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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-338.610473
Energy at 298.15K-338.616847
Nuclear repulsion energy234.112532
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/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 3736 3592 0.00      
2 Ag 3589 3451 0.00      
3 Ag 1811 1741 0.00      
4 Ag 1587 1526 0.00      
5 Ag 1416 1361 0.00      
6 Ag 1103 1060 0.00      
7 Ag 770 740 0.00      
8 Ag 529 509 0.00      
9 Ag 394 379 0.00      
10 Au 685 659 0.57      
11 Au 489 470 173.32      
12 Au 351 337 236.49      
13 Au 96 93 6.05      
14 Bg 838 806 0.00      
15 Bg 668 642 0.00      
16 Bg 374 359 0.00      
17 Bu 3737 3593 172.49      
18 Bu 3590 3452 113.41      
19 Bu 1787 1718 644.39      
20 Bu 1583 1522 320.18      
21 Bu 1317 1267 119.14      
22 Bu 1092 1050 7.95      
23 Bu 575 553 24.20      
24 Bu 273 262 40.64      

Unscaled Zero Point Vibrational Energy (zpe) 16193.3 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 15571.5 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 B3PW91/cc-pVTZ
ABC
0.18956 0.12497 0.07532

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

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 1.035 1.414 0.000
O4 -1.035 -1.414 0.000
N5 -1.245 1.265 0.000
N6 1.245 -1.265 0.000
H7 -1.399 2.257 0.000
H8 -2.012 0.612 0.000
H9 1.399 -2.257 0.000
H10 2.012 -0.612 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54381.21742.41801.33942.38732.04042.01813.33632.4415
C21.54382.41801.21742.38731.33943.33632.44152.04042.0181
O31.21742.41803.50352.28472.68682.57593.15013.68842.2486
O42.41801.21743.50352.68682.28473.68842.24862.57593.1501
N51.33942.38732.28472.68683.55011.00381.00714.40423.7589
N62.38731.33942.68682.28473.55014.40423.75891.00381.0071
H72.04043.33632.57593.68841.00384.40421.75545.31094.4568
H82.01812.44153.15012.24861.00713.75891.75544.45684.2052
H93.33632.04043.68842.57594.40421.00385.31094.45681.7554
H102.44152.01812.24863.15013.75891.00714.45684.20521.7554

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.812 C1 C2 N6 111.597
C1 N5 H7 120.431 C1 N5 H8 117.956
C2 C1 O3 121.812 C2 C1 N5 111.597
C2 N6 H9 120.431 C2 N6 H10 117.956
O3 C1 N5 126.591 O4 C2 N6 126.591
H7 N5 H8 121.613 H9 N6 H10 121.613
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.196      
2 C 0.196      
3 O -0.345      
4 O -0.345      
5 N -0.189      
6 N -0.189      
7 H 0.161      
8 H 0.177      
9 H 0.161      
10 H 0.177      


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 -30.080 -11.818 0.000
y -11.818 -32.732 0.000
z 0.000 0.000 -35.031
Traceless
 xyz
x 3.801 -11.818 0.000
y -11.818 -0.176 0.000
z 0.000 0.000 -3.625
Polar
3z2-r2-7.250
x2-y22.652
xy-11.818
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 143.672
(<r2>)1/2 11.986