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

using model chemistry: MP2=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-194.063057
Energy at 298.15K 
HF Energy-193.386138
Nuclear repulsion energy163.987378
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/6-31+G**
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 3329 3126 7.93      
2 A1 3274 3075 8.16      
3 A1 3113 2924 34.40      
4 A1 1560 1465 0.09      
5 A1 1538 1444 4.39      
6 A1 1328 1247 0.42      
7 A1 1149 1079 4.22      
8 A1 1073 1008 0.01      
9 A1 945 888 3.08      
10 A1 829 778 0.16      
11 A2 3140 2950 0.00      
12 A2 1244 1169 0.00      
13 A2 1024 961 0.00      
14 A2 635 596 0.00      
15 A2 15i 14i 0.00      
16 B1 3159 2967 32.07      
17 B1 1163 1092 5.45      
18 B1 986 926 7.08      
19 B1 834 783 4.42      
20 B1 625 587 82.40      
21 B1 421 396 10.73      
22 B2 3317 3116 6.14      
23 B2 3101 2913 31.50      
24 B2 1513 1421 1.05      
25 B2 1431 1344 7.03      
26 B2 1346 1264 0.03      
27 B2 1329 1249 6.71      
28 B2 1094 1028 0.35      
29 B2 931 874 18.82      
30 B2 733 689 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 23073.8 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 21670.9 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/6-31+G**
ABC
0.26395 0.25636 0.13655

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.262
C2 0.000 1.140 0.504
C3 0.000 -1.140 0.504
C4 0.000 0.770 -0.961
C5 0.000 -0.770 -0.961
H6 0.000 0.000 2.344
H7 0.000 2.195 0.728
H8 0.000 -2.195 0.728
H9 0.875 1.180 -1.472
H10 -0.875 1.180 -1.472
H11 0.875 -1.180 -1.472
H12 -0.875 -1.180 -1.472

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.36931.36932.35322.35321.08202.25902.25903.10363.10363.10363.1036
C21.36932.28081.51162.40802.16481.07803.34292.16122.16123.17103.1710
C31.36932.28082.40801.51162.16483.34291.07803.17103.17102.16122.1612
C42.35321.51162.40801.54053.39412.20993.41271.09271.09272.19782.1978
C52.35322.40801.51161.54053.39413.41272.20992.19782.19781.09271.0927
H61.08202.16482.16483.39413.39412.72582.72584.08894.08894.08894.0889
H72.25901.07803.34292.20993.41272.72584.38992.57552.57554.12264.1226
H82.25903.34291.07803.41272.20992.72584.38994.12264.12262.57552.5755
H93.10362.16123.17101.09272.19784.08892.57554.12261.74982.36062.9384
H103.10362.16123.17101.09272.19784.08892.57554.12261.74982.93842.3606
H113.10363.17102.16122.19781.09274.08894.12262.57552.36062.93841.7498
H123.10363.17102.16122.19781.09274.08894.12262.57552.93842.36061.7498

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 109.435 C1 C2 H7 134.408
C1 C3 C5 109.435 C1 C3 H8 134.408
C2 C1 C3 112.780 C2 C1 H6 123.610
C2 C4 C5 104.175 C2 C4 H9 111.156
C2 C4 H10 111.156 C3 C1 H6 123.610
C3 C5 C4 104.175 C3 C5 H11 111.156
C3 C5 H12 111.156 C4 C2 H7 116.156
C4 C5 H11 112.039 C4 C5 H12 112.039
C5 C3 H8 116.156 C5 C4 H9 112.039
C5 C4 H10 112.039 H9 C4 H10 106.391
H11 C5 H12 106.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability