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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-338.269838
Energy at 298.15K-338.276050
Nuclear repulsion energy231.241431
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 PBEPBE/6-31+G**
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 3647 3606 0.00      
2 Ag 3491 3451 0.00      
3 Ag 1742 1722 0.00      
4 Ag 1534 1516 0.00      
5 Ag 1366 1350 0.00      
6 Ag 1062 1050 0.00      
7 Ag 744 735 0.00      
8 Ag 510 504 0.00      
9 Ag 383 378 0.00      
10 Au 664 656 0.00      
11 Au 463 458 199.64      
12 Au 358 354 258.21      
13 Au 96 95 6.48      
14 Bg 787 778 0.00      
15 Bg 650 643 0.00      
16 Bg 374 370 0.00      
17 Bu 3648 3606 168.97      
18 Bu 3491 3451 102.88      
19 Bu 1719 1699 633.93      
20 Bu 1537 1520 303.53      
21 Bu 1276 1262 104.42      
22 Bu 1053 1041 11.69      
23 Bu 553 546 20.01      
24 Bu 263 260 39.92      

Unscaled Zero Point Vibrational Energy (zpe) 15704.7 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 15525.6 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 PBEPBE/6-31+G**
ABC
0.18477 0.12219 0.07355

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.059 0.775 0.000
C2 0.059 -0.775 0.000
O3 -1.157 1.348 0.000
O4 1.157 -1.348 0.000
N5 1.157 1.371 0.000
N6 -1.157 -1.371 0.000
H7 1.230 2.384 0.000
H8 1.986 0.777 0.000
H9 -1.230 -2.384 0.000
H10 -1.986 -0.777 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.55361.23852.44641.35422.40972.06202.04503.36832.4735
C21.55362.44641.23852.40971.35423.36832.47352.06202.0450
O31.23852.44643.55302.31362.71892.60193.19413.73262.2811
O42.44641.23853.55302.71892.31363.73262.28112.60193.1941
N51.35422.40972.31362.71893.58711.01571.01984.44893.8062
N62.40971.35422.71892.31363.58714.44893.80621.01571.0198
H72.06203.36832.60193.73261.01574.44891.77565.36484.5090
H82.04502.47353.19412.28111.01983.80621.77564.50904.2646
H93.36832.06203.73262.60194.44891.01575.36484.50901.7756
H102.47352.04502.28113.19413.80621.01984.50904.26461.7756

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.967 C1 C2 N6 111.748
C1 N5 H7 120.268 C1 N5 H8 118.268
C2 C1 O3 121.967 C2 C1 N5 111.748
C2 N6 H9 120.268 C2 N6 H10 118.268
O3 C1 N5 126.285 O4 C2 N6 126.285
H7 N5 H8 121.464 H9 N6 H10 121.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.382      
2 C 0.382      
3 O -0.541      
4 O -0.541      
5 N -0.504      
6 N -0.504      
7 H 0.327      
8 H 0.335      
9 H 0.327      
10 H 0.335      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.274 0.433 0.000
y 0.433 7.856 0.000
z 0.000 0.000 4.478


<r2> (average value of r2) Å2
<r2> 147.272
(<r2>)1/2 12.136