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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-336.617056
Energy at 298.15K-336.624010
Nuclear repulsion energy233.434058
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 B1B95/3-21G
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 3685 3525 0.00      
2 Ag 3518 3366 0.00      
3 Ag 1806 1728 0.00      
4 Ag 1613 1543 0.00      
5 Ag 1411 1350 0.00      
6 Ag 1123 1075 0.00      
7 Ag 759 727 0.00      
8 Ag 552 528 0.00      
9 Ag 396 379 0.00      
10 Au 754 722 479.78      
11 Au 691 661 197.75      
12 Au 443 423 53.05      
13 Au 151 145 13.51      
14 Bg 873 835 0.00      
15 Bg 751 718 0.00      
16 Bg 626 599 0.00      
17 Bu 3685 3525 160.18      
18 Bu 3519 3367 134.39      
19 Bu 1785 1708 360.60      
20 Bu 1629 1559 428.81      
21 Bu 1346 1288 132.87      
22 Bu 1122 1073 14.35      
23 Bu 584 558 13.91      
24 Bu 270 259 50.24      

Unscaled Zero Point Vibrational Energy (zpe) 16545.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 15829.5 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 B1B95/3-21G
ABC
0.18278 0.12851 0.07546

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.059 0.766 0.000
C2 0.059 -0.766 0.000
O3 -1.163 1.331 0.000
O4 1.163 -1.331 0.000
N5 1.163 1.318 0.000
N6 -1.163 -1.318 0.000
H7 1.295 2.319 0.000
H8 1.947 0.671 0.000
H9 -1.295 -2.319 0.000
H10 -1.947 -0.671 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.53711.23982.42701.34102.35892.06062.00843.32392.3727
C21.53712.42701.23982.35891.34103.32392.37272.06062.0084
O31.23982.42703.53442.32602.64902.64983.17923.65212.1495
O42.42701.23983.53442.64902.32603.65212.14952.64983.1792
N51.34102.35892.32602.64903.51611.00941.01694.39043.6918
N62.35891.34102.64902.32603.51614.39043.69181.00941.0169
H72.06063.32392.64983.65211.00944.39041.77245.31284.4106
H82.00842.37273.17922.14951.01693.69181.77244.41064.1187
H93.32392.06063.65212.64984.39041.00945.31284.41061.7724
H102.37272.00842.14953.17923.69181.01694.41064.11871.7724

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.485 C1 C2 N6 109.903
C1 N5 H7 121.853 C1 N5 H8 116.132
C2 C1 O3 121.485 C2 C1 N5 109.903
C2 N6 H9 121.853 C2 N6 H10 116.132
O3 C1 N5 128.612 O4 C2 N6 128.612
H7 N5 H8 122.014 H9 N6 H10 122.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.612      
2 C 0.612      
3 O -0.523      
4 O -0.523      
5 N -0.788      
6 N -0.788      
7 H 0.341      
8 H 0.358      
9 H 0.341      
10 H 0.358      


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 -31.350 11.674 0.000
y 11.674 -30.389 0.000
z 0.000 0.000 -34.627
Traceless
 xyz
x 1.158 11.674 0.000
y 11.674 2.600 0.000
z 0.000 0.000 -3.758
Polar
3z2-r2-7.516
x2-y2-0.961
xy11.674
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.930 0.473 0.000
y 0.473 5.426 0.000
z 0.000 0.000 1.696


<r2> (average value of r2) Å2
<r2> 142.983
(<r2>)1/2 11.958