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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-338.473358
Energy at 298.15K-338.479657
Nuclear repulsion energy233.385700
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 B3PW91/6-31G*
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 3743 3581 0.00      
2 Ag 3603 3447 0.00      
3 Ag 1848 1768 0.00      
4 Ag 1614 1544 0.00      
5 Ag 1435 1373 0.00      
6 Ag 1112 1064 0.00      
7 Ag 777 743 0.00      
8 Ag 534 511 0.00      
9 Ag 396 379 0.00      
10 Au 692 662 0.35      
11 Au 488 467 238.39      
12 Au 341 326 336.83      
13 Au 96 92 1.55      
14 Bg 821 786 0.00      
15 Bg 676 646 0.00      
16 Bg 353 338 0.00      
17 Bu 3744 3582 166.53      
18 Bu 3603 3447 123.61      
19 Bu 1820 1741 581.26      
20 Bu 1611 1541 344.85      
21 Bu 1333 1276 118.82      
22 Bu 1104 1056 12.81      
23 Bu 573 548 22.05      
24 Bu 275 263 40.41      

Unscaled Zero Point Vibrational Energy (zpe) 16294.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 15589.1 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 B3PW91/6-31G*
ABC
0.18756 0.12485 0.07496

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.772 0.000
C2 0.000 -0.772 0.000
O3 1.039 1.418 0.000
O4 -1.039 -1.418 0.000
N5 -1.252 1.262 0.000
N6 1.252 -1.262 0.000
H7 -1.411 2.257 0.000
H8 -2.021 0.606 0.000
H9 1.411 -2.257 0.000
H10 2.021 -0.606 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54341.22392.42381.34422.38792.04912.02803.34162.4462
C21.54342.42381.22392.38791.34423.34162.44622.04912.0280
O31.22392.42383.51622.29642.68822.59053.16653.69382.2496
O42.42381.22393.51622.68822.29643.69382.24962.59053.1665
N51.34422.38792.29642.68823.55471.00801.01114.41313.7685
N62.38791.34422.68822.29643.55474.41313.76851.00801.0111
H72.04913.34162.59053.69381.00804.41311.76015.32424.4701
H82.02802.44623.16652.24961.01113.76851.76014.47014.2204
H93.34162.04913.69382.59054.41311.00805.32424.47011.7601
H102.44622.02802.24963.16653.76851.01114.47014.22041.7601

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.872 C1 C2 N6 111.385
C1 N5 H7 120.506 C1 N5 H8 118.181
C2 C1 O3 121.872 C2 C1 N5 111.385
C2 N6 H9 120.506 C2 N6 H10 118.181
O3 C1 N5 126.743 O4 C2 N6 126.743
H7 N5 H8 121.313 H9 N6 H10 121.313
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.552     0.547
2 C 0.552     0.572
3 O -0.529     -0.499
4 O -0.529     -0.507
5 N -0.781     -0.882
6 N -0.781     -0.893
7 H 0.368     0.438
8 H 0.389     0.391
9 H 0.368     0.440
10 H 0.389     0.392


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 0.001 0.003 0.000 0.003


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.296 -11.672 0.000
y -11.672 -32.027 0.000
z 0.000 0.000 -34.732
Traceless
 xyz
x 4.083 -11.672 0.000
y -11.672 -0.012 0.000
z 0.000 0.000 -4.071
Polar
3z2-r2-8.142
x2-y22.730
xy-11.672
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 143.902
(<r2>)1/2 11.996