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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-336.788111
Energy at 298.15K-336.794728
Nuclear repulsion energy235.423870
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 HF/aug-cc-pVDZ
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 3961 3607 0.00      
2 Ag 3815 3474 0.00      
3 Ag 1956 1781 0.00      
4 Ag 1758 1600 0.00      
5 Ag 1554 1415 0.00      
6 Ag 1204 1096 0.00      
7 Ag 839 764 0.00      
8 Ag 574 522 0.00      
9 Ag 434 396 0.00      
10 Au 703 640 17.43      
11 Au 517 471 131.09      
12 Au 366 334 368.71      
13 Au 84 77 5.79      
14 Bg 930 847 0.00      
15 Bg 672 612 0.00      
16 Bg 370 337 0.00      
17 Bu 3961 3607 206.02      
18 Bu 3815 3474 162.82      
19 Bu 1911 1740 1002.36      
20 Bu 1738 1583 303.45      
21 Bu 1405 1279 254.74      
22 Bu 1185 1079 0.95      
23 Bu 630 574 44.02      
24 Bu 300 273 40.06      

Unscaled Zero Point Vibrational Energy (zpe) 17340.1 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 15789.9 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 HF/aug-cc-pVDZ
ABC
0.19432 0.12448 0.07588

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.770 0.000
C2 0.000 -0.770 0.000
O3 1.029 1.387 0.000
O4 -1.029 -1.387 0.000
N5 -1.229 1.294 0.000
N6 1.229 -1.294 0.000
H7 -1.340 2.282 0.000
H8 -2.018 0.688 0.000
H9 1.340 -2.282 0.000
H10 2.018 -0.688 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54071.20032.39081.33562.40212.02032.02023.33372.4899
C21.54072.39081.20032.40211.33563.33372.48992.02032.0202
O31.20032.39083.45532.26032.68842.53303.12733.68272.2986
O42.39081.20033.45532.68842.26033.68272.29862.53303.1273
N51.33562.40212.26032.68843.56850.99470.99544.40303.8040
N62.40211.33562.68842.26033.56854.40303.80400.99470.9954
H72.02033.33372.53303.68270.99474.40301.73285.29314.4833
H82.02022.48993.12732.29860.99543.80401.73284.48334.2647
H93.33372.02033.68272.53304.40300.99475.29314.48331.7328
H102.48992.02022.29863.12733.80400.99544.48334.26471.7328

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 120.940 C1 C2 N6 113.064
C1 N5 H7 119.494 C1 N5 H8 119.428
C2 C1 O3 120.940 C2 C1 N5 113.064
C2 N6 H9 119.494 C2 N6 H10 119.428
O3 C1 N5 125.997 O4 C2 N6 125.997
H7 N5 H8 121.079 H9 N6 H10 121.079
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.927      
2 C 0.927      
3 O -0.764      
4 O -0.764      
5 N -0.153      
6 N -0.153      
7 H -0.012      
8 H 0.003      
9 H -0.012      
10 H 0.003      


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 -31.511 -12.269 0.000
y -12.269 -33.567 0.000
z 0.000 0.000 -35.735
Traceless
 xyz
x 3.140 -12.269 0.000
y -12.269 0.056 0.000
z 0.000 0.000 -3.196
Polar
3z2-r2-6.392
x2-y22.056
xy-12.269
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> 143.539
(<r2>)1/2 11.981