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

using model chemistry: MP2=FULL/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-194.037360
Energy at 298.15K-194.044575
HF Energy-193.385225
Nuclear repulsion energy163.023187
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-pVDZ
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 3296 3133 7.17      
2 A1 3243 3082 7.68      
3 A1 3082 2929 32.14      
4 A1 1542 1466 0.08      
5 A1 1485 1411 4.31      
6 A1 1300 1236 0.31      
7 A1 1123 1067 3.70      
8 A1 1066 1013 0.08      
9 A1 943 896 3.16      
10 A1 821 780 0.20      
11 A2 3111 2956 0.00      
12 A2 1232 1171 0.00      
13 A2 998 948 0.00      
14 A2 648 616 0.00      
15 A2 69 65 0.00      
16 B1 3129 2974 35.60      
17 B1 1150 1093 3.67      
18 B1 1007 957 4.32      
19 B1 814 774 3.99      
20 B1 636 605 53.09      
21 B1 426 405 7.82      
22 B2 3283 3121 4.03      
23 B2 3069 2917 31.41      
24 B2 1459 1387 0.75      
25 B2 1402 1332 6.23      
26 B2 1319 1253 1.51      
27 B2 1297 1233 3.78      
28 B2 1065 1012 0.41      
29 B2 923 877 17.72      
30 B2 724 689 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 22829.3 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 21697.0 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-pVDZ
ABC
0.26088 0.25384 0.13514

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.268
C2 0.000 1.146 0.506
C3 0.000 -1.146 0.506
C4 0.000 0.773 -0.965
C5 0.000 -0.773 -0.965
H6 0.000 0.000 2.363
H7 0.000 2.214 0.728
H8 0.000 -2.214 0.728
H9 0.883 1.190 -1.481
H10 -0.883 1.190 -1.481
H11 0.883 -1.190 -1.481
H12 -0.883 -1.190 -1.481

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37671.37672.36302.36301.09442.27902.27903.12373.12373.12373.1237
C21.37672.29291.51772.41822.18201.09033.36782.17542.17543.19243.1924
C31.37672.29292.41821.51772.18203.36781.09033.19243.19242.17542.1754
C42.36301.51772.41821.54573.41602.22293.43301.10511.10512.21392.2139
C52.36302.41821.51771.54573.41603.43302.22292.21392.21391.10511.1051
H61.09442.18202.18203.41603.41602.75232.75234.11994.11994.11994.1199
H72.27901.09033.36782.22293.43302.75234.42802.58992.58994.15334.1533
H82.27903.36781.09033.43302.22292.75234.42804.15334.15332.58992.5899
H93.12372.17543.19241.10512.21394.11992.58994.15331.76652.38072.9646
H103.12372.17543.19241.10512.21394.11992.58994.15331.76652.96462.3807
H113.12373.19242.17542.21391.10514.11994.15332.58992.38072.96461.7665
H123.12373.19242.17542.21391.10514.11994.15332.58992.96462.38071.7665

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 109.362 C1 C2 H7 134.664
C1 C3 C5 109.362 C1 C3 H8 134.664
C2 C1 C3 112.773 C2 C1 H6 123.614
C2 C4 C5 104.252 C2 C4 H9 111.101
C2 C4 H10 111.101 C3 C1 H6 123.614
C3 C5 C4 104.252 C3 C5 H11 111.101
C3 C5 H12 111.101 C4 C2 H7 115.974
C4 C5 H11 112.198 C4 C5 H12 112.198
C5 C3 H8 115.974 C5 C4 H9 112.198
C5 C4 H10 112.198 H9 C4 H10 106.117
H11 C5 H12 106.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability