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

using model chemistry: CCD/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCD/daug-cc-pVDZ
 hartrees
Energy at 0K-155.486501
Energy at 298.15K 
HF Energy-154.883389
Nuclear repulsion energy107.136601
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 CCD/daug-cc-pVDZ
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' 3299 3299 0.13      
2 A' 3133 3133 17.36      
3 A' 3065 3065 70.02      
4 A' 3041 3041 25.00      
5 A' 1862 1862 12.60      
6 A' 1525 1525 4.64      
7 A' 1483 1483 7.62      
8 A' 1404 1404 0.13      
9 A' 1206 1206 3.47      
10 A' 1088 1088 5.45      
11 A' 1069 1069 24.82      
12 A' 987 987 6.34      
13 A' 941 941 12.42      
14 A' 677 677 0.68      
15 A' 321 321 1.42      
16 A" 3137 3137 43.76      
17 A" 3114 3114 15.78      
18 A" 1477 1477 6.87      
19 A" 1108 1108 1.99      
20 A" 1044 1044 0.02      
21 A" 990 990 1.57      
22 A" 695 695 33.14      
23 A" 276 276 12.20      
24 A" 162 162 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 18552.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18552.1 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 CCD/daug-cc-pVDZ
ABC
0.67554 0.20788 0.16954

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.179 0.000
C2 -0.065 -1.343 0.000
C3 1.161 -0.431 0.000
C4 -0.830 1.418 0.000
H5 -0.344 -1.874 0.922
H6 -0.344 -1.874 -0.922
H7 2.246 -0.395 0.000
H8 -0.196 2.319 0.000
H9 -1.481 1.440 -0.890
H10 -1.481 1.440 0.890

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.52321.31151.49152.27662.27662.31852.14872.13932.1393
C21.52321.52752.86521.10001.10002.49793.66393.24713.2471
C31.31151.52752.71722.27962.27961.08613.06623.35783.3578
C41.49152.86522.71723.45343.45343.57071.10141.10301.1030
H52.27661.10002.27963.45341.84363.12214.29553.94453.5040
H62.27661.10002.27963.45341.84363.12214.29553.50403.9445
H72.31852.49791.08613.57073.12213.12213.65054.24904.2490
H82.14873.66393.06621.10144.29554.29553.65051.79361.7936
H92.13933.24713.35781.10303.94453.50404.24901.79361.7794
H102.13933.24713.35781.10303.50403.94454.24901.79361.7794

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 50.922 H1 C2 C6 119.556
C2 C3 C6 24.841 C2 C3 C10 72.618
C2 C6 C3 35.687 C2 C6 H4 49.579
C2 C6 H5 33.068 C3 C2 C6 119.472
C3 C6 H4 51.789 C3 C6 H5 66.148
C3 C10 H7 9.425 C3 C10 H8 65.002
C3 C10 H9 74.635 H4 C6 H5 74.518
C6 C3 C10 86.584 H7 C10 H8 58.582
H7 C10 H9 77.913 H8 C10 H9 60.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability