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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-65.412819
Energy at 298.15K-65.419494
Nuclear repulsion energy123.992305
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/CEP-121G
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 3712 3617 0.00      
2 Ag 3549 3458 0.00      
3 Ag 1699 1655 0.00      
4 Ag 1602 1561 0.00      
5 Ag 1419 1383 0.00      
6 Ag 1101 1073 0.00      
7 Ag 753 733 0.00      
8 Ag 526 513 0.00      
9 Ag 387 377 0.00      
10 Au 681 663 513.73      
11 Au 645 629 161.20      
12 Au 409 398 17.90      
13 Au 98 96 19.62      
14 Bg 791 771 0.00      
15 Bg 675 657 0.00      
16 Bg 604 589 0.00      
17 Bu 3713 3618 105.70      
18 Bu 3548 3458 110.66      
19 Bu 1650 1608 628.37      
20 Bu 1626 1585 256.34      
21 Bu 1305 1272 173.32      
22 Bu 1092 1064 3.30      
23 Bu 559 545 24.31      
24 Bu 262 256 41.84      

Unscaled Zero Point Vibrational Energy (zpe) 16202.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 15789.5 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 B3LYP/CEP-121G
ABC
0.17995 0.12017 0.07205

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.777 0.000
C2 0.000 -0.777 0.000
O3 1.083 1.433 0.000
O4 -1.083 -1.433 0.000
N5 -1.260 1.305 0.000
N6 1.260 -1.305 0.000
H7 -1.389 2.307 0.000
H8 -2.052 0.673 0.000
H9 1.389 -2.307 0.000
H10 2.052 -0.673 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.55491.26602.46181.36652.43432.06622.05463.38302.5126
C21.55492.46181.26602.43431.36653.38302.51262.06622.0546
O31.26602.46183.59292.34682.74432.62153.22583.75332.3183
O42.46181.26603.59292.74432.34683.75332.31832.62153.2258
N51.36652.43432.34682.74433.62891.01041.01324.47983.8579
N62.43431.36652.74432.34683.62894.47983.85791.01041.0132
H72.06623.38302.62153.75331.01044.47981.76435.38614.5517
H82.05462.51263.22582.31831.01323.85791.76434.55174.3187
H93.38302.06623.75332.62154.47981.01045.38614.55171.7643
H102.51262.05462.31833.22583.85791.01324.55174.31871.7643

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.205 C1 C2 N6 112.719
C1 N5 H7 120.004 C1 N5 H8 118.649
C2 C1 O3 121.205 C2 C1 N5 112.719
C2 N6 H9 120.004 C2 N6 H10 118.649
O3 C1 N5 126.076 O4 C2 N6 126.076
H7 N5 H8 121.347 H9 N6 H10 121.347
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.036      
2 C -0.036      
3 O -0.194      
4 O -0.194      
5 N -0.466      
6 N -0.466      
7 H 0.335      
8 H 0.360      
9 H 0.335      
10 H 0.360      


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 -24.445 -11.228 -0.004
y -11.228 -40.551 0.002
z -0.004 0.002 -36.082
Traceless
 xyz
x 13.872 -11.228 -0.004
y -11.228 -10.288 0.002
z -0.004 0.002 -3.584
Polar
3z2-r2-7.168
x2-y216.107
xy-11.228
xz-0.004
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.805 -0.753 0.000
y -0.753 7.996 0.002
z 0.000 0.002 3.242


<r2> (average value of r2) Å2
<r2> 121.368
(<r2>)1/2 11.017