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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3PW91/6-31+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 B3PW91/6-31+G**
 hartrees
Energy at 0K-338.504220
Energy at 298.15K-338.510614
Nuclear repulsion energy233.138839
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 B3PW91/6-31+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 3755 3605 0.00      
2 Ag 3602 3458 0.00      
3 Ag 1817 1745 0.00      
4 Ag 1600 1536 0.00      
5 Ag 1426 1370 0.00      
6 Ag 1103 1059 0.00      
7 Ag 774 743 0.00      
8 Ag 531 510 0.00      
9 Ag 397 381 0.00      
10 Au 678 651 0.26      
11 Au 491 472 257.79      
12 Au 376 361 243.25      
13 Au 96 92 7.86      
14 Bg 821 789 0.00      
15 Bg 661 635 0.00      
16 Bg 402 386 0.00      
17 Bu 3755 3606 193.52      
18 Bu 3602 3458 131.25      
19 Bu 1792 1721 731.73      
20 Bu 1595 1531 319.01      
21 Bu 1324 1272 130.58      
22 Bu 1093 1050 11.52      
23 Bu 575 552 24.65      
24 Bu 272 261 40.94      

Unscaled Zero Point Vibrational Energy (zpe) 16268.8 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 15619.7 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 B3PW91/6-31+G**
ABC
0.18818 0.12392 0.07472

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.772 0.000
C2 0.000 -0.772 0.000
O3 1.044 1.414 0.000
O4 -1.044 -1.414 0.000
N5 -1.245 1.277 0.000
N6 1.245 -1.277 0.000
H7 -1.386 2.274 0.000
H8 -2.026 0.636 0.000
H9 1.386 -2.274 0.000
H10 2.026 -0.636 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54501.22552.42291.34332.39802.04402.03063.34752.4672
C21.54502.42291.22552.39801.34333.34752.46722.04402.0306
O31.22552.42293.51542.29332.69842.57843.16743.70422.2724
O42.42291.22553.51542.69842.29333.70422.27242.57843.1674
N51.34332.39802.29332.69843.56701.00741.01074.42003.7891
N62.39801.34332.69842.29333.56704.42003.78911.00741.0107
H72.04403.34752.57843.70421.00744.42001.75935.32734.4846
H82.03062.46723.16742.27241.01073.78911.75934.48464.2467
H93.34752.04403.70422.57844.42001.00745.32734.48461.7593
H102.46722.03062.27243.16743.78911.01074.48464.24671.7593

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.560 C1 C2 N6 112.060
C1 N5 H7 120.125 C1 N5 H8 118.541
C2 C1 O3 121.560 C2 C1 N5 112.060
C2 N6 H9 120.125 C2 N6 H10 118.541
O3 C1 N5 126.379 O4 C2 N6 126.379
H7 N5 H8 121.334 H9 N6 H10 121.334
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.436      
2 C 0.436      
3 O -0.570      
4 O -0.570      
5 N -0.550      
6 N -0.550      
7 H 0.337      
8 H 0.347      
9 H 0.337      
10 H 0.347      


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 -30.588 -12.441 0.000
y -12.441 -33.388 0.000
z 0.000 0.000 -35.924
Traceless
 xyz
x 4.068 -12.441 0.000
y -12.441 -0.132 0.000
z 0.000 0.000 -3.936
Polar
3z2-r2-7.872
x2-y22.800
xy-12.441
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.695 0.311 0.000
y 0.311 7.139 0.000
z 0.000 0.000 4.209


<r2> (average value of r2) Å2
<r2> 145.130
(<r2>)1/2 12.047