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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: PBEPBE/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 PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-209.059305
Energy at 298.15K-209.064865
HF Energy-209.059305
Nuclear repulsion energy121.108548
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 PBEPBE/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3648 3604 28.15      
2 A 3509 3467 21.90      
3 A 3067 3030 16.24      
4 A 3067 3029 3.45      
5 A 2986 2950 8.15      
6 A 1718 1697 318.56      
7 A 1560 1542 92.87      
8 A 1440 1422 9.10      
9 A 1419 1402 7.69      
10 A 1343 1327 68.35      
11 A 1303 1287 95.67      
12 A 1079 1066 0.13      
13 A 1011 999 2.94      
14 A 947 935 7.05      
15 A 823 813 2.95      
16 A 656 648 6.37      
17 A 525 519 11.37      
18 A 510 504 6.62      
19 A 417 412 4.65      
20 A 164 162 171.17      
21 A 33 33 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 15612.6 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 15423.7 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 PBEPBE/Def2TZVPP
ABC
0.35826 0.30726 0.17068

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.376 -0.294 -0.000
C2 0.081 0.156 0.002
N3 0.993 -0.873 -0.029
O4 0.418 1.329 0.004
H5 -2.016 0.590 -0.061
H6 -1.586 -0.955 -0.853
H7 -1.614 -0.850 0.918
H8 1.974 -0.639 0.063
H9 0.718 -1.838 0.098

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.52552.43902.41941.09281.09901.09923.36892.6032
C21.52551.37471.22042.14262.17782.17352.05392.0948
N32.43901.37472.27573.34562.70812.77351.01321.0115
O42.41941.22042.27572.54453.15673.11602.50943.1821
H51.09282.14263.34562.54451.78851.78684.17703.6593
H61.09902.17782.70813.15671.78851.77443.68962.6437
H71.09922.17352.77353.11601.78681.77443.69442.6613
H83.36892.05391.01322.50944.17703.68963.69441.7373
H92.60322.09481.01153.18213.65932.64372.66131.7373

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.386 C1 C2 O4 123.170
C2 C1 H5 108.709 C2 C1 H6 111.115
C2 C1 H7 110.759 C2 N3 H8 117.865
C2 N3 H9 122.034 N3 C2 O4 122.429
H5 C1 H6 109.374 H5 C1 H7 109.208
H6 C1 H7 107.648 H8 N3 H9 118.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.246      
2 C 0.196      
3 N -0.254      
4 O -0.320      
5 H 0.107      
6 H 0.058      
7 H 0.107      
8 H 0.186      
9 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.054 -3.771 0.001 3.771
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.641 -2.420 0.001
y -2.420 -26.214 -0.001
z 0.001 -0.001 -25.180
Traceless
 xyz
x 5.057 -2.420 0.001
y -2.420 -3.304 -0.001
z 0.001 -0.001 -1.753
Polar
3z2-r2-3.506
x2-y25.574
xy-2.420
xz0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.406 -0.218 0.000
y -0.218 6.413 0.000
z 0.000 0.000 4.100


<r2> (average value of r2) Å2
<r2> 75.783
(<r2>)1/2 8.705