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: B1B95/STO-3G

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/STO-3G
 hartrees
Energy at 0K-333.968789
Energy at 298.15K-333.974351
Nuclear repulsion energy227.299247
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/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3868 3416 0.17      
2 A 3633 3208 0.03      
3 A 1924 1699 0.05      
4 A 1658 1464 9.03      
5 A 1383 1221 0.68      
6 A 1140 1007 1.22      
7 A 792 699 0.10      
8 A 622 549 84.78      
9 A 549 485 5.44      
10 A 459 405 198.69      
11 A 339 299 86.45      
12 A 299 264 8.36      
13 A 124 109 1.56      
14 B 3869 3416 52.94      
15 B 3636 3211 42.65      
16 B 1890 1669 133.20      
17 B 1676 1480 131.98      
18 B 1298 1146 139.35      
19 B 1137 1004 3.45      
20 B 742 655 1.40      
21 B 639 565 42.33      
22 B 546 482 27.42      
23 B 377 333 192.40      
24 B 164 145 44.76      

Unscaled Zero Point Vibrational Energy (zpe) 16381.5 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 14464.8 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/STO-3G
ABC
0.17159 0.12196 0.07184

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.083 0.787 -0.002
C2 -0.083 -0.787 -0.002
O3 1.196 1.354 -0.089
O4 -1.196 -1.354 -0.089
N5 -1.196 1.362 0.141
N6 1.196 -1.362 0.141
H7 -1.369 2.326 -0.206
H8 -1.944 0.659 -0.054
H9 1.369 -2.326 -0.206
H10 1.944 -0.659 -0.054

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.58201.25262.49541.40982.42432.12592.03113.37422.3567
C21.58202.49541.25262.42431.40983.37422.35672.12592.0311
O31.25262.49543.61382.40322.72642.74533.21593.68652.1477
O42.49541.25263.61382.72642.40323.68652.14772.74533.2159
N51.40982.42432.40322.72643.62561.03901.04494.50603.7390
N62.42431.40982.72642.40323.62564.50603.73901.03901.0449
H72.12593.37422.74533.68651.03904.50601.77025.39814.4615
H82.03112.35673.21592.14771.04493.73901.77024.46154.1043
H93.37422.12593.68652.74534.50601.03905.39814.46151.7702
H102.35672.03112.14773.21593.73901.04494.46154.10431.7702

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.948 C1 C2 N6 108.120
C1 N5 H7 119.722 C1 N5 H8 110.800
C2 C1 O3 122.948 C2 C1 N5 108.120
C2 N6 H9 119.722 C2 N6 H10 110.800
O3 C1 N5 128.916 O4 C2 N6 128.916
H7 N5 H8 116.301 H9 N6 H10 116.301
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.190      
2 C 0.190      
3 O -0.229      
4 O -0.229      
5 N -0.385      
6 N -0.385      
7 H 0.208      
8 H 0.217      
9 H 0.208      
10 H 0.217      


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 -1.534 1.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.251 -7.477 0.000
y -7.477 -29.046 0.000
z 0.000 0.000 -31.472
Traceless
 xyz
x 1.008 -7.477 0.000
y -7.477 1.316 0.000
z 0.000 0.000 -2.324
Polar
3z2-r2-4.648
x2-y2-0.205
xy-7.477
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.339 -0.234 0.000
y -0.234 4.261 0.000
z 0.000 0.000 0.882


<r2> (average value of r2) Å2
<r2> 147.933
(<r2>)1/2 12.163