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 C3H7NO (Propanamide)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-246.136601
Energy at 298.15K-246.144968
HF Energy-245.634111
Nuclear repulsion energy176.998584
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 MP2/3-21G*
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 3704 3524 30.06      
2 A 3566 3392 37.29      
3 A 3188 3033 19.30      
4 A 3176 3021 18.70      
5 A 3125 2972 10.76      
6 A 3103 2952 15.69      
7 A 3085 2935 14.70      
8 A 1735 1651 192.48      
9 A 1698 1615 25.56      
10 A 1599 1521 5.19      
11 A 1598 1520 7.33      
12 A 1570 1493 8.79      
13 A 1500 1427 12.19      
14 A 1408 1339 43.91      
15 A 1353 1287 0.01      
16 A 1318 1254 159.37      
17 A 1161 1104 0.09      
18 A 1146 1090 3.13      
19 A 1076 1024 8.29      
20 A 1018 968 1.16      
21 A 862 820 14.46      
22 A 774 737 4.28      
23 A 648 617 40.74      
24 A 611 581 4.05      
25 A 522 496 40.98      
26 A 460 437 4.87      
27 A 392 373 261.10      
28 A 268 255 10.11      
29 A 191 182 0.01      
30 A 45 43 1.26      

Unscaled Zero Point Vibrational Energy (zpe) 22948.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 21830.8 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 MP2/3-21G*
ABC
0.31666 0.12637 0.09348

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.623 0.017 -0.001
H2 1.830 -1.536 0.000
N3 1.769 -0.527 -0.000
O4 0.467 1.387 0.000
C5 0.560 0.139 0.000
H6 -0.618 -1.439 -0.885
H7 -0.618 -1.438 0.886
C8 -0.667 -0.792 0.000
H9 -2.843 -0.631 -0.002
H10 -2.010 0.674 0.883
H11 -2.008 0.676 -0.882
C12 -1.972 0.032 -0.000

Atom - Atom Distances (Å)
  H1 H2 N3 O4 C5 H6 H7 C8 H9 H10 H11 C12
H11.74311.01262.55462.06623.66123.66163.38705.50394.76124.75954.5943
H21.74311.01033.22562.10202.60542.60592.60574.76044.51764.51694.1126
N31.01261.01032.31541.38022.70392.70432.44964.61304.06194.06063.7819
O42.55463.22562.31541.25203.15413.15372.45583.87632.72402.72192.7898
C52.06622.10201.38021.25202.15882.15881.53943.48892.76922.76782.5338
H63.66122.60542.70393.15412.15881.77031.09772.52663.08652.53052.1858
H73.66162.60592.70433.15372.15881.77031.09772.52762.52923.08642.1857
C83.38702.60572.44962.45581.53941.09771.09772.18242.17492.17491.5430
H95.50394.76044.61303.87633.48892.52662.52762.18241.78311.78311.0946
H104.76124.51764.06192.72402.76923.08652.52922.17491.78311.76561.0928
H114.75954.51694.06062.72192.76782.53053.08642.17491.78311.76561.0928
C124.59434.11263.78192.78982.53382.18582.18571.54301.09461.09281.0928

picture of Propanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N3 H2 119.008 H1 N3 C5 118.628
H2 N3 C5 122.363 N3 C5 O4 123.131
N3 C5 C8 113.965 O4 C5 C8 122.903
C5 C8 H6 108.746 C5 C8 H7 108.741
C5 C8 C12 110.582 H6 C8 H7 107.490
H6 C8 C12 110.602 H7 C8 C12 110.594
C8 C12 H9 110.523 C8 C12 H10 110.036
C8 C12 H11 110.035 H9 C12 H10 109.208
H9 C12 H11 109.213 H10 C12 H11 107.773
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability