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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-155.465127
Energy at 298.15K-155.470932
HF Energy-154.897407
Nuclear repulsion energy109.507906
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3233 3021 10.92      
2 A1 3216 3005 7.36      
3 A1 1879 1756 0.28      
4 A1 1546 1444 0.04      
5 A1 1497 1399 0.01      
6 A1 1100 1028 1.24      
7 A1 1086 1015 6.10      
8 A1 772 722 4.13      
9 A2 3303 3087 0.00      
10 A2 1210 1130 0.00      
11 A2 991 926 0.00      
12 A2 636 594 0.00      
13 B1 3314 3097 13.63      
14 B1 1134 1060 1.12      
15 B1 909 849 35.68      
16 B1 781 730 0.58      
17 B1 281 263 3.03      
18 B2 3333 3114 10.27      
19 B2 3214 3003 10.66      
20 B2 1511 1412 0.29      
21 B2 1179 1102 6.83      
22 B2 1110 1037 3.35      
23 B2 941 879 11.48      
24 B2 360 336 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 19268.5 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 18004.5 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=FULL/6-31G**
ABC
0.65673 0.22937 0.18225

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.639
C2 0.000 0.000 0.315
H3 0.000 0.924 2.199
H4 0.000 -0.924 2.199
C5 0.000 0.768 -0.932
C6 0.000 -0.768 -0.932
H7 0.910 1.267 -1.236
H8 -0.910 1.267 -1.236
H9 -0.910 -1.267 -1.236
H10 0.910 -1.267 -1.236

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32451.08061.08062.68292.68293.27123.27123.27123.2712
C21.32452.09872.09871.46371.46372.19962.19962.19962.1996
H31.08062.09871.84863.13443.55843.56993.56994.17494.1749
H41.08062.09871.84863.55843.13444.17494.17493.56993.5699
C52.68291.46373.13443.55841.53501.08161.08162.24952.2495
C62.68291.46373.55843.13441.53502.24952.24951.08161.0816
H73.27122.19963.56994.17491.08162.24951.81923.11982.5345
H83.27122.19963.56994.17491.08162.24951.81922.53453.1198
H93.27122.19964.17493.56992.24951.08163.11982.53451.8192
H103.27122.19964.17493.56992.24951.08162.53453.11981.8192

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.374 C1 C2 C6 148.374
C2 C1 H3 121.197 C2 C1 H4 121.197
C2 C5 C6 58.374 C2 C5 H7 118.816
C2 C5 H8 118.816 C2 C6 C5 58.374
C2 C6 H9 118.816 C2 C6 H10 118.816
H3 C1 H4 117.605 C5 C2 C6 63.252
C5 C6 H9 117.518 C5 C6 H10 117.518
C6 C5 H7 117.518 C6 C5 H8 117.518
H7 C5 H8 114.490 H9 C6 H10 114.490
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability