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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: PBEPBE/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-338.264674
Energy at 298.15K-338.270820
Nuclear repulsion energy232.368028
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(2df,p)
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 3657 3619 0.00      
2 Ag 3495 3459 0.00      
3 Ag 1768 1750 0.00      
4 Ag 1520 1504 0.00      
5 Ag 1359 1345 0.00      
6 Ag 1063 1052 0.00      
7 Ag 746 738 0.00      
8 Ag 514 508 0.00      
9 Ag 380 376 0.00      
10 Au 685 678 0.05      
11 Au 468 463 118.70      
12 Au 309 306 268.23      
13 Au 101 99 1.03      
14 Bg 806 798 0.00      
15 Bg 673 666 0.00      
16 Bg 320 316 0.00      
17 Bu 3657 3620 154.74      
18 Bu 3495 3459 90.27      
19 Bu 1746 1728 463.75      
20 Bu 1523 1508 331.14      
21 Bu 1272 1259 77.10      
22 Bu 1057 1046 12.30      
23 Bu 547 542 17.38      
24 Bu 268 265 40.95      

Unscaled Zero Point Vibrational Energy (zpe) 15712.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 15550.3 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(2df,p)
ABC
0.18497 0.12436 0.07436

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.065 0.773 0.000
C2 0.065 -0.773 0.000
O3 -1.156 1.341 0.000
O4 1.156 -1.341 0.000
N5 1.156 1.353 0.000
N6 -1.156 -1.353 0.000
H7 1.255 2.360 0.000
H8 1.961 0.731 0.000
H9 -1.255 -2.360 0.000
H10 -1.961 -0.731 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.55121.23042.44151.35182.38962.06462.02643.35172.4201
C21.55122.44151.23042.38961.35183.35172.42012.06462.0264
O31.23042.44153.54172.31222.69452.61763.17633.70322.2232
O42.44151.23043.54172.69452.31223.70322.22322.61763.1763
N51.35182.38962.31222.69453.55941.01231.01744.42763.7496
N62.38961.35182.69452.31223.55944.42763.74961.01231.0174
H72.06463.35172.61763.70321.01234.42761.77595.34674.4609
H82.02642.42013.17632.22321.01743.74961.77594.46094.1857
H93.35172.06463.70322.61764.42761.01235.34674.46091.7759
H102.42012.02642.22323.17633.74961.01744.46094.18571.7759

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.323 C1 C2 N6 110.614
C1 N5 H7 121.027 C1 N5 H8 116.886
C2 C1 O3 122.323 C2 C1 N5 110.614
C2 N6 H9 121.027 C2 N6 H10 116.886
O3 C1 N5 127.063 O4 C2 N6 127.063
H7 N5 H8 122.087 H9 N6 H10 122.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.320      
2 C 0.320      
3 O -0.353      
4 O -0.353      
5 N -0.517      
6 N -0.517      
7 H 0.270      
8 H 0.280      
9 H 0.270      
10 H 0.280      


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 -31.258 11.192 0.000
y 11.192 -30.098 0.000
z 0.000 0.000 -34.511
Traceless
 xyz
x 1.047 11.192 0.000
y 11.192 2.786 0.000
z 0.000 0.000 -3.833
Polar
3z2-r2-7.666
x2-y2-1.160
xy11.192
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.047 0.679 0.000
y 0.679 7.140 0.000
z 0.000 0.000 3.322


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000