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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-338.247425
Energy at 298.15K-338.253591
Nuclear repulsion energy231.738185
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 3658 3608 0.00      
2 Ag 3495 3447 0.00      
3 Ag 1774 1750 0.00      
4 Ag 1530 1509 0.00      
5 Ag 1364 1345 0.00      
6 Ag 1066 1051 0.00      
7 Ag 747 736 0.00      
8 Ag 515 508 0.00      
9 Ag 382 377 0.00      
10 Au 681 671 0.02      
11 Au 466 459 184.36      
12 Au 327 323 298.02      
13 Au 100 98 0.98      
14 Bg 783 772 0.00      
15 Bg 667 658 0.00      
16 Bg 337 333 0.00      
17 Bu 3659 3608 154.21      
18 Bu 3495 3447 93.17      
19 Bu 1749 1725 475.45      
20 Bu 1534 1513 343.69      
21 Bu 1279 1261 78.80      
22 Bu 1061 1047 15.61      
23 Bu 549 542 16.72      
24 Bu 269 266 41.40      

Unscaled Zero Point Vibrational Energy (zpe) 15742.1 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 15526.4 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
0.18408 0.12368 0.07398

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 1.346 0.000
O4 1.159 -1.346 0.000
N5 1.159 1.356 0.000
N6 -1.159 -1.356 0.000
H7 1.250 2.366 0.000
H8 1.970 0.740 0.000
H9 -1.250 -2.366 0.000
H10 -1.970 -0.740 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.55161.23682.44611.35372.39522.06442.03333.35672.4348
C21.55162.44611.23682.39521.35373.35672.43482.06442.0333
O31.23682.44613.55242.31802.70232.61623.18753.71352.2379
O42.44611.23683.55242.70232.31803.71352.23792.61623.1875
N51.35372.39522.31802.70233.56821.01421.01914.43433.7665
N62.39521.35372.70232.31803.56824.43433.76651.01421.0191
H72.06443.35672.61623.71351.01424.43431.77915.35264.4742
H82.03332.43483.18752.23791.01913.76651.77914.47424.2092
H93.35672.06443.71352.61624.43431.01425.35264.47421.7791
H102.43482.03332.23793.18753.76651.01914.47424.20921.7791

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.221 C1 C2 N6 110.879
C1 N5 H7 120.664 C1 N5 H8 117.247
C2 C1 O3 122.221 C2 C1 N5 110.879
C2 N6 H9 120.664 C2 N6 H10 117.247
O3 C1 N5 126.900 O4 C2 N6 126.900
H7 N5 H8 122.088 H9 N6 H10 122.088
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 0.491      
2 C 0.491      
3 O -0.493      
4 O -0.493      
5 N -0.578      
6 N -0.578      
7 H 0.283      
8 H 0.298      
9 H 0.283      
10 H 0.298      


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 -31.119 11.463 0.000
y 11.463 -30.214 0.000
z 0.000 0.000 -34.764
Traceless
 xyz
x 1.370 11.463 0.000
y 11.463 2.727 0.000
z 0.000 0.000 -4.097
Polar
3z2-r2-8.195
x2-y2-0.905
xy11.463
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.900 0.635 0.000
y 0.635 6.713 0.000
z 0.000 0.000 2.651


<r2> (average value of r2) Å2
<r2> 145.452
(<r2>)1/2 12.060