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: B1B95/6-31+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 B1B95/6-31+G**
 hartrees
Energy at 0K-338.517009
Energy at 298.15K-338.523387
Nuclear repulsion energy233.631816
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 B1B95/6-31+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 3763 3600 0.00      
2 Ag 3609 3452 0.00      
3 Ag 1831 1751 0.00      
4 Ag 1595 1526 0.00      
5 Ag 1430 1368 0.00      
6 Ag 1096 1048 0.00      
7 Ag 775 741 0.00      
8 Ag 530 507 0.00      
9 Ag 393 376 0.00      
10 Au 676 646 0.86      
11 Au 487 466 248.43      
12 Au 377 360 247.65      
13 Au 97 93 8.13      
14 Bg 819 784 0.00      
15 Bg 658 630 0.00      
16 Bg 399 382 0.00      
17 Bu 3764 3601 195.88      
18 Bu 3609 3453 138.60      
19 Bu 1807 1729 751.56      
20 Bu 1586 1517 322.79      
21 Bu 1326 1269 124.58      
22 Bu 1085 1038 14.25      
23 Bu 568 543 25.07      
24 Bu 272 260 40.44      

Unscaled Zero Point Vibrational Energy (zpe) 16275.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 15569.3 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 B1B95/6-31+G**
ABC
0.18872 0.12463 0.07506

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.057 0.769 0.000
C2 0.057 -0.769 0.000
O3 -1.145 1.328 0.000
O4 1.145 -1.328 0.000
N5 1.145 1.362 0.000
N6 -1.145 -1.362 0.000
H7 1.213 2.366 0.000
H8 1.969 0.780 0.000
H9 -1.213 -2.366 0.000
H10 -1.969 -0.780 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54151.22302.41681.34082.39242.04092.02663.34082.4604
C21.54152.41681.22302.39241.34083.34082.46042.04092.0266
O31.22302.41683.50682.29012.69032.57623.16203.69462.2634
O42.41681.22303.50682.69032.29013.69462.26342.57623.1620
N51.34082.39242.29012.69033.55911.00591.00934.41133.7799
N62.39241.34082.69032.29013.55914.41133.77991.00591.0093
H72.04093.34082.57623.69461.00594.41131.75715.31764.4747
H82.02662.46043.16202.26341.00933.77991.75714.47474.2362
H93.34082.04093.69462.57624.41131.00595.31764.47471.7571
H102.46042.02662.26343.16203.77991.00934.47474.23621.7571

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.483 C1 C2 N6 112.018
C1 N5 H7 120.163 C1 N5 H8 118.476
C2 C1 O3 121.483 C2 C1 N5 112.018
C2 N6 H9 120.163 C2 N6 H10 118.476
O3 C1 N5 126.499 O4 C2 N6 126.499
H7 N5 H8 121.360 H9 N6 H10 121.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.444      
2 C 0.444      
3 O -0.571      
4 O -0.571      
5 N -0.550      
6 N -0.550      
7 H 0.333      
8 H 0.344      
9 H 0.333      
10 H 0.344      


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 -32.487 12.439 0.000
y 12.439 -31.550 0.000
z 0.000 0.000 -35.912
Traceless
 xyz
x 1.244 12.439 0.000
y 12.439 2.650 0.000
z 0.000 0.000 -3.894
Polar
3z2-r2-7.787
x2-y2-0.937
xy12.439
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.676 0.308 0.000
y 0.308 7.115 0.000
z 0.000 0.000 4.204


<r2> (average value of r2) Å2
<r2> 144.572
(<r2>)1/2 12.024