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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: HF/6-311G*

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/6-311G*
 hartrees
Energy at 0K-336.810148
Energy at 298.15K-336.816809
Nuclear repulsion energy236.077812
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/6-311G*
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 3990 3609 0.00      
2 Ag 3854 3486 0.00      
3 Ag 1990 1800 0.00      
4 Ag 1801 1629 0.00      
5 Ag 1565 1416 0.00      
6 Ag 1224 1107 0.00      
7 Ag 842 762 0.00      
8 Ag 582 526 0.00      
9 Ag 441 399 0.00      
10 Au 717 648 16.82      
11 Au 530 479 251.71      
12 Au 378 342 415.49      
13 Au 83 75 3.56      
14 Bg 933 844 0.00      
15 Bg 686 620 0.00      
16 Bg 382 345 0.00      
17 Bu 3991 3609 169.84      
18 Bu 3854 3486 150.36      
19 Bu 1944 1758 977.55      
20 Bu 1789 1618 320.28      
21 Bu 1418 1282 284.59      
22 Bu 1205 1090 0.92      
23 Bu 636 575 42.14      
24 Bu 306 277 37.33      

Unscaled Zero Point Vibrational Energy (zpe) 17570.3 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 15890.6 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 HF/6-311G*
ABC
0.19505 0.12527 0.07628

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

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 1.023 1.386 0.000
O4 -1.023 -1.386 0.000
N5 -1.230 1.285 0.000
N6 1.230 -1.285 0.000
H7 -1.350 2.269 0.000
H8 -2.018 0.683 0.000
H9 1.350 -2.269 0.000
H10 2.018 -0.683 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54041.19402.38661.33372.39532.01672.01963.32512.4868
C21.54042.38661.19402.39531.33373.32512.48682.01672.0196
O31.19402.38663.44532.25562.67912.53153.12083.66922.2962
O42.38661.19403.44532.67912.25563.66922.29622.53153.1208
N51.33372.39532.25562.67913.55810.99090.99084.39143.7980
N62.39531.33372.67912.25563.55814.39143.79800.99090.9908
H72.01673.32512.53153.66920.99094.39141.72015.27954.4782
H82.01962.48683.12082.29620.99083.79801.72014.47824.2606
H93.32512.01673.66922.53154.39140.99095.27954.47821.7201
H102.48682.01962.29623.12083.79800.99084.47824.26061.7201

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.051 C1 C2 N6 112.701
C1 N5 H7 119.619 C1 N5 H8 119.920
C2 C1 O3 121.051 C2 C1 N5 112.701
C2 N6 H9 119.619 C2 N6 H10 119.920
O3 C1 N5 126.248 O4 C2 N6 126.248
H7 N5 H8 120.461 H9 N6 H10 120.461
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.579 0.766   0.714
2 C 0.579 0.766   0.759
3 O -0.487 -0.622   -0.596
4 O -0.487 -0.622   -0.608
5 N -0.903 -1.046   -1.046
6 N -0.903 -1.046   -1.059
7 H 0.391 0.474   0.480
8 H 0.421 0.429   0.436
9 H 0.391 0.474   0.480
10 H 0.421 0.429   0.439


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 0.012 -0.016 0.000 0.020


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.737 -12.132 0.000
y -12.132 -33.188 0.000
z 0.000 0.000 -35.199
Traceless
 xyz
x 3.457 -12.132 0.000
y -12.132 -0.220 0.000
z 0.000 0.000 -3.237
Polar
3z2-r2-6.474
x2-y22.451
xy-12.132
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.839 -0.088 0.000
y -0.088 5.457 0.000
z 0.000 0.000 2.914


<r2> (average value of r2) Å2
<r2> 142.559
(<r2>)1/2 11.940