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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: CCSD=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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-155.455772
Energy at 298.15K-155.461569
HF Energy-154.886197
Nuclear repulsion energy109.092161
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 CCSD=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 A1 3171 3012 13.07      
2 A1 3157 2999 10.10      
3 A1 1882 1788 1.02      
4 A1 1536 1459 0.03      
5 A1 1487 1413 0.23      
6 A1 1102 1047 0.02      
7 A1 1084 1030 7.47      
8 A1 766 727 5.30      
9 A2 3228 3066 0.00      
10 A2 1204 1144 0.00      
11 A2 982 933 0.00      
12 A2 635 603 0.00      
13 B1 3240 3077 19.54      
14 B1 1132 1075 0.91      
15 B1 915 869 39.22      
16 B1 784 745 0.71      
17 B1 289 275 3.18      
18 B2 3251 3088 13.62      
19 B2 3154 2995 14.65      
20 B2 1501 1426 0.77      
21 B2 1182 1123 7.53      
22 B2 1116 1060 3.41      
23 B2 935 888 11.11      
24 B2 360 342 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 19046.4 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 18090.3 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 CCSD=FULL/6-31G*
ABC
0.65229 0.22777 0.18104

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.654
C2 0.000 0.000 0.307
H3 0.000 0.896 2.174
H4 0.000 -0.896 2.174
C5 0.000 0.746 -0.894
C6 0.000 -0.746 -0.894
H7 0.919 0.926 -1.348
H8 -0.919 0.926 -1.348
H9 -0.919 -0.926 -1.348
H10 0.919 -0.926 -1.348

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.34691.03601.03602.65472.65473.27283.27283.27283.2728
C21.34692.07102.07101.41381.41382.10702.10702.10702.1070
H31.03602.07101.79173.07163.47983.63983.63984.07024.0702
H41.03602.07101.79173.47983.07164.07024.07023.63983.6398
C52.65471.41383.07163.47981.49261.04021.04021.96141.9614
C62.65471.41383.47983.07161.49261.96141.96141.04021.0402
H73.27282.10703.63984.07021.04021.96141.83712.60891.8524
H83.27282.10703.63984.07021.04021.96141.83711.85242.6089
H93.27282.10704.07023.63981.96141.04022.60891.85241.8371
H103.27282.10704.07023.63981.96141.04021.85242.60891.8371

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.137 C1 C2 C6 148.137
C2 C1 H3 120.144 C2 C1 H4 120.144
C2 C5 C6 58.137 C2 C5 H7 117.508
C2 C5 H8 117.508 C2 C6 C5 58.137
C2 C6 H9 117.508 C2 C6 H10 117.508
H3 C1 H4 119.711 C5 C2 C6 63.726
C5 C6 H9 99.958 C5 C6 H10 99.958
C6 C5 H7 99.958 C6 C5 H8 99.958
H7 C5 H8 124.015 H9 C6 H10 124.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability