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 C4H7NO (Methacrylamide)

using model chemistry: HF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G**
 hartrees
Energy at 0K-284.873741
Energy at 298.15K-284.882033
Nuclear repulsion energy230.179246
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/6-31G**
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 3982 3594 51.27      
2 A 3842 3468 53.01      
3 A 3403 3071 12.82      
4 A 3322 2998 6.95      
5 A 3285 2965 15.69      
6 A 3259 2942 24.76      
7 A 3194 2883 25.23      
8 A 1971 1779 399.63      
9 A 1864 1682 44.77      
10 A 1775 1602 138.39      
11 A 1622 1464 17.31      
12 A 1604 1448 6.53      
13 A 1577 1423 12.82      
14 A 1555 1403 14.84      
15 A 1508 1361 97.77      
16 A 1340 1209 66.39      
17 A 1206 1089 5.12      
18 A 1172 1058 0.55      
19 A 1114 1006 7.92      
20 A 1091 985 39.37      
21 A 1025 925 3.04      
22 A 907 819 34.20      
23 A 806 728 5.10      
24 A 750 677 20.37      
25 A 627 566 19.29      
26 A 601 542 23.21      
27 A 551 498 5.36      
28 A 411 371 67.22      
29 A 386 348 169.72      
30 A 352 317 4.43      
31 A 284 256 15.51      
32 A 184 166 0.19      
33 A 77 70 3.87      

Unscaled Zero Point Vibrational Energy (zpe) 25323.2 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 22856.7 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 HF/6-31G**
ABC
0.17760 0.11240 0.07364

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.677 0.716 0.275
H2 -2.617 0.399 0.333
H3 -1.425 1.516 0.804
C4 1.677 -0.892 0.275
H5 1.494 -1.333 1.250
H6 1.566 -1.683 -0.457
H7 2.694 -0.520 0.248
C8 1.046 1.457 -0.282
H9 0.326 2.215 -0.533
H10 2.080 1.753 -0.297
C11 -0.747 -0.221 -0.046
O12 -1.050 -1.337 -0.363
C13 0.694 0.212 -0.009

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 H10 C11 O12 C13
N10.99430.99133.71903.89934.09974.54162.87562.62843.93831.35822.23982.4402
H20.99431.70034.48434.55494.73935.39043.86163.56474.92832.00622.44053.3341
H30.99131.70033.96204.10324.55734.62752.69912.31103.68072.04893.10532.6172
C43.71904.48433.96201.08591.08321.08322.49543.48312.73612.53562.83531.5051
H53.89934.55494.10321.08591.74431.76193.21464.13943.50152.81833.01242.1477
H64.09974.73934.55731.08321.74431.76653.18754.09113.47782.76752.64062.1337
H74.54165.39044.62751.08321.76191.76652.62773.70082.41673.46633.88012.1446
C82.87563.86162.69912.49543.21463.18752.62771.07501.07572.46663.49361.3221
H92.62843.56472.31103.48314.13944.09113.70081.07501.82892.70553.81302.1028
H103.93834.92833.68072.73613.50153.47782.41671.07571.82893.45674.39872.0921
C111.35822.00622.04892.53562.81832.76753.46632.46662.70553.45671.19951.5054
O122.23982.44053.10532.83533.01242.64063.88013.49363.81304.39871.19952.3597
C132.44023.33412.61721.50512.14772.13372.14461.32212.10282.09211.50542.3597

picture of Methacrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 H11 H12 122.138 C1 H11 H13 116.800
C2 C1 C3 117.816 C2 C1 H11 116.177
C3 C1 H11 120.591 C4 H13 H8 123.798
C4 H13 H11 114.762 O5 C4 N6 107.064
O5 C4 H7 108.636 O5 C4 H13 110.942
N6 C4 H7 109.261 N6 C4 H13 109.987
H7 C4 H13 110.857 H8 H13 H11 121.332
H9 H8 H10 116.510 H9 H8 H13 122.287
H10 H8 H13 121.170 H12 H11 H13 121.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.757 -1.026    
2 H 0.317 0.432    
3 H 0.306 0.397    
4 C -0.334 -0.134    
5 H 0.130 0.043    
6 H 0.161 0.066    
7 H 0.116 0.058    
8 C -0.297 -0.434    
9 H 0.139 0.171    
10 H 0.140 0.185    
11 C 0.733 0.878    
12 O -0.594 -0.631    
13 C -0.061 -0.004    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.515 3.246 1.660 3.682
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.514 -4.091 -2.718
y -4.091 -37.549 -0.298
z -2.718 -0.298 -37.022
Traceless
 xyz
x 5.771 -4.091 -2.718
y -4.091 -3.281 -0.298
z -2.718 -0.298 -2.490
Polar
3z2-r2-4.980
x2-y26.035
xy-4.091
xz-2.718
yz-0.298


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.450 0.547 -0.156
y 0.547 9.081 -0.248
z -0.156 -0.248 4.325


<r2> (average value of r2) Å2
<r2> 162.278
(<r2>)1/2 12.739