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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-193.995322
Energy at 298.15K-194.002586
HF Energy-193.369935
Nuclear repulsion energy163.925319
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/6-31G*
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 3302 3111 6.59      
2 A1 3247 3059 9.64      
3 A1 3093 2914 29.41      
4 A1 1571 1480 0.37      
5 A1 1557 1467 2.60      
6 A1 1336 1259 0.32      
7 A1 1156 1090 3.28      
8 A1 1081 1019 0.00      
9 A1 952 897 2.52      
10 A1 832 784 0.24      
11 A2 3118 2938 0.00      
12 A2 1268 1195 0.00      
13 A2 1037 977 0.00      
14 A2 636 600 0.00      
15 A2 90 85 0.00      
16 B1 3135 2954 39.05      
17 B1 1185 1117 3.05      
18 B1 986 929 5.73      
19 B1 845 796 1.75      
20 B1 636 599 57.50      
21 B1 425 400 9.45      
22 B2 3291 3101 6.68      
23 B2 3083 2905 29.18      
24 B2 1535 1446 0.57      
25 B2 1433 1350 10.04      
26 B2 1354 1275 0.06      
27 B2 1335 1258 4.90      
28 B2 1105 1041 0.20      
29 B2 939 885 14.61      
30 B2 736 693 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 23148.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 21810.7 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 MP2=FULL/6-31G*
ABC
0.26397 0.25628 0.13657

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.261
C2 0.000 1.139 0.504
C3 0.000 -1.139 0.504
C4 0.000 0.771 -0.961
C5 0.000 -0.771 -0.961
H6 0.000 0.000 2.348
H7 0.000 2.198 0.731
H8 0.000 -2.198 0.731
H9 0.877 1.183 -1.475
H10 -0.877 1.183 -1.475
H11 0.877 -1.183 -1.475
H12 -0.877 -1.183 -1.475

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.36731.36732.35152.35151.08692.26072.26073.10743.10743.10743.1074
C21.36732.27781.51072.40682.16691.08273.34422.16562.16563.17503.1750
C31.36732.27782.40681.51072.16693.34421.08273.17503.17502.16562.1656
C42.35151.51072.40681.54123.39712.21303.41631.09741.09742.20272.2027
C52.35152.40681.51071.54123.39713.41632.21302.20272.20271.09741.0974
H61.08692.16692.16693.39713.39712.72852.72854.09704.09704.09704.0970
H72.26071.08273.34422.21303.41632.72854.39532.58152.58154.13114.1311
H82.26073.34421.08273.41632.21302.72854.39534.13114.13112.58152.5815
H93.10742.16563.17501.09742.20274.09702.58154.13111.75412.36662.9458
H103.10742.16563.17501.09742.20274.09702.58154.13111.75412.94582.3666
H113.10743.17502.16562.20271.09744.09704.13112.58152.36662.94581.7541
H123.10743.17502.16562.20271.09744.09704.13112.58152.94582.36661.7541

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 109.486 C1 C2 H7 134.338
C1 C3 C5 109.486 C1 C3 H8 134.338
C2 C1 C3 112.808 C2 C1 H6 123.596
C2 C4 C5 104.110 C2 C4 H9 111.285
C2 C4 H10 111.285 C3 C1 H6 123.596
C3 C5 C4 104.110 C3 C5 H11 111.285
C3 C5 H12 111.285 C4 C2 H7 116.176
C4 C5 H11 112.092 C4 C5 H12 112.092
C5 C3 H8 116.176 C5 C4 H9 112.092
C5 C4 H10 112.092 H9 C4 H10 106.111
H11 C5 H12 106.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability