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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-338.233883
Energy at 298.15K-338.239976
Nuclear repulsion energy231.628681
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 PBEPBEultrafine/6-31G*
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 3635 3575 0.00      
2 Ag 3488 3431 0.00      
3 Ag 1776 1747 0.00      
4 Ag 1546 1521 0.00      
5 Ag 1373 1351 0.00      
6 Ag 1072 1054 0.00      
7 Ag 748 736 0.00      
8 Ag 514 506 0.00      
9 Ag 381 375 0.00      
10 Au 683 672 0.03      
11 Au 461 454 171.05      
12 Au 312 307 343.26      
13 Au 95 94 0.09      
14 Bg 785 772 0.00      
15 Bg 670 658 0.00      
16 Bg 314 309 0.00      
17 Bu 3635 3575 140.34      
18 Bu 3488 3430 92.83      
19 Bu 1750 1721 476.49      
20 Bu 1553 1527 334.02      
21 Bu 1286 1265 88.79      
22 Bu 1067 1049 14.30      
23 Bu 550 541 16.74      
24 Bu 267 263 40.36      

Unscaled Zero Point Vibrational Energy (zpe) 15724.6 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 15465.2 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 PBEPBEultrafine/6-31G*
ABC
0.18399 0.12354 0.07391

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.063 0.773 0.000
C2 0.063 -0.773 0.000
O3 -1.159 1.347 0.000
O4 1.159 -1.347 0.000
N5 1.159 1.357 0.000
N6 -1.159 -1.357 0.000
H7 1.252 2.369 0.000
H8 1.975 0.745 0.000
H9 -1.252 -2.369 0.000
H10 -1.975 -0.745 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.55161.23662.44721.35462.39542.06792.03873.35932.4411
C21.55162.44721.23662.39541.35463.35932.44112.06792.0387
O31.23662.44723.55362.31792.70382.61863.19143.71672.2452
O42.44721.23663.55362.70382.31793.71672.24522.61863.1914
N51.35462.39542.31792.70383.56901.01611.02034.43783.7735
N62.39541.35462.70382.31793.56904.43783.77351.01611.0203
H72.06793.35932.61863.71671.01614.43781.77775.35864.4843
H82.03872.44113.19142.24521.02033.77351.77774.48434.2218
H93.35932.06793.71672.61864.43781.01615.35864.48431.7777
H102.44112.03872.24523.19143.77351.02034.48434.22181.7777

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.326 C1 C2 N6 110.838
C1 N5 H7 120.786 C1 N5 H8 117.601
C2 C1 O3 122.326 C2 C1 N5 110.838
C2 N6 H9 120.786 C2 N6 H10 117.601
O3 C1 N5 126.835 O4 C2 N6 126.835
H7 N5 H8 121.613 H9 N6 H10 121.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.502      
2 C 0.502      
3 O -0.492      
4 O -0.492      
5 N -0.719      
6 N -0.719      
7 H 0.346      
8 H 0.364      
9 H 0.346      
10 H 0.364      


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 -31.053 11.513 0.000
y 11.513 -30.181 0.000
z 0.000 0.000 -34.861
Traceless
 xyz
x 1.468 11.513 0.000
y 11.513 2.776 0.000
z 0.000 0.000 -4.244
Polar
3z2-r2-8.488
x2-y2-0.872
xy11.513
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.859 0.631 0.000
y 0.631 6.665 0.000
z 0.000 0.000 2.614


<r2> (average value of r2) Å2
<r2> 145.594
(<r2>)1/2 12.066