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

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-194.131899
Energy at 298.15K-194.139087
HF Energy-193.403550
Nuclear repulsion energy163.775917
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/6-311G*
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 3279 3105 8.62      
2 A1 3226 3055 9.37      
3 A1 3074 2911 33.61      
4 A1 1547 1465 0.58      
5 A1 1530 1449 5.17      
6 A1 1316 1246 1.09      
7 A1 1138 1078 4.47      
8 A1 1072 1015 0.01      
9 A1 945 895 3.53      
10 A1 827 783 0.19      
11 A2 3097 2933 0.00      
12 A2 1257 1190 0.00      
13 A2 1019 965 0.00      
14 A2 628 595 0.00      
15 A2 61 58 0.00      
16 B1 3117 2952 39.06      
17 B1 1177 1115 3.96      
18 B1 973 921 8.05      
19 B1 823 779 2.95      
20 B1 623 590 73.57      
21 B1 425 403 10.45      
22 B2 3267 3094 7.32      
23 B2 3063 2901 31.61      
24 B2 1506 1427 1.80      
25 B2 1410 1335 12.25      
26 B2 1330 1260 0.82      
27 B2 1311 1242 5.58      
28 B2 1078 1021 0.16      
29 B2 925 876 19.00      
30 B2 729 691 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 22885.1 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 21674.4 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 MP2=FULL/6-311G*
ABC
0.26335 0.25582 0.13627

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.262
C2 0.000 1.141 0.505
C3 0.000 -1.141 0.505
C4 0.000 0.771 -0.962
C5 0.000 -0.771 -0.962
H6 0.000 0.000 2.349
H7 0.000 2.200 0.730
H8 0.000 -2.200 0.730
H9 0.877 1.184 -1.474
H10 -0.877 1.184 -1.474
H11 0.877 -1.184 -1.474
H12 -0.877 -1.184 -1.474

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.36941.36942.35422.35421.08652.26302.26303.10803.10803.10803.1080
C21.36942.28201.51332.41002.16811.08233.34822.16552.16553.17693.1769
C31.36942.28202.41001.51332.16813.34821.08233.17693.17692.16552.1655
C42.35421.51332.41001.54173.39952.21513.41891.09651.09652.20292.2029
C52.35422.41001.51331.54173.39953.41892.21512.20292.20291.09651.0965
H61.08652.16812.16813.39953.39952.73082.73084.09724.09724.09724.0972
H72.26301.08233.34822.21513.41892.73084.39932.58112.58114.13274.1327
H82.26303.34821.08233.41892.21512.73084.39934.13274.13272.58112.5811
H93.10802.16553.17691.09652.20294.09722.58114.13271.75412.36792.9468
H103.10802.16553.17691.09652.20294.09722.58114.13271.75412.94682.3679
H113.10803.17692.16552.20291.09654.09724.13272.58112.36792.94681.7541
H123.10803.17692.16552.20291.09654.09724.13272.58112.94682.36791.7541

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 109.407 C1 C2 H7 134.417
C1 C3 C5 109.407 C1 C3 H8 134.417
C2 C1 C3 112.868 C2 C1 H6 123.566
C2 C4 C5 104.159 C2 C4 H9 111.147
C2 C4 H10 111.147 C3 C1 H6 123.566
C3 C5 C4 104.159 C3 C5 H11 111.147
C3 C5 H12 111.147 C4 C2 H7 116.176
C4 C5 H11 112.133 C4 C5 H12 112.133
C5 C3 H8 116.176 C5 C4 H9 112.133
C5 C4 H10 112.133 H9 C4 H10 106.244
H11 C5 H12 106.244
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability