbitals..
but this dsnt happen in case of nitrogen n other earlier elements...
1john, i need to quit for an urgent work jus now....
i will reply in the evening for sure!
and .... y do u tell things a 100 times :O [11]
no offence ...
just i wanted to say that ...i have eyes [3]
1yeah... even i'm confused wid all these buks... "rapid chemistry by mtg" gave d MO config, as i posted above... while my teacher taught us in some other way.... huhhh...!!!
13=100 [15][12][11][9][7][17] [16]
I TOLD IT 3=100 [3]TIMES COZ FROM YESTERDAY I M NOT GETTING ANY REPLY
1http://www.ch.ic.ac.uk/vchemlib/course/mo_theory/main.html
dis site gives d same order as d one i gave... and so does wikipedia...
http://en.wikipedia.org/wiki/MO_diagram
i guess MTG is rite !!! [12] [1]
24This is the perfect reason for deviation in my opinion......
There is a significant difference between the energies of the 2s and 2p orbitals on an atom. As a result, the σ2s and σ*2s orbitals both lie at lower energies than the σ2p, σ2p*, πx, πy, πx*, and πy* orbitals.
Because they meet head-on, the interaction between the 2pz orbitals is stronger than the interaction between the 2px or 2py orbitals, which meet sideways. As a result, the σ2p orbital lies at a lower energy than the x and y orbitals, and the σ2p* orbital lies at higher energy than the πx* and πy* orbitals
Experiments have shown that O2 and F2 are best described by this model
Conisdering another case,it is possible for the 2s orbital on one atom to interact with the 2pz orbital on the other. This interaction introduces an element of s-p mixing, or hybridization, into the molecular orbital theory. The result is a slight change in the relative energies of the molecular orbitals.
Experiments have shown that B2, C2, and N2 are best described by this model