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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-209.076481
Energy at 298.15K 
HF Energy-209.076481
Nuclear repulsion energy122.177188
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 HSEh1PBE/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 3770 3624 38.39      
2 A 3629 3488 34.62      
3 A 3161 3038 7.61      
4 A 3139 3017 11.50      
5 A 3064 2945 6.41      
6 A 1808 1738 349.69      
7 A 1621 1558 113.18      
8 A 1487 1429 12.72      
9 A 1464 1407 8.71      
10 A 1398 1344 105.93      
11 A 1352 1300 65.42      
12 A 1124 1080 0.31      
13 A 1051 1010 4.84      
14 A 985 947 7.35      
15 A 858 824 2.15      
16 A 675 648 8.89      
17 A 549 528 13.67      
18 A 524 503 5.69      
19 A 429 412 4.57      
20 A 173 166 182.87      
21 A 23i 22i 4.64      

Unscaled Zero Point Vibrational Energy (zpe) 16118.3 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 15491.3 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 HSEh1PBE/cc-pVTZ
ABC
0.36487 0.31235 0.17369

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.359 -0.328 -0.001
C2 -0.076 0.141 -0.007
N3 -1.020 -0.829 -0.018
O4 -0.371 1.318 0.003
H5 1.779 -0.147 0.990
H6 1.477 -1.385 -0.244
H7 1.924 0.273 -0.710
H8 -1.986 -0.560 0.055
H9 -0.779 -1.798 0.057

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.50952.43162.38841.09121.09021.08843.35332.5950
C21.50951.35441.21362.12512.18962.12362.03592.0636
N32.43161.35442.24363.05252.56823.21911.00501.0007
O42.38841.21362.24362.78253.28352.62072.47753.1429
H51.09122.12513.05252.78251.77381.75763.90103.1844
H61.09022.18962.56823.28351.77381.77903.57212.3133
H71.08842.12363.21912.62071.75761.77904.07003.4904
H83.35332.03591.00502.47753.90103.57214.07001.7285
H92.59502.06361.00073.14293.18442.31333.49041.7285

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 116.107 C1 C2 O4 122.216
C2 C1 H5 108.526 C2 C1 H6 113.778
C2 C1 H7 108.570 C2 N3 H8 118.526
C2 N3 H9 121.648 N3 C2 O4 121.677
H5 C1 H6 108.807 H5 C1 H7 107.488
H6 C1 H7 109.485 H8 N3 H9 119.029
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.298      
2 C 0.211      
3 N -0.221      
4 O -0.335      
5 H 0.121      
6 H 0.080      
7 H 0.123      
8 H 0.164      
9 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.087 -3.822 0.094 3.825
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.340 2.350 -0.095
y 2.350 -25.863 -0.104
z -0.095 -0.104 -24.803
Traceless
 xyz
x 4.994 2.350 -0.095
y 2.350 -3.291 -0.104
z -0.095 -0.104 -1.702
Polar
3z2-r2-3.404
x2-y25.523
xy2.350
xz-0.095
yz-0.104


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.818 0.165 0.001
y 0.165 5.879 -0.002
z 0.001 -0.002 3.773


<r2> (average value of r2) Å2
<r2> 74.518
(<r2>)1/2 8.632