Figure 2.27

Figure 2.27 displays LUMO energy levels for selected carbonyl compounds. From left to right these are:

Formaldehyde:

form01f.mol
#P b3lyp/6-31G(d) int=ultrafine freq pop=npa                         

form01f B3LYP/6-31G(d) opt tight                               

0 1
C,0,0.,0.,-0.5289052432
O,0,0.,0.,0.6775693998
H,0,0.937797417,0.,-1.1235618696
H,0,-0.937797417,0.,-1.1235618696


Acetaldehyde:

acetal01.mol
#p b3lyp/6-31g(d) int=ultrafine freq pop=npa

acetal01 B3LYP/6-31G(d) freq

0 1
C,0,-0.2423642682,-0.3996852036,0.
O,0,-1.2461071599,0.2770635732,0.
H,0,-0.3102640958,-1.5118453473,0.
C,0,1.1627522801,0.1484484233,0.
H,0,1.7057338706,-0.2191582644,0.8808071222
H,0,1.7057338706,-0.2191582644,-0.8808071222
H,0,1.1471678827,1.2406791133,0.


Actone:

aceton01f.mol
#P b3lyp/6-31G(d) int=ultrafine freq pop=npa

aceton01f B3LYP/6-31G(d) freq

0 1
C,0,0.,0.,-0.1882575903
O,0,0.,0.,-1.4039286808
C,0,0.,1.2930778278,0.6118635842
H,0,-0.880967899,1.3414023503,1.2643944028
H,0,0.880967899,1.3414023503,1.2643944028
H,0,0.,2.1485330628,-0.0664450743
C,0,0.,-1.2930778278,0.6118635842
H,0,0.880967899,-1.3414023503,1.2643944028
H,0,-0.880967899,-1.3414023503,1.2643944028
H,0,0.,-2.1485330628,-0.0664450743


Methyl acetate:

ma02f.mol
#P b3lyp/6-31G(d) int=ultrafine freq pop=npa

ma02f B3LYP/6-31G(d) freq

0 1
C,0,-0.2242885677,0.4857136476,0.
O,0,-1.4229704751,0.312966411,0.
C,0,0.4749452956,1.8251302023,0.
H,0,1.1175061878,1.9148340019,0.8820123608
H,0,1.1175061878,1.9148340019,-0.8820123608
H,0,-0.268672276,2.6225744167,0.
O,0,0.6758070192,-0.526160897,0.
C,0,0.1125970932,-1.8474763476,0.
H,0,0.9638410603,-2.5290663653,0.
H,0,-0.5042661285,-2.0037140707,0.8891500362
H,0,-0.5042661285,-2.0037140707,-0.8891500362


N-Methylacetamide:

maa02f.mol
#P b3lyp/6-31G(d) int=ultrafine freq pop=npa

maa02f B3LYP/6-31G(d) freq

0 1
C,0,-0.2070635179,0.5106493769,0.
O,0,-1.4292182272,0.4323500362,0.
C,0,0.5091714814,1.8545000117,0.
H,0,0.1935035266,2.4212131078,-0.8813061138
H,0,0.1935035266,2.4212131078,0.8813061138
H,0,1.6014234275,1.7781699986,0.
C,0,0.0978352697,-1.9440495161,0.
H,0,-0.9909687527,-1.8752159399,0.
H,0,0.4230119079,-2.4937626394,-0.8916286159
H,0,0.4230119079,-2.4937626394,0.8916286159
N,0,0.6113296347,-0.5869250255,0.
H,0,1.610640975,-0.4473605395,0.