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: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-246.531473
Energy at 298.15K-246.537192
HF Energy-245.816860
Nuclear repulsion energy162.386105
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 MP2/6-31G*
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 3754 3540 43.21      
2 A 3619 3413 59.65      
3 A 3324 3134 2.28      
4 A 3230 3046 8.95      
5 A 3216 3033 4.60      
6 A 1816 1713 213.81      
7 A 1721 1623 22.82      
8 A 1665 1570 111.82      
9 A 1485 1400 85.59      
10 A 1392 1312 62.44      
11 A 1323 1248 69.55      
12 A 1141 1076 4.00      
13 A 1068 1007 3.60      
14 A 1020 962 36.34      
15 A 967 912 16.29      
16 A 842 794 6.89      
17 A 795 750 27.68      
18 A 628 593 28.40      
19 A 606 572 9.47      
20 A 477 450 8.73      
21 A 467 441 29.44      
22 A 310 292 267.72      
23 A 286 270 6.65      
24 A 97 91 6.48      

Unscaled Zero Point Vibrational Energy (zpe) 17624.1 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 16619.6 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 MP2/6-31G*
ABC
0.35401 0.14078 0.10084

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.794 -0.659 -0.010
C2 -0.475 0.128 0.000
N3 -1.611 -0.636 -0.020
O4 -0.507 1.358 -0.003
C5 1.974 -0.029 0.009
H6 0.736 -1.746 -0.035
H7 -2.498 -0.159 0.064
H8 -1.592 -1.637 0.109
H9 2.006 1.056 0.030
H10 2.914 -0.569 0.002

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.49372.40542.40061.33771.08853.33072.58152.10012.1217
C21.49371.36981.23022.45372.23192.04422.09192.64813.4599
N32.40541.36982.28003.63612.59621.01081.00873.99314.5255
O42.40061.23022.28002.84203.34392.50383.18752.53053.9264
C51.33772.45373.63612.84202.11724.47383.91301.08531.0845
H61.08852.23192.59623.34392.11723.60382.33523.07672.4758
H73.33072.04421.01082.50384.47383.60381.73414.66425.4277
H82.58152.09191.00873.18753.91302.33521.73414.49434.6321
H92.10012.64813.99312.53051.08533.07674.66424.49431.8621
H102.12173.45994.52553.92641.08452.47585.42774.63211.8621

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.212 C1 C2 O4 123.313
C1 C5 H9 119.802 C1 C5 H10 121.973
C2 C1 C5 120.035 C2 C1 H6 118.768
C2 N3 H7 117.549 C2 N3 H8 122.437
N3 C2 O4 122.456 C5 C1 H6 121.198
H7 N3 H8 118.341 H9 C5 H10 118.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability