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: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-247.207311
Energy at 298.15K-247.212887
HF Energy-247.207311
Nuclear repulsion energy161.016969
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 BLYP/6-31G*
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 3586 3557 18.25      
2 A 3464 3436 19.98      
3 A 3178 3153 5.67      
4 A 3094 3069 8.74      
5 A 3071 3046 19.65      
6 A 1718 1704 170.92      
7 A 1643 1629 34.38      
8 A 1597 1584 83.75      
9 A 1416 1405 55.91      
10 A 1324 1313 29.73      
11 A 1256 1246 111.07      
12 A 1087 1078 7.09      
13 A 1014 1006 5.41      
14 A 991 983 23.44      
15 A 941 934 13.38      
16 A 791 785 8.02      
17 A 780 774 18.69      
18 A 605 600 21.06      
19 A 586 581 4.57      
20 A 458 454 9.83      
21 A 450 446 11.93      
22 A 271 269 85.82      
23 A 268 266 141.71      
24 A 123 122 8.65      

Unscaled Zero Point Vibrational Energy (zpe) 16856.1 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 16719.5 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 BLYP/6-31G*
ABC
0.34887 0.13785 0.09888

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.809 -0.654 -0.011
C2 -0.483 0.136 -0.002
N3 -1.625 -0.649 -0.016
O4 -0.524 1.367 -0.003
C5 2.000 -0.030 0.010
H6 0.748 -1.748 -0.036
H7 -2.525 -0.182 0.061
H8 -1.599 -1.659 0.100
H9 2.047 1.062 0.031
H10 2.944 -0.580 0.005

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.51422.43352.42091.34461.09683.36802.61132.11642.1365
C21.51421.38511.23262.48872.25112.06732.11532.69493.5015
N32.43351.38512.29763.67702.61511.01761.01664.05124.5692
O42.42091.23262.29762.88473.36572.53173.21322.58913.9777
C51.34462.48873.67702.88472.12654.52783.95111.09351.0932
H61.09682.25112.61513.36572.12653.63032.35253.09712.4874
H73.36802.06731.01762.53174.52783.63031.74414.73855.4841
H82.61132.11531.01663.21323.95112.35251.74414.54984.6699
H92.11642.69494.05122.58911.09353.09714.73854.54981.8722
H102.13653.50154.56923.97771.09322.48745.48414.66991.8722

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.064 C1 C2 O4 123.296
C1 C5 H9 120.126 C1 C5 H10 122.092
C2 C1 C5 120.933 C2 C1 H6 118.243
C2 N3 H7 117.910 C2 N3 H8 122.725
N3 C2 O4 122.632 C5 C1 H6 120.825
H7 N3 H8 118.051 H9 C5 H10 117.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.090      
2 C 0.526      
3 N -0.691      
4 O -0.482      
5 C -0.277      
6 H 0.098      
7 H 0.318      
8 H 0.309      
9 H 0.160      
10 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.435 -3.302 0.562 3.378
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.119 2.760 -1.151
y 2.760 -29.894 -0.596
z -1.151 -0.596 -31.187
Traceless
 xyz
x 8.422 2.760 -1.151
y 2.760 -3.241 -0.596
z -1.151 -0.596 -5.181
Polar
3z2-r2-10.361
x2-y27.775
xy2.760
xz-1.151
yz-0.596


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.159 0.771 0.004
y 0.771 6.657 0.020
z 0.004 0.020 2.500


<r2> (average value of r2) Å2
<r2> 117.327
(<r2>)1/2 10.832