return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-335.022709
Energy at 298.15K-335.029736
Nuclear repulsion energy234.324889
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 LSDA/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 3575 3516 0.00      
2 Ag 3294 3240 0.00      
3 Ag 1794 1764 0.00      
4 Ag 1527 1502 0.00      
5 Ag 1372 1349 0.00      
6 Ag 1106 1088 0.00      
7 Ag 761 748 0.00      
8 Ag 562 552 0.00      
9 Ag 394 387 0.00      
10 Au 825 812 316.43      
11 Au 684 673 269.70      
12 Au 429 422 70.00      
13 Au 171 168 11.41      
14 Bg 862 848 0.00      
15 Bg 824 811 0.00      
16 Bg 617 606 0.00      
17 Bu 3575 3517 175.07      
18 Bu 3299 3245 171.22      
19 Bu 1784 1755 273.37      
20 Bu 1546 1520 529.12      
21 Bu 1326 1304 44.82      
22 Bu 1119 1101 33.11      
23 Bu 575 566 8.78      
24 Bu 290 285 65.61      

Unscaled Zero Point Vibrational Energy (zpe) 16154.4 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 15889.5 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 LSDA/3-21G
ABC
0.18038 0.13283 0.07650

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.058 0.763 0.000
C2 0.058 -0.763 0.000
O3 -1.171 1.322 0.000
O4 1.171 -1.322 0.000
N5 1.171 1.280 0.000
N6 -1.171 -1.280 0.000
H7 1.357 2.283 0.000
H8 1.910 0.551 0.000
H9 -1.357 -2.283 0.000
H10 -1.910 -0.551 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.52971.24582.42041.33422.32642.07691.97993.31052.2706
C21.52972.42041.24582.32641.33423.31052.27062.07691.9799
O31.24582.42043.53292.34302.60252.70463.17663.60962.0138
O42.42041.24583.53292.60252.34303.60962.01382.70463.1766
N51.33422.32642.34302.60253.47051.01931.03824.36883.5847
N62.32641.33422.60252.34303.47054.36883.58471.01931.0382
H72.07693.31052.70463.60961.01934.36881.81775.31104.3249
H81.97992.27063.17662.01381.03823.58471.81774.32493.9763
H93.31052.07693.60962.70464.36881.01935.31104.32491.8177
H102.27061.97992.01383.17663.58471.03824.32493.97631.8177

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.069 C1 C2 N6 108.458
C1 N5 H7 123.335 C1 N5 H8 112.548
C2 C1 O3 121.069 C2 C1 N5 108.458
C2 N6 H9 123.335 C2 N6 H10 112.548
O3 C1 N5 130.473 O4 C2 N6 130.473
H7 N5 H8 124.117 H9 N6 H10 124.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.522      
2 C 0.522      
3 O -0.463      
4 O -0.463      
5 N -0.738      
6 N -0.738      
7 H 0.336      
8 H 0.343      
9 H 0.336      
10 H 0.343      


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 -31.255 11.465 0.000
y 11.465 -30.097 0.000
z 0.000 0.000 -34.772
Traceless
 xyz
x 1.179 11.465 0.000
y 11.465 2.917 0.000
z 0.000 0.000 -4.096
Polar
3z2-r2-8.192
x2-y2-1.158
xy11.465
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.116 0.708 0.000
y 0.708 5.707 0.000
z 0.000 0.000 1.714


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000