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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-209.228271
Energy at 298.15K 
HF Energy-209.228271
Nuclear repulsion energy121.981162
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 wB97X-D/TZVP
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 3781 3611 42.92      
2 A 3642 3478 40.88      
3 A 3167 3025 4.29      
4 A 3163 3021 15.92      
5 A 3078 2940 7.42      
6 A 1813 1732 402.48      
7 A 1638 1565 118.07      
8 A 1505 1437 13.01      
9 A 1478 1411 8.91      
10 A 1418 1354 79.47      
11 A 1364 1303 116.43      
12 A 1136 1085 0.55      
13 A 1065 1017 5.57      
14 A 999 954 10.67      
15 A 854 816 2.00      
16 A 673 642 12.86      
17 A 558 532 13.37      
18 A 531 507 8.97      
19 A 443 423 4.60      
20 A 260 248 221.70      
21 A 22i 21i 3.78      

Unscaled Zero Point Vibrational Energy (zpe) 16272.1 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 15539.8 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 wB97X-D/TZVP
ABC
0.36503 0.30997 0.17299

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.368 -0.299 -0.000
C2 0.080 0.155 0.002
N3 0.994 -0.860 -0.029
O4 0.407 1.319 0.004
H5 -2.009 0.575 -0.065
H6 -1.567 -0.960 -0.847
H7 -1.598 -0.848 0.916
H8 1.967 -0.621 0.061
H9 0.726 -1.819 0.096

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51742.42832.40221.08631.09201.09213.35112.5890
C21.51741.36671.20942.13182.16212.15732.04142.0791
N32.42831.36672.25733.32912.69092.75891.00561.0036
O42.40221.20942.25732.52893.13263.08972.49043.1558
H51.08632.13183.32912.52891.77861.77624.15413.6385
H61.09202.16212.69093.13261.77861.76683.66462.6238
H71.09212.15732.75893.08971.77621.76683.67282.6488
H83.35112.04141.00562.49044.15413.66463.67281.7254
H92.58902.07911.00363.15583.63852.62382.64881.7254

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.596 C1 C2 O4 123.114
C2 C1 H5 108.790 C2 C1 H6 110.860
C2 C1 H7 110.465 C2 N3 H8 117.955
C2 N3 H9 121.854 N3 C2 O4 122.274
H5 C1 H6 109.476 H5 C1 H7 109.246
H6 C1 H7 107.982 H8 N3 H9 118.355
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.412      
2 C 0.276      
3 N -0.432      
4 O -0.364      
5 H 0.156      
6 H 0.107      
7 H 0.156      
8 H 0.262      
9 H 0.252      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.146 -3.962 0.009 3.964
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.227 -2.342 0.007
y -2.342 -26.303 -0.008
z 0.007 -0.008 -24.997
Traceless
 xyz
x 5.423 -2.342 0.007
y -2.342 -3.691 -0.008
z 0.007 -0.008 -1.732
Polar
3z2-r2-3.463
x2-y26.076
xy-2.342
xz0.007
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.503 -0.219 -0.002
y -0.219 5.904 -0.001
z -0.002 -0.001 3.772


<r2> (average value of r2) Å2
<r2> 74.873
(<r2>)1/2 8.653