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

using model chemistry: CCD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-194.077219
Energy at 298.15K-194.084499
HF Energy-193.382265
Nuclear repulsion energy163.588753
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 CCD/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 3319 3112 8.82      
2 A1 3267 3063 11.29      
3 A1 3110 2916 39.54      
4 A1 1565 1468 0.18      
5 A1 1560 1462 1.17      
6 A1 1349 1265 0.01      
7 A1 1148 1076 1.99      
8 A1 1075 1008 0.00      
9 A1 947 888 1.48      
10 A1 830 778 0.18      
11 A2 3130 2934 0.00      
12 A2 1274 1194 0.00      
13 A2 1035 971 0.00      
14 A2 630 591 0.00      
15 A2 101 94 0.00      
16 B1 3148 2952 53.59      
17 B1 1184 1110 2.94      
18 B1 977 916 5.24      
19 B1 842 789 2.34      
20 B1 625 586 48.05      
21 B1 419 392 7.59      
22 B2 3307 3101 10.43      
23 B2 3098 2905 35.07      
24 B2 1537 1441 0.08      
25 B2 1443 1353 5.88      
26 B2 1360 1275 0.02      
27 B2 1348 1264 3.36      
28 B2 1100 1031 0.30      
29 B2 935 877 10.02      
30 B2 736 690 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 23198.1 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 21750.5 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 CCD/6-31G**
ABC
0.26279 0.25487 0.13582

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.266
C2 0.000 1.143 0.506
C3 0.000 -1.143 0.506
C4 0.000 0.772 -0.964
C5 0.000 -0.772 -0.964
H6 0.000 0.000 2.349
H7 0.000 2.199 0.727
H8 0.000 -2.199 0.727
H9 0.875 1.182 -1.476
H10 -0.875 1.182 -1.476
H11 0.875 -1.182 -1.476
H12 -0.875 -1.182 -1.476

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37301.37302.36062.36061.08252.26422.26423.11233.11233.11233.1123
C21.37302.28651.51642.41472.16881.07873.34962.16722.16723.17863.1786
C31.37302.28652.41471.51642.16883.34961.07873.17863.17862.16722.1672
C42.36061.51642.41471.54443.40202.21293.41901.09371.09372.20192.2019
C52.36062.41471.51641.54443.40203.41902.21292.20192.20191.09371.0937
H61.08252.16882.16883.40203.40202.73232.73234.09834.09834.09834.0983
H72.26421.07873.34962.21293.41902.73234.39812.57972.57974.12984.1298
H82.26423.34961.07873.41902.21292.73234.39814.12984.12982.57972.5797
H93.11232.16723.17861.09372.20194.09832.57974.12981.75022.36472.9419
H103.11232.16723.17861.09372.20194.09832.57974.12981.75022.94192.3647
H113.11233.17862.16722.20191.09374.09834.12982.57972.36472.94191.7502
H123.11233.17862.16722.20191.09374.09834.12982.57972.94192.36471.7502

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 109.467 C1 C2 H7 134.534
C1 C3 C5 109.467 C1 C3 H8 134.534
C2 C1 C3 112.740 C2 C1 H6 123.630
C2 C4 C5 104.163 C2 C4 H9 111.232
C2 C4 H10 111.232 C3 C1 H6 123.630
C3 C5 C4 104.163 C3 C5 H11 111.232
C3 C5 H12 111.232 C4 C2 H7 115.998
C4 C5 H11 112.024 C4 C5 H12 112.024
C5 C3 H8 115.998 C5 C4 H9 112.024
C5 C4 H10 112.024 H9 C4 H10 106.289
H11 C5 H12 106.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability