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All results from a given calculation for C5H7 (cyclopentenyl radical)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-191.295708
Energy at 298.15K-191.302868
HF Energy-191.062842
Nuclear repulsion energy161.175385
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/STO-3G
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 3569 3173 0.25      
2 A1 3530 3138 0.49      
3 A1 3391 3014 3.16      
4 A1 1726 1534 0.06      
5 A1 1642 1459 1.87      
6 A1 1464 1301 0.35      
7 A1 1201 1067 0.06      
8 A1 1148 1021 0.83      
9 A1 1016 904 0.26      
10 A1 872 775 0.16      
11 A2 3490 3103 0.00      
12 A2 1384 1231 0.00      
13 A2 1117 993 0.00      
14 A2 635 564 0.00      
15 A2 169 150 0.00      
16 B1 3495 3107 7.29      
17 B1 1272 1131 0.15      
18 B1 1052 935 1.68      
19 B1 882 784 0.08      
20 B1 641 570 15.43      
21 B1 425 378 3.18      
22 B2 3551 3157 7.23      
23 B2 3384 3008 5.16      
24 B2 1710 1520 0.84      
25 B2 1526 1357 5.01      
26 B2 1446 1285 0.20      
27 B2 1384 1230 0.05      
28 B2 1141 1015 0.37      
29 B2 983 874 1.20      
30 B2 770 685 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 25007.2 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 22228.9 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/STO-3G
ABC
0.25579 0.24650 0.13180

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.285
C2 0.000 1.157 0.518
C3 0.000 -1.157 0.518
C4 0.000 0.785 -0.982
C5 0.000 -0.785 -0.982
H6 0.000 0.000 2.384
H7 0.000 2.232 0.735
H8 0.000 -2.232 0.735
H9 0.890 1.196 -1.498
H10 -0.890 1.196 -1.498
H11 0.890 -1.196 -1.498
H12 -0.890 -1.196 -1.498

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.38791.38792.39892.39891.09942.29842.29843.15663.15663.15663.1566
C21.38792.31401.54592.45382.19561.09633.39562.20382.20383.22383.2238
C31.38792.31402.45381.54592.19563.39561.09633.22383.22382.20382.2038
C42.39891.54592.45381.56933.45662.24563.47081.10791.10792.23202.2320
C52.39892.45381.54591.56933.45663.47082.24562.23202.23201.10791.1079
H61.09942.19562.19563.45663.45662.77492.77494.15824.15824.15824.1582
H72.29841.09633.39562.24563.47082.77494.46342.61692.61694.18654.1865
H82.29843.39561.09633.47082.24562.77494.46344.18654.18652.61692.6169
H93.15662.20383.22381.10792.23204.15822.61694.18651.78052.39252.9823
H103.15662.20383.22381.10792.23204.15822.61694.18651.78052.98232.3925
H113.15663.22382.20382.23201.10794.15824.18652.61692.39252.98231.7805
H123.15663.22382.20382.23201.10794.15824.18652.61692.98232.39251.7805

picture of cyclopentenyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 109.590 C1 C2 H7 135.067
C1 C3 C5 109.590 C1 C3 H8 135.067
C2 C1 C3 112.944 C2 C1 H6 123.528
C2 C4 C5 103.938 C2 C4 H9 111.217
C2 C4 H10 111.217 C3 C1 H6 123.528
C3 C5 C4 103.938 C3 C5 H11 111.217
C3 C5 H12 111.217 C4 C2 H7 115.343
C4 C5 H11 111.809 C4 C5 H12 111.809
C5 C3 H8 115.343 C5 C4 H9 111.809
C5 C4 H10 111.809 H9 C4 H10 106.939
H11 C5 H12 106.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability