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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-338.633723
Energy at 298.15K-338.640052
Nuclear repulsion energy233.558173
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 B3LYP/6-31G(2df,p)
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 3606 0.00      
2 Ag 3590 3464 0.00      
3 Ag 1819 1755 0.00      
4 Ag 1587 1532 0.00      
5 Ag 1410 1360 0.00      
6 Ag 1103 1064 0.00      
7 Ag 767 740 0.00      
8 Ag 532 513 0.00      
9 Ag 399 385 0.00      
10 Au 690 666 0.43      
11 Au 488 471 151.02      
12 Au 334 322 272.56      
13 Au 100 97 2.76      
14 Bg 841 812 0.00      
15 Bg 673 650 0.00      
16 Bg 348 336 0.00      
17 Bu 3737 3606 163.28      
18 Bu 3590 3464 111.37      
19 Bu 1794 1731 547.10      
20 Bu 1586 1531 329.79      
21 Bu 1309 1263 123.33      
22 Bu 1094 1056 6.79      
23 Bu 574 554 23.16      
24 Bu 279 269 39.45      

Unscaled Zero Point Vibrational Energy (zpe) 16189.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15622.6 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 B3LYP/6-31G(2df,p)
ABC
0.18822 0.12462 0.07498

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.774 0.000
C2 0.000 -0.774 0.000
O3 1.034 1.418 0.000
O4 -1.034 -1.418 0.000
N5 -1.253 1.263 0.000
N6 1.253 -1.263 0.000
H7 -1.414 2.255 0.000
H8 -2.017 0.604 0.000
H9 1.414 -2.255 0.000
H10 2.017 -0.604 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54711.21892.42371.34562.39142.04832.02393.34282.4425
C21.54712.42371.21892.39141.34563.34282.44252.04832.0239
O31.21892.42373.51102.29302.69042.58733.15783.69352.2487
O42.42371.21893.51102.69042.29303.69352.24872.58733.1578
N51.34562.39142.29302.69043.55881.00541.00834.41533.7658
N62.39141.34562.69042.29303.55884.41533.76581.00541.0083
H72.04833.34282.58733.69351.00544.41531.75785.32414.4663
H82.02392.44253.15782.24871.00833.76581.75784.46634.2107
H93.34282.04833.69352.58734.41531.00545.32414.46631.7578
H102.44252.02392.24873.15783.76581.00834.46634.21071.7578

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.947 C1 C2 N6 111.332
C1 N5 H7 120.518 C1 N5 H8 117.875
C2 C1 O3 121.947 C2 C1 N5 111.332
C2 N6 H9 120.518 C2 N6 H10 117.875
O3 C1 N5 126.721 O4 C2 N6 126.721
H7 N5 H8 121.607 H9 N6 H10 121.607
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.336      
2 C 0.336      
3 O -0.375      
4 O -0.375      
5 N -0.515      
6 N -0.515      
7 H 0.270      
8 H 0.284      
9 H 0.270      
10 H 0.284      


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 -29.705 -11.286 0.000
y -11.286 -32.170 0.000
z 0.000 0.000 -34.392
Traceless
 xyz
x 3.576 -11.286 0.000
y -11.286 -0.121 0.000
z 0.000 0.000 -3.455
Polar
3z2-r2-6.910
x2-y22.465
xy-11.286
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.797 -0.471 0.000
y -0.471 6.666 0.000
z 0.000 0.000 3.252


<r2> (average value of r2) Å2
<r2> 143.896
(<r2>)1/2 11.996