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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/SDD
 hartrees
Energy at 0K-336.636452
Energy at 298.15K-336.643555
Nuclear repulsion energy233.274586
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 HF/SDD
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 3986 3589 0.00      
2 Ag 3832 3450 0.00      
3 Ag 1885 1698 0.00      
4 Ag 1793 1614 0.00      
5 Ag 1581 1424 0.00      
6 Ag 1231 1108 0.00      
7 Ag 834 751 0.00      
8 Ag 586 528 0.00      
9 Ag 436 392 0.00      
10 Au 795 716 953.21      
11 Au 687 618 1.23      
12 Au 475 428 9.36      
13 Au 102 92 23.72      
14 Bg 923 831 0.00      
15 Bg 756 681 0.00      
16 Bg 660 595 0.00      
17 Bu 3987 3590 210.40      
18 Bu 3832 3451 216.84      
19 Bu 1832 1650 966.68      
20 Bu 1795 1616 332.64      
21 Bu 1436 1293 304.16      
22 Bu 1216 1095 0.17      
23 Bu 628 565 43.12      
24 Bu 298 268 43.53      

Unscaled Zero Point Vibrational Energy (zpe) 17792.4 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 16020.3 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 HF/SDD
ABC
0.18883 0.12368 0.07473

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.767 0.000
C2 0.000 -0.767 0.000
O3 1.064 1.385 0.000
O4 -1.064 -1.385 0.000
N5 -1.228 1.310 0.000
N6 1.228 -1.310 0.000
H7 -1.331 2.298 0.000
H8 -2.030 0.719 0.000
H9 1.331 -2.298 0.000
H10 2.030 -0.719 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.53371.23062.40081.34292.41262.02902.03043.34172.5156
C21.53372.40081.23062.41261.34293.34172.51562.02902.0304
O31.23062.40083.49342.29352.69992.56303.16473.69342.3155
O42.40081.23063.49342.69992.29353.69342.31552.56303.1647
N51.34292.41262.29352.69993.59110.99410.99554.42353.8381
N62.41261.34292.69992.29353.59114.42353.83810.99410.9955
H72.02903.34172.56303.69340.99414.42351.72705.31194.5166
H82.03042.51563.16472.31550.99553.83811.72704.51664.3069
H93.34172.02903.69342.56304.42350.99415.31194.51661.7270
H102.51562.03042.31553.16473.83810.99554.51664.30691.7270

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 120.171 C1 C2 N6 113.836
C1 N5 H7 119.763 C1 N5 H8 119.780
C2 C1 O3 120.171 C2 C1 N5 113.836
C2 N6 H9 119.763 C2 N6 H10 119.780
O3 C1 N5 125.993 O4 C2 N6 125.993
H7 N5 H8 120.457 H9 N6 H10 120.457
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.421      
2 C 0.421      
3 O -0.439      
4 O -0.439      
5 N -0.805      
6 N -0.805      
7 H 0.396      
8 H 0.427      
9 H 0.396      
10 H 0.427      


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 -26.311 -11.921 0.007
y -11.921 -41.128 -0.006
z 0.007 -0.006 -36.214
Traceless
 xyz
x 12.360 -11.921 0.007
y -11.921 -9.865 -0.006
z 0.007 -0.006 -2.495
Polar
3z2-r2-4.990
x2-y214.817
xy-11.921
xz0.007
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.329 -0.429 0.001
y -0.429 7.182 0.001
z 0.001 0.001 2.639


<r2> (average value of r2) Å2
<r2> 145.944
(<r2>)1/2 12.081