return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CHCONH2 (Acrylamide)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-245.888782
Energy at 298.15K-245.894434
Nuclear repulsion energy164.454365
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 HF/6-311G**
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 3971 3608 55.22      
2 A 3833 3482 67.58      
3 A 3394 3083 3.36      
4 A 3316 3013 14.18      
5 A 3295 2994 9.62      
6 A 1946 1768 384.58      
7 A 1839 1671 56.82      
8 A 1773 1611 151.83      
9 A 1561 1418 120.50      
10 A 1461 1327 65.94      
11 A 1393 1266 138.09      
12 A 1213 1102 6.68      
13 A 1137 1033 29.43      
14 A 1130 1027 6.66      
15 A 1102 1002 30.08      
16 A 909 826 42.70      
17 A 879 799 5.70      
18 A 670 609 17.82      
19 A 649 590 4.79      
20 A 510 463 9.71      
21 A 503 457 5.72      
22 A 302 274 7.91      
23 A 128 117 47.16      
24 A 55 50 207.45      

Unscaled Zero Point Vibrational Energy (zpe) 18484.2 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 16792.9 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 HF/6-311G**
ABC
0.36857 0.14233 0.10269

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.801 -0.643 -0.006
C2 0.478 0.133 -0.002
N3 1.599 -0.628 -0.009
O4 0.514 1.326 -0.001
C5 -1.963 -0.022 0.005
H6 -0.746 -1.719 -0.018
H7 2.479 -0.169 0.035
H8 1.570 -1.616 0.055
H9 -2.002 1.052 0.016
H10 -2.891 -0.564 0.003

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.49632.40062.36801.31711.07723.31412.56322.07792.0918
C21.49631.35481.19432.44582.21952.02332.06182.64583.4410
N32.40061.35482.23583.61322.58640.99280.99023.97464.4913
O42.36801.19432.23582.81943.29532.46973.12642.53093.8946
C51.31712.44583.61322.81942.08824.44373.87541.07501.0755
H61.07722.21952.58643.29532.08823.57782.31873.04292.4367
H73.31412.02330.99282.46974.44373.57781.70874.64465.3846
H82.56322.06180.99023.12643.87542.31871.70874.45864.5835
H92.07792.64583.97462.53091.07503.04294.64464.45861.8447
H102.09183.44104.49133.89461.07552.43675.38464.58351.8447

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.613 C1 C2 O4 122.918
C1 C5 H9 120.266 C1 C5 H10 121.586
C2 C1 C5 120.631 C2 C1 H6 118.278
C2 N3 H7 118.232 C2 N3 H8 122.330
N3 C2 O4 122.468 C5 C1 H6 121.091
H7 N3 H8 119.005 H9 C5 H10 118.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.296      
2 C 0.571      
3 N -0.531      
4 O -0.490      
5 C -0.089      
6 H 0.096      
7 H 0.243      
8 H 0.232      
9 H 0.145      
10 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.088 -3.717 0.182 3.722
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.701 -3.141 0.372
y -3.141 -30.643 -0.180
z 0.372 -0.180 -31.990
Traceless
 xyz
x 9.616 -3.141 0.372
y -3.141 -3.797 -0.180
z 0.372 -0.180 -5.818
Polar
3z2-r2-11.637
x2-y28.942
xy-3.141
xz0.372
yz-0.180


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.107 -0.859 -0.007
y -0.859 6.114 0.011
z -0.007 0.011 3.118


<r2> (average value of r2) Å2
<r2> 113.891
(<r2>)1/2 10.672