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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-194.019511
Energy at 298.15K-194.026773
HF Energy-193.369957
Nuclear repulsion energy163.324983
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 3271 3096 8.00      
2 A1 3220 3047 10.79      
3 A1 3067 2903 35.46      
4 A1 1560 1476 1.31      
5 A1 1553 1470 1.09      
6 A1 1344 1272 0.21      
7 A1 1146 1084 2.74      
8 A1 1075 1018 0.02      
9 A1 946 896 1.96      
10 A1 830 786 0.18      
11 A2 3083 2918 0.00      
12 A2 1268 1200 0.00      
13 A2 1037 982 0.00      
14 A2 624 591 0.00      
15 A2 106 100 0.00      
16 B1 3102 2936 48.13      
17 B1 1182 1119 2.88      
18 B1 963 911 6.20      
19 B1 842 797 1.61      
20 B1 621 588 54.91      
21 B1 420 398 8.68      
22 B2 3260 3086 10.23      
23 B2 3056 2892 32.53      
24 B2 1532 1450 0.44      
25 B2 1432 1355 8.41      
26 B2 1352 1280 0.03      
27 B2 1342 1270 3.72      
28 B2 1100 1041 0.25      
29 B2 935 885 11.31      
30 B2 736 697 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 23002.0 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 21771.4 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
0.26209 0.25425 0.13552

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 1.267
C2 0.000 1.144 0.507
C3 0.000 -1.144 0.507
C4 0.000 0.773 -0.965
C5 0.000 -0.773 -0.965
H6 0.000 0.000 2.356
H7 0.000 2.206 0.729
H8 0.000 -2.206 0.729
H9 0.879 1.186 -1.480
H10 -0.879 1.186 -1.480
H11 0.879 -1.186 -1.480
H12 -0.879 -1.186 -1.480

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37331.37332.36172.36171.08892.27032.27033.11883.11883.11883.1188
C21.37332.28711.51722.41612.17441.08513.35662.17302.17303.18563.1856
C31.37332.28712.41611.51722.17443.35661.08513.18563.18562.17302.1730
C42.36171.51722.41611.54593.40932.21833.42651.09981.09982.20852.2085
C52.36172.41611.51721.54593.40933.42652.21832.20852.20851.09981.0998
H61.08892.17442.17443.40933.40932.74072.74074.11044.11044.11044.1104
H72.27031.08513.35662.21833.42652.74074.41132.58702.58704.14234.1423
H82.27033.35661.08513.42652.21832.74074.41134.14234.14232.58702.5870
H93.11882.17303.18561.09982.20854.11042.58704.14231.75852.37252.9532
H103.11882.17303.18561.09982.20854.11042.58704.14231.75852.95322.3725
H113.11883.18562.17302.20851.09984.11044.14232.58702.37252.95321.7585
H123.11883.18562.17302.20851.09984.11044.14232.58702.95322.37251.7585

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 109.484 C1 C2 H7 134.546
C1 C3 C5 109.484 C1 C3 H8 134.546
C2 C1 C3 112.754 C2 C1 H6 123.623
C2 C4 C5 104.139 C2 C4 H9 111.267
C2 C4 H10 111.267 C3 C1 H6 123.623
C3 C5 C4 104.139 C3 C5 H11 111.267
C3 C5 H12 111.267 C4 C2 H7 115.970
C4 C5 H11 112.073 C4 C5 H12 112.073
C5 C3 H8 115.970 C5 C4 H9 112.073
C5 C4 H10 112.073 H9 C4 H10 106.153
H11 C5 H12 106.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability