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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-338.564573
Energy at 298.15K-338.571007
Nuclear repulsion energy233.843890
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3748 3608 0.00      
2 Ag 3607 3473 0.00      
3 Ag 1829 1761 0.00      
4 Ag 1625 1564 0.00      
5 Ag 1426 1373 0.00      
6 Ag 1117 1075 0.00      
7 Ag 773 744 0.00      
8 Ag 534 514 0.00      
9 Ag 400 385 0.00      
10 Au 696 670 0.77      
11 Au 501 483 285.66      
12 Au 368 355 269.56      
13 Au 99 96 4.68      
14 Bg 840 809 0.00      
15 Bg 678 653 0.00      
16 Bg 394 379 0.00      
17 Bu 3748 3608 135.85      
18 Bu 3607 3473 104.82      
19 Bu 1801 1734 651.69      
20 Bu 1626 1565 333.06      
21 Bu 1327 1277 134.57      
22 Bu 1108 1067 7.86      
23 Bu 577 556 23.22      
24 Bu 278 268 38.66      

Unscaled Zero Point Vibrational Energy (zpe) 16353.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 15743.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-311G*
ABC
0.18886 0.12486 0.07517

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.772 0.000
C2 0.000 -0.772 0.000
O3 1.034 1.416 0.000
O4 -1.034 -1.416 0.000
N5 -1.249 1.263 0.000
N6 1.249 -1.263 0.000
H7 -1.406 2.256 0.000
H8 -2.021 0.615 0.000
H9 1.406 -2.256 0.000
H10 2.021 -0.615 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54491.21792.42011.34212.38842.04442.02673.33932.4510
C21.54492.42011.21792.38841.34213.33932.45102.04442.0267
O31.21792.42013.50632.28842.68752.58143.15803.69062.2573
O42.42011.21793.50632.68752.28843.69062.25732.58143.1580
N51.34212.38842.28842.68753.55311.00531.00784.40893.7707
N62.38841.34212.68752.28843.55314.40893.77071.00531.0078
H72.04443.33932.58143.69061.00534.40891.75255.31734.4707
H82.02672.45103.15802.25731.00783.77071.75254.47074.2241
H93.33932.04443.69062.58144.40891.00535.31734.47071.7525
H102.45102.02672.25733.15803.77071.00784.47074.22411.7525

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.873 C1 C2 N6 111.452
C1 N5 H7 120.456 C1 N5 H8 118.499
C2 C1 O3 121.873 C2 C1 N5 111.452
C2 N6 H9 120.456 C2 N6 H10 118.499
O3 C1 N5 126.675 O4 C2 N6 126.675
H7 N5 H8 121.045 H9 N6 H10 121.045
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.424      
2 C 0.424      
3 O -0.384      
4 O -0.384      
5 N -0.801      
6 N -0.801      
7 H 0.369      
8 H 0.393      
9 H 0.369      
10 H 0.393      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.693 -11.907 0.000
y -11.907 -32.551 0.000
z 0.000 0.000 -35.190
Traceless
 xyz
x 4.177 -11.907 0.000
y -11.907 -0.110 0.000
z 0.000 0.000 -4.068
Polar
3z2-r2-8.135
x2-y22.858
xy-11.907
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 143.867
(<r2>)1/2 11.994