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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-338.412371
Energy at 298.15K-338.419266
Nuclear repulsion energy232.558291
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 mPW1PW91/6-31G
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 3784 3582 0.00      
2 Ag 3628 3434 0.00      
3 Ag 1792 1696 0.00      
4 Ag 1648 1560 0.00      
5 Ag 1484 1405 0.00      
6 Ag 1138 1077 0.00      
7 Ag 792 750 0.00      
8 Ag 552 522 0.00      
9 Ag 409 387 0.00      
10 Au 746 706 764.98      
11 Au 679 643 26.04      
12 Au 430 407 20.58      
13 Au 117 110 18.88      
14 Bg 830 785 0.00      
15 Bg 717 679 0.00      
16 Bg 648 613 0.00      
17 Bu 3784 3582 153.41      
18 Bu 3628 3434 140.49      
19 Bu 1757 1663 538.82      
20 Bu 1661 1572 335.09      
21 Bu 1375 1302 137.82      
22 Bu 1132 1071 12.80      
23 Bu 589 557 22.00      
24 Bu 279 265 44.03      

Unscaled Zero Point Vibrational Energy (zpe) 16798.3 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 15901.2 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 mPW1PW91/6-31G
ABC
0.18512 0.12502 0.07462

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.049 0.761 0.000
C2 0.049 -0.761 0.000
O3 -1.156 1.335 0.000
O4 1.156 -1.335 0.000
N5 1.156 1.354 0.000
N6 -1.156 -1.354 0.000
H7 1.230 2.356 0.000
H8 1.979 0.771 0.000
H9 -1.230 -2.356 0.000
H10 -1.979 -0.771 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.52501.24762.41791.34302.38762.04472.02803.33362.4645
C21.52502.41791.24762.38761.34303.33362.46452.04472.0280
O31.24762.41793.53282.31242.68972.59563.18593.69242.2614
O42.41791.24763.53282.68972.31243.69242.26142.59563.1859
N51.34302.38762.31242.68973.56141.00471.00894.41173.7878
N62.38761.34302.68972.31243.56144.41173.78781.00471.0089
H72.04473.33362.59563.69241.00474.41171.75335.31624.4811
H82.02802.46453.18592.26141.00893.78781.75334.48114.2482
H93.33362.04473.69242.59564.41171.00475.31624.48111.7533
H102.46452.02802.26143.18593.78781.00894.48114.24821.7533

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.075 C1 C2 N6 112.559
C1 N5 H7 120.448 C1 N5 H8 118.454
C2 C1 O3 121.075 C2 C1 N5 112.559
C2 N6 H9 120.448 C2 N6 H10 118.454
O3 C1 N5 126.365 O4 C2 N6 126.365
H7 N5 H8 121.098 H9 N6 H10 121.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.509      
2 C 0.509      
3 O -0.488      
4 O -0.488      
5 N -0.774      
6 N -0.774      
7 H 0.366      
8 H 0.387      
9 H 0.366      
10 H 0.387      


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 -32.202 12.907 0.000
y 12.907 -31.167 0.000
z 0.000 0.000 -35.253
Traceless
 xyz
x 1.009 12.907 0.000
y 12.907 2.560 0.000
z 0.000 0.000 -3.569
Polar
3z2-r2-7.138
x2-y2-1.034
xy12.907
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.614 0.327 0.000
y 0.327 5.762 0.000
z 0.000 0.000 2.153


<r2> (average value of r2) Å2
<r2> 144.978
(<r2>)1/2 12.041