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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-338.487118
Energy at 298.15K-338.493486
Nuclear repulsion energy233.490557
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 3765 3609 0.00      
2 Ag 3609 3459 0.00      
3 Ag 1845 1768 0.00      
4 Ag 1599 1533 0.00      
5 Ag 1426 1366 0.00      
6 Ag 1107 1061 0.00      
7 Ag 775 743 0.00      
8 Ag 535 513 0.00      
9 Ag 397 380 0.00      
10 Au 690 661 0.21      
11 Au 494 474 258.98      
12 Au 354 340 281.05      
13 Au 100 96 3.04      
14 Bg 819 785 0.00      
15 Bg 675 647 0.00      
16 Bg 376 361 0.00      
17 Bu 3766 3609 180.65      
18 Bu 3609 3459 122.24      
19 Bu 1818 1743 579.22      
20 Bu 1593 1526 357.75      
21 Bu 1327 1272 106.95      
22 Bu 1099 1054 14.21      
23 Bu 573 549 21.95      
24 Bu 277 265 41.54      

Unscaled Zero Point Vibrational Energy (zpe) 16313.0 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 15634.4 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 B3PW91/6-31G**
ABC
0.18762 0.12500 0.07502

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 1.041 1.416 0.000
O4 -1.041 -1.416 0.000
N5 -1.251 1.262 0.000
N6 1.251 -1.262 0.000
H7 -1.407 2.256 0.000
H8 -2.015 0.603 0.000
H9 1.407 -2.256 0.000
H10 2.015 -0.603 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54381.22422.42311.34322.38782.04542.02233.33912.4393
C21.54382.42311.22422.38781.34323.33912.43932.04542.0223
O31.22422.42313.51532.29662.68672.58833.16263.69062.2416
O42.42311.22423.51532.68672.29663.69062.24162.58833.1626
N51.34322.38782.29662.68673.55361.00621.00994.40943.7607
N62.38781.34322.68672.29663.55364.40943.76071.00621.0099
H72.04543.33912.58833.69061.00624.40941.76175.31814.4594
H82.02232.43933.16262.24161.00993.76071.76174.45944.2067
H93.33912.04543.69062.58834.40941.00625.31814.45941.7617
H102.43932.02232.24163.16263.76071.00994.45944.20671.7617

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.761 C1 C2 N6 111.410
C1 N5 H7 120.379 C1 N5 H8 117.806
C2 C1 O3 121.761 C2 C1 N5 111.410
C2 N6 H9 120.379 C2 N6 H10 117.806
O3 C1 N5 126.829 O4 C2 N6 126.829
H7 N5 H8 121.815 H9 N6 H10 121.815
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 0.543      
2 C 0.543      
3 O -0.530      
4 O -0.530      
5 N -0.638      
6 N -0.638      
7 H 0.304      
8 H 0.322      
9 H 0.304      
10 H 0.322      


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 -29.393 -11.627 0.000
y -11.627 -32.028 0.000
z 0.000 0.000 -34.633
Traceless
 xyz
x 3.938 -11.627 0.000
y -11.627 -0.015 0.000
z 0.000 0.000 -3.922
Polar
3z2-r2-7.844
x2-y22.635
xy-11.627
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> 143.764
(<r2>)1/2 11.990