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: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-246.231455
Energy at 298.15K-246.237192
HF Energy-245.748619
Nuclear repulsion energy158.917797
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 MP2/LANL2DZ
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 3754 3616 37.49      
2 A 3599 3466 65.08      
3 A 3274 3153 10.53      
4 A 3172 3055 17.64      
5 A 3149 3033 10.33      
6 A 1701 1638 203.60      
7 A 1662 1600 3.32      
8 A 1633 1573 119.63      
9 A 1477 1422 68.41      
10 A 1355 1305 57.08      
11 A 1310 1262 142.05      
12 A 1109 1068 5.08      
13 A 1063 1023 9.83      
14 A 1001 964 51.70      
15 A 892 859 24.53      
16 A 804 774 3.16      
17 A 778 749 36.17      
18 A 609 587 76.56      
19 A 599 577 6.70      
20 A 484 466 205.54      
21 A 458 441 4.50      
22 A 418 402 107.52      
23 A 270 260 7.88      
24 A 89 86 4.06      

Unscaled Zero Point Vibrational Energy (zpe) 17329.2 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 16689.7 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 MP2/LANL2DZ
ABC
0.33692 0.13454 0.09615

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.815 -0.659 0.000
C2 0.485 0.124 0.000
N3 1.640 -0.663 -0.000
O4 0.539 1.397 0.000
C5 -2.027 -0.028 -0.000
H6 -0.753 -1.754 0.000
H7 2.545 -0.201 -0.000
H8 1.605 -1.676 0.001
H9 -2.076 1.064 -0.000
H10 -2.964 -0.590 -0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.51752.45472.46161.36631.09683.39102.62492.13542.1501
C21.51751.39781.27372.51622.24962.08582.12062.72783.5218
N32.45471.39782.33563.72112.62991.01611.01404.09754.6043
O42.46161.27372.33562.93473.40552.56503.25292.63594.0269
C51.36632.51623.72112.93472.14514.57513.98811.09331.0926
H61.09682.24962.62993.40552.14513.64532.35913.11332.4987
H73.39102.08581.01612.56504.57513.64531.74924.79115.5226
H82.62492.12061.01403.25293.98812.35911.74924.58904.6962
H92.13542.72784.09752.63591.09333.11334.79114.58901.8773
H102.15013.52184.60434.02691.09262.49875.52264.69621.8773

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.643 C1 C2 O4 123.511
C1 C5 H9 120.084 C1 C5 H10 121.557
C2 C1 C5 121.415 C2 C1 H6 117.847
C2 N3 H7 118.705 C2 N3 H8 122.299
N3 C2 O4 121.846 C5 C1 H6 120.738
H7 N3 H8 118.995 H9 C5 H10 118.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability