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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: B3LYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-209.302818
Energy at 298.15K 
Nuclear repulsion energy121.757799
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at B3LYP/cc-pVTZ
ABC
0.36128 0.31056 0.17236

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.371 -0.297 -0.000
C2 0.079 0.152 0.000
N3 0.994 -0.861 -0.000
O4 0.410 1.321 0.000
H5 -2.009 0.580 -0.003
H6 -1.588 -0.905 -0.880
H7 -1.589 -0.900 0.884
H8 1.971 -0.623 0.000
H9 0.728 -1.828 -0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51752.43112.40641.08531.09141.09143.35752.5974
C21.51751.36541.21522.13132.16082.16082.04502.0836
N32.43111.36542.25913.33122.72832.73081.00511.0030
O42.40641.21522.25912.52993.11793.11612.49393.1652
H51.08532.13133.33122.52991.77551.77554.15813.6455
H61.09142.16082.72833.11791.77551.76393.67672.6437
H71.09142.16082.73083.11611.77551.76393.67872.6480
H83.35752.04501.00512.49394.15813.67673.67871.7307
H92.59742.08361.00303.16523.64552.64372.64801.7307

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.880 C1 C2 O4 123.041
C2 C1 H5 108.801 C2 C1 H6 110.782
C2 C1 H7 110.782 C2 N3 H8 118.453
C2 N3 H9 122.493 N3 C2 O4 122.080
H5 C1 H6 109.313 H5 C1 H7 109.313
H6 C1 H7 107.826 H8 N3 H9 119.054
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.309      
2 C 0.226      
3 N -0.233      
4 O -0.325      
5 H 0.122      
6 H 0.101      
7 H 0.101      
8 H 0.161      
9 H 0.156      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.223 -3.837 0.000 3.844
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.902 -2.413 -0.001
y -2.413 -25.869 -0.001
z -0.001 -0.001 -25.020
Traceless
 xyz
x 4.543 -2.413 -0.001
y -2.413 -2.908 -0.001
z -0.001 -0.001 -1.635
Polar
3z2-r2-3.269
x2-y24.967
xy-2.413
xz-0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.823 -0.085 -0.001
y -0.085 5.986 0.000
z -0.001 0.000 3.802


<r2> (average value of r2) Å2
<r2> 75.091
(<r2>)1/2 8.666