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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-194.172136
Energy at 298.15K-194.179293
HF Energy-193.414546
Nuclear repulsion energy162.876661
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 MP4/6-311G**
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 3240 3142        
2 A1 3186 3090        
3 A1 3034 2942        
4 A1 1516 1471        
5 A1 1505 1460        
6 A1 1298 1259        
7 A1 1116 1082        
8 A1 1049 1017        
9 A1 924 896        
10 A1 813 788        
11 A2 3051 2958        
12 A2 1234 1196        
13 A2 1003 972        
14 A2 611 593        
15 A2 71 69        
16 B1 3071 2978        
17 B1 1153 1118        
18 B1 961 932        
19 B1 817 792        
20 B1 612 594        
21 B1 417 404        
22 B2 3228 3130        
23 B2 3022 2930        
24 B2 1483 1438        
25 B2 1394 1352        
26 B2 1309 1269        
27 B2 1296 1256        
28 B2 1065 1033        
29 B2 910 882        
30 B2 718 696        

Unscaled Zero Point Vibrational Energy (zpe) 22552.9 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 21869.5 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 MP4/6-311G**
ABC
0.26029 0.25297 0.13473

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.270
C2 0.000 1.148 0.509
C3 0.000 -1.148 0.509
C4 0.000 0.776 -0.968
C5 0.000 -0.776 -0.968
H6 0.000 0.000 2.359
H7 0.000 2.211 0.730
H8 0.000 -2.211 0.730
H9 0.882 1.187 -1.481
H10 -0.882 1.187 -1.481
H11 0.882 -1.187 -1.481
H12 -0.882 -1.187 -1.481

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37771.37772.36842.36841.08932.27602.27603.12293.12293.12293.1229
C21.37772.29671.52302.42542.17781.08543.36662.17642.17643.19243.1924
C31.37772.29672.42541.52302.17783.36661.08543.19243.19242.17642.1764
C42.36841.52302.42541.55123.41642.22323.43541.10041.10042.21242.2124
C52.36842.42541.52301.55123.41643.43542.22322.21242.21241.10041.1004
H61.08932.17782.17783.41643.41642.74652.74654.11474.11474.11474.1147
H72.27601.08543.36662.22323.43542.74654.42202.59062.59064.14884.1488
H82.27603.36661.08543.43542.22322.74654.42204.14884.14882.59062.5906
H93.12292.17643.19241.10042.21244.11472.59064.14881.76492.37492.9589
H103.12292.17643.19241.10042.21244.11472.59064.14881.76492.95892.3749
H113.12293.19242.17642.21241.10044.11474.14882.59062.37492.95891.7649
H123.12293.19242.17642.21241.10044.11474.14882.59062.95892.37491.7649

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 109.368 C1 C2 H7 134.713
C1 C3 C5 109.368 C1 C3 H8 134.713
C2 C1 C3 112.930 C2 C1 H6 123.535
C2 C4 C5 104.167 C2 C4 H9 111.094
C2 C4 H10 111.094 C3 C1 H6 123.535
C3 C5 C4 104.167 C3 C5 H11 111.094
C3 C5 H12 111.094 C4 C2 H7 115.919
C4 C5 H11 111.977 C4 C5 H12 111.977
C5 C3 H8 115.919 C5 C4 H9 111.977
C5 C4 H10 111.977 H9 C4 H10 106.632
H11 C5 H12 106.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability