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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-336.612084
Energy at 298.15K-336.619036
Nuclear repulsion energy232.770487
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 B3PW91/3-21G
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 3679 3537 0.00      
2 Ag 3518 3381 0.00      
3 Ag 1796 1727 0.00      
4 Ag 1615 1552 0.00      
5 Ag 1406 1351 0.00      
6 Ag 1124 1080 0.00      
7 Ag 754 725 0.00      
8 Ag 551 529 0.00      
9 Ag 401 385 0.00      
10 Au 747 718 452.02      
11 Au 691 664 223.50      
12 Au 443 425 57.77      
13 Au 149 144 13.52      
14 Bg 876 842 0.00      
15 Bg 746 717 0.00      
16 Bg 622 598 0.00      
17 Bu 3680 3537 158.53      
18 Bu 3519 3382 126.71      
19 Bu 1773 1704 340.54      
20 Bu 1632 1569 434.12      
21 Bu 1344 1291 135.85      
22 Bu 1122 1079 12.48      
23 Bu 585 562 14.33      
24 Bu 275 264 49.29      

Unscaled Zero Point Vibrational Energy (zpe) 16522.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 15881.0 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 B3PW91/3-21G
ABC
0.18246 0.12722 0.07496

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.771 0.000
C2 0.000 -0.771 0.000
O3 1.058 1.422 0.000
O4 -1.058 -1.422 0.000
N5 -1.262 1.233 0.000
N6 1.262 -1.233 0.000
H7 -1.465 2.223 0.000
H8 -2.001 0.532 0.000
H9 1.465 -2.223 0.000
H10 2.001 -0.532 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54161.24262.43501.34422.36802.06282.01473.33322.3873
C21.54162.43501.24262.36801.34423.33322.38732.06282.0147
O31.24262.43503.54552.32802.66302.64673.18553.66842.1698
O42.43501.24263.54552.66302.32803.66842.16982.64673.1855
N51.34422.36802.32802.66303.52881.01111.01794.40243.7095
N62.36801.34422.66302.32803.52884.40243.70951.01111.0179
H72.06283.33322.64673.66841.01114.40241.77435.32494.4271
H82.01472.38733.18552.16981.01793.70951.77434.42714.1401
H93.33322.06283.66842.64674.40241.01115.32494.42711.7743
H102.38732.01472.16983.18553.70951.01794.42714.14011.7743

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.629 C1 C2 N6 110.102
C1 N5 H7 121.645 C1 N5 H8 116.391
C2 C1 O3 121.629 C2 C1 N5 110.102
C2 N6 H9 121.645 C2 N6 H10 116.391
O3 C1 N5 128.269 O4 C2 N6 128.269
H7 N5 H8 121.965 H9 N6 H10 121.965
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.614      
2 C 0.614      
3 O -0.526      
4 O -0.526      
5 N -0.793      
6 N -0.793      
7 H 0.344      
8 H 0.360      
9 H 0.344      
10 H 0.360      


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 -29.535 -11.705 0.000
y -11.705 -32.180 0.000
z 0.000 0.000 -34.685
Traceless
 xyz
x 3.898 -11.705 0.000
y -11.705 -0.070 0.000
z 0.000 0.000 -3.828
Polar
3z2-r2-7.656
x2-y22.645
xy-11.705
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> 143.811
(<r2>)1/2 11.992