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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: B3LYP/CEP-31G*

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-31G*
 hartrees
Energy at 0K-65.501709
Energy at 298.15K-65.507672
Nuclear repulsion energy124.654444
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-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3721 3593 0.00      
2 Ag 3580 3457 0.00      
3 Ag 1795 1734 0.00      
4 Ag 1592 1538 0.00      
5 Ag 1402 1354 0.00      
6 Ag 1081 1044 0.00      
7 Ag 754 728 0.00      
8 Ag 516 498 0.00      
9 Ag 390 376 0.00      
10 Au 660 637 0.04      
11 Au 451 435 86.95      
12 Au 286 276 463.16      
13 Au 75 72 0.20      
14 Bg 808 780 0.00      
15 Bg 643 621 0.00      
16 Bg 268 259 0.00      
17 Bu 3722 3594 157.62      
18 Bu 3580 3457 124.89      
19 Bu 1764 1704 697.37      
20 Bu 1588 1534 299.63      
21 Bu 1286 1242 162.06      
22 Bu 1068 1031 9.62      
23 Bu 557 538 21.60      
24 Bu 267 258 38.62      

Unscaled Zero Point Vibrational Energy (zpe) 15926.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 15380.4 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-31G*
ABC
0.18353 0.12039 0.07270

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.784 0.000
C2 0.000 -0.784 0.000
O3 1.050 1.439 0.000
O4 -1.050 -1.439 0.000
N5 -1.268 1.290 0.000
N6 1.268 -1.290 0.000
H7 -1.408 2.297 0.000
H8 -2.055 0.645 0.000
H9 1.408 -2.297 0.000
H10 2.055 -0.645 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.56791.23782.45851.36502.43092.06652.05963.38722.5027
C21.56792.45851.23782.43091.36503.38722.50272.06652.0596
O31.23782.45853.56302.32262.73802.60323.20513.75302.3132
O42.45851.23783.56302.73802.32263.75302.31322.60323.2051
N51.36502.43092.32262.73803.61761.01631.01824.47493.8449
N62.43091.36502.73802.32263.61764.47493.84491.01631.0182
H72.06653.38722.60323.75301.01634.47491.77465.38784.5433
H82.05962.50273.20512.31321.01823.84491.77464.54334.3073
H93.38722.06653.75302.60324.47491.01635.38784.54331.7746
H102.50272.05962.31323.20513.84491.01824.54334.30731.7746

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.953 C1 C2 N6 111.776
C1 N5 H7 119.692 C1 N5 H8 118.869
C2 C1 O3 121.953 C2 C1 N5 111.776
C2 N6 H9 119.692 C2 N6 H10 118.869
O3 C1 N5 126.271 O4 C2 N6 126.271
H7 N5 H8 121.439 H9 N6 H10 121.439
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.219      
2 C -0.219      
3 O -0.141      
4 O -0.141      
5 N -0.342      
6 N -0.342      
7 H 0.336      
8 H 0.366      
9 H 0.336      
10 H 0.366      


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 -24.003 -10.342 -0.002
y -10.342 -38.294 0.004
z -0.002 0.004 -35.516
Traceless
 xyz
x 12.902 -10.342 -0.002
y -10.342 -8.535 0.004
z -0.002 0.004 -4.367
Polar
3z2-r2-8.735
x2-y214.291
xy-10.342
xz-0.002
yz0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.906 -0.642 -0.000
y -0.642 7.550 0.003
z -0.000 0.003 3.347


<r2> (average value of r2) Å2
<r2> 119.881
(<r2>)1/2 10.949