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All results from a given calculation for C5H5 (cyclopentadienyl radical)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2B1

Conformer 1 (D5H)

Jump to S1C2
Vibrational Frequencies calculated at B3LYP/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at B3LYP/aug-cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-193.535555
Energy at 298.15K 
HF Energy-193.535555
Nuclear repulsion energy149.081962
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 B3LYP/aug-cc-pVTZ
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 3242 3137 0.03      
2 A1 3235 3130 6.75      
3 A1 3203 3099 0.90      
4 A1 1568 1517 0.47      
5 A1 1444 1397 2.72      
6 A1 1144 1107 0.02      
7 A1 1082 1047 9.44      
8 A1 1033 999 12.02      
9 A1 849 821 0.23      
10 A2 918 888 0.00      
11 A2 827 800 0.00      
12 A2 526 509 0.00      
13 B1 897 868 6.83      
14 B1 729 706 1.49      
15 B1 683 661 111.50      
16 B1 490 474 9.86      
17 B2 3219 3115 13.50      
18 B2 3205 3100 6.36      
19 B2 1400 1354 36.43      
20 B2 1299 1257 0.00      
21 B2 1218 1178 1.59      
22 B2 968 936 0.33      
23 B2 919 890 3.38      
24 B2 10i 10i 7.36      

Unscaled Zero Point Vibrational Energy (zpe) 17043.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 16489.7 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 B3LYP/aug-cc-pVTZ
ABC
0.31146 0.28512 0.14886

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.221
C2 0.000 1.121 0.393
C3 0.000 0.677 -1.004
C4 0.000 -0.677 -1.004
C5 0.000 -1.121 0.393
H6 0.000 0.000 2.298
H7 0.000 2.152 0.714
H8 0.000 1.330 -1.861
H9 0.000 -1.330 -1.861
H10 0.000 -2.152 0.714

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10
C11.39412.32542.32541.39411.07682.21093.35683.35682.2109
C21.39411.46512.27682.24262.21071.07972.26313.33003.2891
C32.32541.46511.35452.27683.37012.26391.07782.18303.3098
C42.32542.27681.35451.46513.37013.30982.18301.07782.2639
C51.39412.24262.27681.46512.21073.28913.33002.26311.0797
H61.07682.21073.37013.37012.21072.67204.36634.36632.6720
H72.21091.07972.26393.30983.28912.67202.70294.33104.3041
H83.35682.26311.07782.18303.33004.36632.70292.66084.3310
H93.35683.33002.18301.07782.26314.36634.33102.66082.7029
H102.21093.28913.30982.26391.07972.67204.30414.33102.7029

picture of cyclopentadienyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 108.815 C1 C2 H7 126.217
C1 C5 C4 108.815 C1 C5 H10 126.217
C2 C1 C5 107.083 C2 C1 H6 126.459
C2 C3 C4 107.644 C2 C3 H8 125.053
C3 C2 H7 124.969 C3 C4 C5 107.644
C3 C4 H9 127.303 C4 C3 H8 127.303
C4 C5 H10 124.969 C5 C1 H6 126.459
C5 C4 H9 125.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability