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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: B97D3/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-209.179657
Energy at 298.15K 
HF Energy-209.179657
Nuclear repulsion energy121.251171
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/aug-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 3614 26.66      
2 A 3530 3476 19.63      
3 A 3077 3030 12.03      
4 A 3072 3025 14.61      
5 A 2997 2951 11.44      
6 A 1711 1685 356.53      
7 A 1587 1563 77.11      
8 A 1461 1438 7.36      
9 A 1444 1422 6.83      
10 A 1364 1344 38.41      
11 A 1304 1284 143.85      
12 A 1092 1076 0.25      
13 A 1028 1013 2.01      
14 A 959 945 11.73      
15 A 818 805 3.06      
16 A 656 646 6.18      
17 A 532 524 11.33      
18 A 513 505 5.36      
19 A 425 419 4.58      
20 A 154 152 173.21      
21 A 18i 18i 3.63      

Unscaled Zero Point Vibrational Energy (zpe) 15688.7 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 15448.7 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 B97D3/aug-cc-pVTZ
ABC
0.35940 0.30714 0.17087

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.365 -0.343 -0.000
C2 0.075 0.146 -0.002
N3 1.034 -0.832 -0.001
O4 0.361 1.336 0.000
H5 -1.884 0.105 -0.851
H6 -1.464 -1.431 -0.051
H7 -1.852 0.018 0.910
H8 2.003 -0.556 0.006
H9 0.807 -1.812 0.001

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.52122.44812.40791.09301.09351.09363.37502.6219
C21.52121.36991.22322.13622.20442.13612.05182.0906
N32.44811.36992.27003.18072.56893.14381.00831.0056
O42.40791.22322.27002.69823.31482.73192.50473.1791
H51.09302.13623.18072.69821.78261.76324.03553.4124
H61.09352.20442.56893.31481.78261.78133.57642.3031
H71.09362.13613.14382.73191.76321.78134.00153.3537
H83.37502.05181.00832.50474.03553.57644.00151.7349
H92.62192.09061.00563.17913.41242.30313.35371.7349

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 115.628 C1 C2 O4 122.288
C2 C1 H5 108.488 C2 C1 H6 113.937
C2 C1 H7 108.452 C2 N3 H8 118.466
C2 N3 H9 122.560 N3 C2 O4 122.083
H5 C1 H6 109.230 H5 C1 H7 107.475
H6 C1 H7 109.064 H8 N3 H9 118.971
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.294      
2 C 0.586      
3 N -0.096      
4 O -0.683      
5 H 0.132      
6 H 0.154      
7 H 0.129      
8 H 0.052      
9 H 0.020      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.118 -3.799 0.017 3.800
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.729 -2.338 0.022
y -2.338 -26.511 -0.020
z 0.022 -0.020 -25.170
Traceless
 xyz
x 5.111 -2.338 0.022
y -2.338 -3.561 -0.020
z 0.022 -0.020 -1.550
Polar
3z2-r2-3.100
x2-y25.782
xy-2.338
xz0.022
yz-0.020


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.951 -0.235 -0.004
y -0.235 6.941 -0.001
z -0.004 -0.001 4.666


<r2> (average value of r2) Å2
<r2> 75.765
(<r2>)1/2 8.704