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

using model chemistry: MP2=FULL/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-194.068721
Energy at 298.15K-194.075896
HF Energy-193.391333
Nuclear repulsion energy162.909453
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/aug-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 3285 3184 7.75      
2 A1 3230 3131 7.00      
3 A1 3063 2969 36.65      
4 A1 1528 1481 0.30      
5 A1 1482 1436 4.77      
6 A1 1281 1241 0.52      
7 A1 1120 1085 3.58      
8 A1 1054 1022 0.04      
9 A1 932 904 2.77      
10 A1 816 790 0.14      
11 A2 3088 2993 0.00      
12 A2 1227 1189 0.00      
13 A2 987 957 0.00      
14 A2 632 613 0.00      
15 A2 63 61 0.00      
16 B1 3109 3013 31.04      
17 B1 1142 1107 5.09      
18 B1 979 949 6.70      
19 B1 808 783 5.36      
20 B1 619 600 68.19      
21 B1 427 414 7.95      
22 B2 3273 3173 4.43      
23 B2 3050 2956 29.10      
24 B2 1457 1412 1.43      
25 B2 1390 1347 4.01      
26 B2 1308 1268 0.88      
27 B2 1282 1243 5.74      
28 B2 1064 1032 0.47      
29 B2 912 884 20.32      
30 B2 721 699 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 22664.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 21966.7 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/aug-cc-pVDZ
ABC
0.26030 0.25348 0.13489

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.269
C2 0.000 1.148 0.507
C3 0.000 -1.148 0.507
C4 0.000 0.775 -0.966
C5 0.000 -0.775 -0.966
H6 0.000 0.000 2.362
H7 0.000 2.214 0.729
H8 0.000 -2.214 0.729
H9 0.883 1.190 -1.480
H10 -0.883 1.190 -1.480
H11 0.883 -1.190 -1.480
H12 -0.883 -1.190 -1.480

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.37751.37752.36532.36531.09322.27922.27923.12293.12293.12293.1229
C21.37752.29591.52012.42222.18111.08933.36962.17532.17533.19323.1932
C31.37752.29592.42221.52012.18113.36961.08933.19323.19322.17532.1753
C42.36531.52012.42221.54903.41712.22423.43621.10331.10332.21462.2146
C52.36532.42221.52011.54903.41713.43622.22422.21462.21461.10331.1033
H61.09322.18112.18113.41713.41712.75132.75134.11804.11804.11804.1180
H72.27921.08933.36962.22423.43622.75134.42882.59032.59034.15354.1535
H82.27923.36961.08933.43622.22422.75134.42884.15354.15352.59032.5903
H93.12292.17533.19321.10332.21464.11802.59034.15351.76692.38032.9644
H103.12292.17533.19321.10332.21464.11802.59034.15351.76692.96442.3803
H113.12293.19322.17532.21461.10334.11804.15352.59032.38032.96441.7669
H123.12293.19322.17532.21461.10334.11804.15352.59032.96442.38031.7669

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 109.335 C1 C2 H7 134.702
C1 C3 C5 109.335 C1 C3 H8 134.702
C2 C1 C3 112.890 C2 C1 H6 123.555
C2 C4 C5 104.220 C2 C4 H9 111.032
C2 C4 H10 111.032 C3 C1 H6 123.555
C3 C5 C4 104.220 C3 C5 H11 111.032
C3 C5 H12 111.032 C4 C2 H7 115.963
C4 C5 H11 112.131 C4 C5 H12 112.131
C5 C3 H8 115.963 C5 C4 H9 112.131
C5 C4 H10 112.131 H9 C4 H10 106.403
H11 C5 H12 106.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability