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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-338.620104
Energy at 298.15K-338.626548
Nuclear repulsion energy234.359519
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 mPW1PW91/6-311G**
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 3602 0.00      
2 Ag 3618 3461 0.00      
3 Ag 1846 1766 0.00      
4 Ag 1609 1540 0.00      
5 Ag 1431 1369 0.00      
6 Ag 1116 1068 0.00      
7 Ag 781 747 0.00      
8 Ag 539 515 0.00      
9 Ag 402 385 0.00      
10 Au 690 660 0.95      
11 Au 497 475 230.40      
12 Au 364 348 254.16      
13 Au 97 93 4.78      
14 Bg 844 808 0.00      
15 Bg 673 643 0.00      
16 Bg 386 370 0.00      
17 Bu 3765 3602 179.71      
18 Bu 3618 3461 125.19      
19 Bu 1819 1740 666.12      
20 Bu 1602 1533 346.28      
21 Bu 1331 1273 122.34      
22 Bu 1108 1060 8.62      
23 Bu 581 556 24.65      
24 Bu 279 267 39.25      

Unscaled Zero Point Vibrational Energy (zpe) 16380.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 15670.9 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 mPW1PW91/6-311G**
ABC
0.18960 0.12551 0.07552

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.061 0.769 0.000
C2 0.061 -0.769 0.000
O3 -1.142 1.323 0.000
O4 1.142 -1.323 0.000
N5 1.142 1.357 0.000
N6 -1.142 -1.357 0.000
H7 1.217 2.358 0.000
H8 1.958 0.766 0.000
H9 -1.217 -2.358 0.000
H10 -1.958 -0.766 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54201.21522.41321.33942.38472.03942.01913.33342.4403
C21.54202.41321.21522.38471.33943.33342.44032.03942.0191
O31.21522.41323.49602.28472.68022.57593.14993.68212.2432
O42.41321.21523.49602.68022.28473.68212.24322.57593.1499
N51.33942.38472.28472.68023.54741.00401.00724.40073.7577
N62.38471.33942.68022.28473.54744.40073.75771.00401.0072
H72.03943.33342.57593.68211.00404.40071.75605.30704.4544
H82.01912.44033.14992.24321.00723.75771.75604.45444.2054
H93.33342.03943.68212.57594.40071.00405.30704.45441.7560
H102.44032.01912.24323.14993.75771.00724.45444.20541.7560

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.696 C1 C2 N6 111.519
C1 N5 H7 120.306 C1 N5 H8 118.040
C2 C1 O3 121.696 C2 C1 N5 111.519
C2 N6 H9 120.306 C2 N6 H10 118.040
O3 C1 N5 126.785 O4 C2 N6 126.785
H7 N5 H8 121.653 H9 N6 H10 121.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.339      
2 C 0.339      
3 O -0.389      
4 O -0.389      
5 N -0.457      
6 N -0.457      
7 H 0.244      
8 H 0.262      
9 H 0.244      
10 H 0.262      


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 -31.833 11.797 0.000
y 11.797 -30.759 0.000
z 0.000 0.000 -34.942
Traceless
 xyz
x 1.017 11.797 0.000
y 11.797 2.629 0.000
z 0.000 0.000 -3.646
Polar
3z2-r2-7.292
x2-y2-1.074
xy11.797
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.649 0.498 0.000
y 0.498 6.358 0.000
z 0.000 0.000 3.107


<r2> (average value of r2) Å2
<r2> 143.298
(<r2>)1/2 11.971