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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-209.174625
Energy at 298.15K 
HF Energy-209.174625
Nuclear repulsion energy121.256913
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 B97D3/cc-pVTZ
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 3670 3619 23.07      
2 A 3530 3480 17.49      
3 A 3089 3046 11.19      
4 A 3061 3018 18.39      
5 A 2994 2952 11.16      
6 A 1729 1705 310.38      
7 A 1586 1563 79.91      
8 A 1462 1442 6.77      
9 A 1443 1423 7.84      
10 A 1362 1343 46.36      
11 A 1305 1287 125.96      
12 A 1096 1080 0.16      
13 A 1027 1013 2.90      
14 A 957 943 10.29      
15 A 816 805 3.42      
16 A 653 644 6.83      
17 A 536 528 12.39      
18 A 505 498 5.13      
19 A 421 415 4.24      
20 A 139 137 169.55      
21 A 36i 36i 7.09      

Unscaled Zero Point Vibrational Energy (zpe) 15671.7 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 15452.3 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 B97D3/cc-pVTZ
ABC
0.35857 0.30773 0.17091

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.368 -0.330 -0.001
C2 0.078 0.149 -0.008
N3 1.023 -0.844 -0.017
O4 0.377 1.333 0.003
H5 -1.950 0.312 -0.663
H6 -1.485 -1.374 -0.307
H7 -1.769 -0.215 1.012
H8 1.992 -0.579 0.058
H9 0.780 -1.818 0.049

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.52262.44482.41051.09151.09401.09503.36962.6128
C21.52261.37071.22172.13762.20242.14062.04942.0891
N32.44481.37072.27123.25452.57933.04101.00821.0058
O42.41051.22172.27122.62733.30032.83222.50393.1772
H51.09152.13763.25452.62731.78491.76534.10593.5352
H61.09402.20242.57933.30031.78491.77803.58582.3353
H71.09502.14063.04102.83221.76531.77803.89763.1610
H83.36962.04941.00822.50394.10593.58583.89761.7336
H92.61282.08911.00583.17723.53522.33533.16101.7336

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.253 C1 C2 O4 123.233
C2 C1 H5 108.793 C2 C1 H6 111.046
C2 C1 H7 110.663 C2 N3 H8 117.870
C2 N3 H9 121.955 N3 C2 O4 122.500
H5 C1 H6 109.429 H5 C1 H7 109.252
H6 C1 H7 107.632 H8 N3 H9 118.150
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.268      
2 C 0.199      
3 N -0.195      
4 O -0.321      
5 H 0.110      
6 H 0.069      
7 H 0.107      
8 H 0.153      
9 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.067 -3.714 0.222 3.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.596 -2.378 0.272
y -2.378 -25.821 -0.312
z 0.272 -0.312 -24.808
Traceless
 xyz
x 4.718 -2.378 0.272
y -2.378 -3.119 -0.312
z 0.272 -0.312 -1.599
Polar
3z2-r2-3.198
x2-y25.225
xy-2.378
xz0.272
yz-0.312


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.176 -0.188 0.006
y -0.188 6.156 -0.004
z 0.006 -0.004 3.868


<r2> (average value of r2) Å2
<r2> 75.492
(<r2>)1/2 8.689