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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-338.233884
Energy at 298.15K-338.239977
Nuclear repulsion energy231.627157
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 PBEPBE/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3634 3582 0.00      
2 Ag 3488 3438 0.00      
3 Ag 1776 1751 0.00      
4 Ag 1546 1524 0.00      
5 Ag 1373 1354 0.00      
6 Ag 1072 1056 0.00      
7 Ag 748 737 0.00      
8 Ag 514 507 0.00      
9 Ag 381 376 0.00      
10 Au 683 673 0.00      
11 Au 461 454 167.62      
12 Au 312 308 346.79      
13 Au 95 94 0.11      
14 Bg 786 774 0.00      
15 Bg 669 659 0.00      
16 Bg 314 309 0.00      
17 Bu 3635 3583 140.00      
18 Bu 3487 3438 92.92      
19 Bu 1749 1724 476.56      
20 Bu 1553 1530 333.88      
21 Bu 1286 1267 88.84      
22 Bu 1067 1051 14.20      
23 Bu 550 542 16.81      
24 Bu 267 264 40.24      

Unscaled Zero Point Vibrational Energy (zpe) 15722.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 15497.6 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 PBEPBE/6-31G*
ABC
0.18401 0.12353 0.07391

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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
C11.55131.23662.44701.35472.39542.06792.03903.35922.4416
C21.55132.44701.23662.39541.35473.35922.44162.06792.0390
O31.23662.44703.55352.31782.70402.61823.19153.71692.2459
O42.44701.23663.55352.70402.31783.71692.24592.61823.1915
N51.35472.39542.31782.70403.56931.01611.02034.43793.7742
N62.39541.35472.70402.31783.56934.43793.77421.01611.0203
H72.06793.35922.61823.71691.01614.43791.77775.35864.4847
H82.03902.44163.19152.24591.02033.77421.77774.48474.2227
H93.35922.06793.71692.61824.43791.01615.35864.48471.7777
H102.44162.03902.24593.19153.77421.02034.48474.22271.7777

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.330 C1 C2 N6 110.853
C1 N5 H7 120.776 C1 N5 H8 117.615
C2 C1 O3 122.330 C2 C1 N5 110.853
C2 N6 H9 120.776 C2 N6 H10 117.615
O3 C1 N5 126.816 O4 C2 N6 126.816
H7 N5 H8 121.609 H9 N6 H10 121.609
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.502      
2 C 0.502      
3 O -0.493      
4 O -0.493      
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 -31.052 11.512 0.000
y 11.512 -30.179 0.000
z 0.000 0.000 -34.861
Traceless
 xyz
x 1.467 11.512 0.000
y 11.512 2.778 0.000
z 0.000 0.000 -4.245
Polar
3z2-r2-8.490
x2-y2-0.874
xy11.512
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.860 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> 145.597
(<r2>)1/2 12.066