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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-155.359538
Energy at 298.15K-155.365444
HF Energy-154.887124
Nuclear repulsion energy109.688774
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 CID/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 A1 3257 3008 10.84      
2 A1 3237 2990 9.96      
3 A1 1951 1802 2.07      
4 A1 1576 1456 0.10      
5 A1 1525 1409 0.29      
6 A1 1140 1053 0.16      
7 A1 1116 1031 6.53      
8 A1 793 733 6.48      
9 A2 3309 3057 0.00      
10 A2 1237 1143 0.00      
11 A2 1011 934 0.00      
12 A2 652 602 0.00      
13 B1 3321 3068 18.45      
14 B1 1163 1074 0.89      
15 B1 969 895 42.80      
16 B1 801 740 0.93      
17 B1 309 285 3.53      
18 B2 3339 3085 12.62      
19 B2 3232 2986 14.22      
20 B2 1538 1421 0.80      
21 B2 1213 1121 8.40      
22 B2 1153 1065 3.40      
23 B2 960 887 12.30      
24 B2 371 342 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 19586.2 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 18091.7 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 CID/6-31G*
ABC
0.65878 0.23040 0.18305

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.633
C2 0.000 0.000 0.317
H3 0.000 -0.923 2.198
H4 0.000 0.923 2.198
C5 0.000 -0.765 -0.930
C6 0.000 0.765 -0.930
H7 -0.909 -1.269 -1.234
H8 0.909 -1.269 -1.234
H9 0.909 1.269 -1.234
H10 -0.909 1.269 -1.234

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.31541.08191.08192.67482.67483.26413.26413.26413.2641
C21.31542.09442.09441.46361.46362.20082.20082.20082.2008
H31.08192.09441.84563.13183.55413.56653.56654.17194.1719
H41.08192.09441.84563.55413.13184.17194.17193.56653.5665
C52.67481.46363.13183.55411.53001.08301.08302.24882.2488
C62.67481.46363.55413.13181.53002.24882.24881.08301.0830
H73.26412.20083.56654.17191.08302.24881.81833.12252.5385
H83.26412.20083.56654.17191.08302.24881.81832.53853.1225
H93.26412.20084.17193.56652.24881.08303.12252.53851.8183
H103.26412.20084.17193.56652.24881.08302.53853.12251.8183

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.486 C1 C2 C6 148.486
C2 C1 H3 121.465 C2 C1 H4 121.465
C2 C5 C6 58.486 C2 C5 H7 118.829
C2 C5 H8 118.829 C2 C6 C5 58.486
C2 C6 H9 118.829 C2 C6 H10 118.829
H3 C1 H4 117.070 C5 C2 C6 63.029
C5 C6 H9 117.750 C5 C6 H10 117.750
C6 C5 H7 117.750 C6 C5 H8 117.750
H7 C5 H8 114.171 H9 C6 H10 114.171
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability