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All results from a given calculation for C4H6 (1-Methylcyclopropene)

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-155.429470
Energy at 298.15K-155.434772
HF Energy-154.867062
Nuclear repulsion energy108.172061
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 MP3=FULL/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 3349 3142 0.00      
2 A 3192 2995 14.78      
3 A 3176 2980 48.97      
4 A 3169 2973 18.91      
5 A 3113 2921 62.09      
6 A 3101 2909 19.16      
7 A 1925 1807 8.99      
8 A 1589 1491 7.27      
9 A 1547 1451 8.29      
10 A 1539 1444 7.95      
11 A 1467 1376 0.13      
12 A 1256 1179 1.93      
13 A 1159 1088 1.06      
14 A 1135 1065 14.00      
15 A 1120 1051 25.80      
16 A 1081 1014 0.51      
17 A 1023 960 2.06      
18 A 1017 954 4.75      
19 A 977 917 13.93      
20 A 709 665 31.99      
21 A 707 663 0.28      
22 A 334 313 1.45      
23 A 295 276 11.50      
24 A 151 142 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 19065.2 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 17888.8 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 MP3=FULL/6-31G*
ABC
0.68994 0.21174 0.17279

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.397 1.781 0.000
C2 -0.917 0.814 0.000
C3 0.155 0.085 -0.001
H4 -1.480 -1.176 0.912
H5 -1.481 -1.176 -0.911
C6 -1.143 -0.675 0.000
H7 1.949 -0.630 0.884
H8 2.125 0.904 -0.001
H9 1.950 -0.633 -0.882
C10 1.627 -0.069 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 H5 C6 H7 H8 H9 C10
H11.07912.29813.09503.09492.46884.21793.62924.21983.5452
C21.07911.29622.25982.25991.50593.32943.04363.33092.6937
C32.29811.29622.25742.25731.50382.12492.13352.12511.4807
H43.09502.25982.25741.82281.09353.47274.26093.90883.4222
H53.09492.25992.25731.82281.09353.90994.26113.47433.4230
C62.46881.50591.50381.09351.09353.21613.62913.21652.8354
H74.21793.32942.12493.47273.90993.21611.77981.76521.0950
H83.62923.04362.13354.26094.26113.62911.77981.77991.0932
H94.21983.33092.12513.90883.47433.21651.76521.77991.0950
C103.54522.69371.48073.42223.42302.83541.09501.09321.0950

picture of 1-Methylcyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 150.576 H1 C2 C6 145.018
C2 C3 C6 64.572 C2 C3 C10 151.804
C2 C6 C3 51.023 C2 C6 H4 119.935
C2 C6 H5 119.947 C3 C2 C6 64.406
C3 C6 H4 119.890 C3 C6 H5 119.878
C3 C10 H7 110.270 C3 C10 H8 111.070
C3 C10 H9 110.289 H4 C6 H5 112.915
C6 C3 C10 143.624 H7 C10 H8 108.852
H7 C10 H9 107.413 H8 C10 H9 108.855
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability