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

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

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/6-31+G**
 hartrees
Energy at 0K-194.086023
Energy at 298.15K-194.093204
HF Energy-193.386312
Nuclear repulsion energy163.432993
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/6-31+G**
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 3314 3123 9.15      
2 A1 3263 3075 9.46      
3 A1 3103 2924 41.36      
4 A1 1554 1465 0.25      
5 A1 1548 1459 2.72      
6 A1 1343 1266 0.16      
7 A1 1143 1077 3.30      
8 A1 1070 1009 0.01      
9 A1 942 887 2.10      
10 A1 828 780 0.12      
11 A2 3121 2941 0.00      
12 A2 1253 1181 0.00      
13 A2 1030 971 0.00      
14 A2 620 585 0.00      
15 A2 60 56 0.00      
16 B1 3140 2959 43.50      
17 B1 1167 1100 4.89      
18 B1 964 908 7.77      
19 B1 836 787 3.77      
20 B1 612 576 75.30      
21 B1 416 392 9.94      
22 B2 3302 3112 9.59      
23 B2 3090 2912 35.67      
24 B2 1525 1437 0.54      
25 B2 1437 1354 5.59      
26 B2 1353 1275 0.00      
27 B2 1343 1266 4.96      
28 B2 1095 1032 0.46      
29 B2 930 876 13.77      
30 B2 735 693 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 23068.3 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 21737.2 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/6-31+G**
ABC
0.26224 0.25439 0.13555

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.268
C2 0.000 1.145 0.506
C3 0.000 -1.145 0.506
C4 0.000 0.773 -0.965
C5 0.000 -0.773 -0.965
H6 0.000 0.000 2.351
H7 0.000 2.201 0.726
H8 0.000 -2.201 0.726
H9 0.876 1.183 -1.476
H10 -0.876 1.183 -1.476
H11 0.876 -1.183 -1.476
H12 -0.876 -1.183 -1.476

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37511.37512.36342.36341.08282.26722.26723.11423.11423.11423.1142
C21.37512.28971.51802.41712.17101.07933.35352.16802.16803.18053.1805
C31.37512.28972.41711.51802.17103.35351.07933.18053.18052.16802.1680
C42.36341.51802.41711.54523.40512.21433.42151.09411.09412.20262.2026
C52.36342.41711.51801.54523.40513.42152.21432.20262.20261.09411.0941
H61.08282.17102.17103.40513.40512.73612.73614.10064.10064.10064.1006
H72.26721.07933.35352.21433.42152.73614.40302.58012.58014.13174.1317
H82.26723.35351.07933.42152.21432.73614.40304.13174.13172.58012.5801
H93.11422.16803.18051.09412.20264.10062.58014.13171.75242.36522.9436
H103.11422.16803.18051.09412.20264.10062.58014.13171.75242.94362.3652
H113.11423.18052.16802.20261.09414.10064.13172.58012.36522.94361.7524
H123.11423.18052.16802.20261.09414.10064.13172.58012.94362.36521.7524

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 109.447 C1 C2 H7 134.606
C1 C3 C5 109.447 C1 C3 H8 134.606
C2 C1 C3 112.719 C2 C1 H6 123.641
C2 C4 C5 104.194 C2 C4 H9 111.157
C2 C4 H10 111.157 C3 C1 H6 123.641
C3 C5 C4 104.194 C3 C5 H11 111.157
C3 C5 H12 111.157 C4 C2 H7 115.948
C4 C5 H11 112.007 C4 C5 H12 112.007
C5 C3 H8 115.948 C5 C4 H9 112.007
C5 C4 H10 112.007 H9 C4 H10 106.430
H11 C5 H12 106.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability