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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-338.371052
Energy at 298.15K-338.377909
Nuclear repulsion energy232.041879
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 3760 3601 0.00      
2 Ag 3605 3452 0.00      
3 Ag 1774 1699 0.00      
4 Ag 1633 1564 0.00      
5 Ag 1466 1404 0.00      
6 Ag 1127 1080 0.00      
7 Ag 783 750 0.00      
8 Ag 546 523 0.00      
9 Ag 405 388 0.00      
10 Au 737 706 738.45      
11 Au 676 647 36.53      
12 Au 426 408 22.11      
13 Au 117 112 18.53      
14 Bg 823 788 0.00      
15 Bg 712 682 0.00      
16 Bg 642 614 0.00      
17 Bu 3760 3601 146.35      
18 Bu 3605 3452 131.86      
19 Bu 1739 1666 516.50      
20 Bu 1649 1579 332.31      
21 Bu 1362 1305 135.86      
22 Bu 1122 1074 12.54      
23 Bu 584 560 20.99      
24 Bu 276 264 43.98      

Unscaled Zero Point Vibrational Energy (zpe) 16664.2 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 15959.3 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 B3PW91/6-31G
ABC
0.18434 0.12441 0.07428

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 0.764 0.000
C2 0.000 -0.764 0.000
O3 1.070 1.412 0.000
O4 -1.070 -1.412 0.000
N5 -1.244 1.279 0.000
N6 1.244 -1.279 0.000
H7 -1.384 2.276 0.000
H8 -2.028 0.642 0.000
H9 1.384 -2.276 0.000
H10 2.028 -0.642 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.52891.25042.42491.34592.39232.04922.03163.34042.4677
C21.52892.42491.25042.39231.34593.34042.46772.04922.0316
O31.25042.42493.54252.31722.69652.60143.19203.70092.2659
O42.42491.25043.54252.69652.31723.70092.26592.60143.1920
N51.34592.39232.31722.69653.56821.00651.01074.42063.7938
N62.39231.34592.69652.31723.56824.42063.79381.00651.0107
H72.04923.34042.60143.70091.00654.42061.75655.32714.4891
H82.03162.46773.19202.26591.01073.79381.75654.48914.2540
H93.34042.04923.70092.60144.42061.00655.32714.48911.7565
H102.46772.03162.26593.19203.79381.01074.48914.25401.7565

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.173 C1 C2 N6 112.486
C1 N5 H7 120.493 C1 N5 H8 118.408
C2 C1 O3 121.173 C2 C1 N5 112.486
C2 N6 H9 120.493 C2 N6 H10 118.408
O3 C1 N5 126.341 O4 C2 N6 126.341
H7 N5 H8 121.100 H9 N6 H10 121.100
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 0.496      
2 C 0.496      
3 O -0.480      
4 O -0.480      
5 N -0.761      
6 N -0.761      
7 H 0.362      
8 H 0.383      
9 H 0.362      
10 H 0.383      


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 -30.459 -12.861 0.000
y -12.861 -32.774 0.000
z 0.000 0.000 -35.239
Traceless
 xyz
x 3.548 -12.861 0.000
y -12.861 0.075 0.000
z 0.000 0.000 -3.622
Polar
3z2-r2-7.245
x2-y22.315
xy-12.861
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> 145.509
(<r2>)1/2 12.063