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: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-338.752965
Energy at 298.15K-338.759348
HF Energy-338.752965
Nuclear repulsion energy233.448096
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 B3LYPultrafine/aug-cc-pVTZ
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 3709 3588 0.00      
2 Ag 3571 3455 0.00      
3 Ag 1777 1719 0.00      
4 Ag 1591 1540 0.00      
5 Ag 1407 1361 0.00      
6 Ag 1103 1068 0.00      
7 Ag 763 738 0.00      
8 Ag 527 510 0.00      
9 Ag 397 384 0.00      
10 Au 673 651 1.21      
11 Au 486 470 177.65      
12 Au 363 351 231.00      
13 Au 94 91 7.88      
14 Bg 836 809 0.00      
15 Bg 655 634 0.00      
16 Bg 385 373 0.00      
17 Bu 3709 3589 171.18      
18 Bu 3571 3455 112.72      
19 Bu 1753 1696 699.61      
20 Bu 1593 1541 291.45      
21 Bu 1307 1265 150.38      
22 Bu 1091 1055 3.45      
23 Bu 580 562 27.00      
24 Bu 273 265 39.29      

Unscaled Zero Point Vibrational Energy (zpe) 16107.1 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 15583.6 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 B3LYPultrafine/aug-cc-pVTZ
ABC
0.18948 0.12355 0.07479

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.061 0.774 0.000
C2 0.061 -0.774 0.000
O3 -1.141 1.332 0.000
O4 1.141 -1.332 0.000
N5 1.141 1.376 0.000
N6 -1.141 -1.376 0.000
H7 1.200 2.379 0.000
H8 1.974 0.811 0.000
H9 -1.200 -2.379 0.000
H10 -1.974 -0.811 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.55271.21652.42541.34442.40592.04072.03523.35212.4842
C21.55272.42541.21652.40591.34443.35212.48422.04072.0352
O31.21652.42543.50912.28342.70812.56443.15893.71162.2991
O42.42541.21653.50912.70812.28343.71162.29912.56443.1589
N51.34442.40592.28342.70813.57511.00471.00624.42453.8061
N62.40591.34442.70812.28343.57514.42453.80611.00471.0062
H72.04073.35212.56443.71161.00474.42451.74885.32834.4995
H82.03522.48423.15892.29911.00623.80611.74884.49954.2680
H93.35212.04073.71162.56444.42451.00475.32834.49951.7488
H102.48422.03522.29913.15893.80611.00624.49954.26801.7488

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.822 C1 C2 N6 112.095
C1 N5 H7 119.918 C1 N5 H8 119.251
C2 C1 O3 121.822 C2 C1 N5 112.095
C2 N6 H9 119.918 C2 N6 H10 119.251
O3 C1 N5 126.082 O4 C2 N6 126.082
H7 N5 H8 120.831 H9 N6 H10 120.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.624      
2 C 0.624      
3 O -0.661      
4 O -0.661      
5 N -0.135      
6 N -0.135      
7 H 0.058      
8 H 0.114      
9 H 0.058      
10 H 0.114      


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 -33.077 12.125 0.000
y 12.125 -31.844 0.000
z 0.000 0.000 -35.812
Traceless
 xyz
x 0.751 12.125 0.000
y 12.125 2.600 0.000
z 0.000 0.000 -3.351
Polar
3z2-r2-6.702
x2-y2-1.232
xy12.125
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.168 0.448 0.000
y 0.448 8.092 0.000
z 0.000 0.000 4.912


<r2> (average value of r2) Å2
<r2> 145.190
(<r2>)1/2 12.049