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

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-194.296449
Energy at 298.15K-194.303784
HF Energy-193.435399
Nuclear repulsion energy164.890996
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/cc-pVTZ
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 3304 3137 7.19      
2 A1 3245 3081 5.64      
3 A1 3087 2931 30.35      
4 A1 1551 1473 0.00      
5 A1 1510 1434 5.38      
6 A1 1299 1233 0.66      
7 A1 1141 1083 3.91      
8 A1 1066 1012 0.04      
9 A1 945 897 2.94      
10 A1 829 787 0.20      
11 A2 3095 2938 0.00      
12 A2 1248 1185 0.00      
13 A2 1011 960 0.00      
14 A2 688 653 0.00      
15 A2 84 80 0.00      
16 B1 3115 2958 27.71      
17 B1 1166 1107 4.84      
18 B1 1042 990 3.84      
19 B1 832 790 9.29      
20 B1 655 622 59.96      
21 B1 450 428 6.30      
22 B2 3289 3123 3.20      
23 B2 3076 2920 26.32      
24 B2 1488 1413 1.79      
25 B2 1415 1343 6.92      
26 B2 1333 1265 0.16      
27 B2 1304 1238 6.62      
28 B2 1079 1025 0.28      
29 B2 924 877 20.53      
30 B2 731 694 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 23001.7 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 21837.8 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/cc-pVTZ
ABC
0.26687 0.25922 0.13808

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.254
C2 0.000 1.133 0.501
C3 0.000 -1.133 0.501
C4 0.000 0.767 -0.956
C5 0.000 -0.767 -0.956
H6 0.000 0.000 2.330
H7 0.000 2.181 0.730
H8 0.000 -2.181 0.730
H9 0.871 1.176 -1.464
H10 -0.871 1.176 -1.464
H11 0.871 -1.176 -1.464
H12 -0.871 -1.176 -1.464

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.36021.36022.33952.33951.07622.24262.24263.08693.08693.08693.0869
C21.36022.26651.50312.39512.15131.07213.32182.15032.15033.15543.1554
C31.36022.26652.39511.50312.15133.32181.07213.15543.15542.15032.1503
C42.33951.50312.39511.53423.37472.20063.39621.08811.08812.18952.1895
C52.33952.39511.50311.53423.37473.39622.20062.18952.18951.08811.0881
H61.07622.15132.15133.37473.37472.70452.70454.06664.06664.06664.0666
H72.24261.07213.32182.20063.39622.70454.36132.56562.56564.10414.1041
H82.24263.32181.07213.39622.20062.70454.36134.10414.10412.56562.5656
H93.08692.15033.15541.08812.18954.06662.56564.10411.74212.35282.9276
H103.08692.15033.15541.08812.18954.06662.56564.10411.74212.92762.3528
H113.08693.15542.15032.18951.08814.06664.10412.56562.35282.92761.7421
H123.08693.15542.15032.18951.08814.06664.10412.56562.92762.35281.7421

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 109.481 C1 C2 H7 134.093
C1 C3 C5 109.481 C1 C3 H8 134.093
C2 C1 C3 112.842 C2 C1 H6 123.579
C2 C4 C5 104.099 C2 C4 H9 111.155
C2 C4 H10 111.155 C3 C1 H6 123.579
C3 C5 C4 104.099 C3 C5 H11 111.155
C3 C5 H12 111.155 C4 C2 H7 116.426
C4 C5 H11 112.095 C4 C5 H12 112.095
C5 C3 H8 116.426 C5 C4 H9 112.095
C5 C4 H10 112.095 H9 C4 H10 106.359
H11 C5 H12 106.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability