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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-208.070486
Energy at 298.15K-208.076298
HF Energy-208.070486
Nuclear repulsion energy123.094889
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 HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3968 3597 54.25      
2 A 3830 3472 52.79      
3 A 3287 2980 11.54      
4 A 3236 2933 20.35      
5 A 3178 2881 9.09      
6 A 1937 1755 476.19      
7 A 1771 1605 114.51      
8 A 1606 1456 8.61      
9 A 1588 1439 10.08      
10 A 1535 1391 73.59      
11 A 1443 1308 150.19      
12 A 1225 1110 0.98      
13 A 1158 1049 6.24      
14 A 1068 968 18.20      
15 A 905 820 1.04      
16 A 699 633 14.46      
17 A 601 545 20.37      
18 A 558 506 3.46      
19 A 453 411 4.32      
20 A 151 137 229.85      
21 A 46 42 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 17120.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 15518.2 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 HF/Def2TZVPP
ABC
0.37228 0.31408 0.17588

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.359 -0.310 0.000
C2 0.078 0.153 -0.001
N3 1.004 -0.835 -0.031
O4 0.384 1.305 0.005
H5 -2.007 0.549 -0.054
H6 -1.547 -0.963 -0.844
H7 -1.570 -0.864 0.907
H8 1.957 -0.583 0.069
H9 0.754 -1.782 0.104

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50992.42152.37631.07751.08341.08373.32862.5767
C21.50991.35511.19162.12282.14392.13912.01972.0519
N32.42151.35512.22833.31462.68122.74020.99100.9882
O42.37631.19162.22832.50843.09733.05562.45793.1098
H51.07752.12283.31462.50841.76691.76414.12473.6163
H61.08342.14392.68123.09731.76691.75393.64162.6196
H71.08372.13912.74023.05561.76411.75393.63662.6240
H83.32862.01970.99102.45794.12473.64163.63661.6995
H92.57672.05190.98823.10983.61632.61962.62401.6995

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 115.282 C1 C2 O4 122.760
C2 C1 H5 109.121 C2 C1 H6 110.452
C2 C1 H7 110.047 C2 N3 H8 117.997
C2 N3 H9 121.450 N3 C2 O4 121.950
H5 C1 H6 109.707 H5 C1 H7 109.430
H6 C1 H7 108.067 H8 N3 H9 118.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.193      
2 C 0.464      
3 N -0.425      
4 O -0.487      
5 H 0.104      
6 H 0.058      
7 H 0.078      
8 H 0.212      
9 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.363 -4.060 0.181 4.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.516 -2.298 0.267
y -2.298 -26.457 -0.248
z 0.267 -0.248 -24.938
Traceless
 xyz
x 5.182 -2.298 0.267
y -2.298 -3.730 -0.248
z 0.267 -0.248 -1.451
Polar
3z2-r2-2.903
x2-y25.941
xy-2.298
xz0.267
yz-0.248


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.171 -0.042 -0.009
y -0.042 5.522 -0.001
z -0.009 -0.001 3.764


<r2> (average value of r2) Å2
<r2> 73.950
(<r2>)1/2 8.599