return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C7H7 (cycloheptatrienyl radical)

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 2A2
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-269.980111
Energy at 298.15K 
HF Energy-269.098554
Nuclear repulsion energy258.813341
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 CCD/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 3228 3055 9.67      
2 A1 3211 3039 39.87      
3 A1 3184 3014 2.76      
4 A1 3180 3010 5.90      
5 A1 1816 1718 20.82      
6 A1 1598 1512 10.58      
7 A1 1524 1442 4.85      
8 A1 1340 1268 2.27      
9 A1 1223 1157 1.14      
10 A1 1019 965 3.00      
11 A1 941 891 2.23      
12 A1 862 816 0.44      
13 A1 459 434 0.44      
14 A2 1050 994 0.00      
15 A2 904 856 0.00      
16 A2 751 711 0.00      
17 A2 608 575 0.00      
18 A2 138 131 0.00      
19 B1 1078 1020 0.33      
20 B1 1014 960 0.28      
21 B1 803 760 9.78      
22 B1 662 627 65.36      
23 B1 507 480 36.28      
24 B1 307 290 0.30      
25 B2 3220 3048 35.68      
26 B2 3197 3026 31.78      
27 B2 3177 3007 0.08      
28 B2 1774 1679 11.45      
29 B2 1529 1447 8.16      
30 B2 1454 1376 0.02      
31 B2 1347 1275 0.58      
32 B2 1310 1240 0.37      
33 B2 994 941 1.39      
34 B2 923 874 2.93      
35 B2 427 404 0.56      
36 B2 1755i 1661i 60.46      

Unscaled Zero Point Vibrational Energy (zpe) 24499.9 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 23189.2 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 CCD/6-31G*
ABC
0.12567 0.12422 0.06247

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.611
C2 0.000 1.254 1.027
C3 0.000 -1.254 1.027
C4 0.000 1.558 -0.392
C5 0.000 -1.558 -0.392
C6 0.000 0.721 -1.440
C7 0.000 -0.721 -1.440
H8 0.000 0.000 2.702
H9 0.000 2.112 1.696
H10 0.000 -2.112 1.696
H11 0.000 2.624 -0.624
H12 0.000 -2.624 -0.624
H13 0.000 1.182 -2.428
H14 0.000 -1.182 -2.428

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12 H13 H14
C11.38331.38332.53742.53743.13463.13461.09152.11342.11343.44653.44654.20784.2078
C21.38332.50811.45143.14962.52353.16012.09271.08783.43162.14524.21463.45544.2270
C31.38332.50813.14961.45143.16012.52352.09273.43161.08784.21462.14524.22703.4554
C42.53741.45143.14963.11531.34032.50813.46452.16064.22201.09094.18772.06993.4127
C52.53743.14961.45143.11532.50811.34033.46454.22202.16064.18771.09093.41272.0699
C63.13462.52353.16011.34032.50811.44264.20433.43014.22592.06973.44291.09012.1442
C73.13463.16012.52352.50811.34031.44264.20434.22593.43013.44292.06972.14421.0901
H81.09152.09272.09273.46453.46454.20434.20432.33922.33924.23664.23665.26445.2644
H92.11341.08783.43162.16064.22203.43014.22592.33924.22352.37605.27324.22735.2775
H102.11343.43161.08784.22202.16064.22593.43012.33924.22355.27322.37605.27754.2273
H113.44652.14524.21461.09094.18772.06973.44294.23662.37605.27325.24722.30914.2110
H123.44654.21462.14524.18771.09093.44292.06974.23665.27322.37605.24724.21102.3091
H134.20783.45544.22702.06993.41271.09012.14425.26444.22735.27752.30914.21102.3633
H144.20784.22703.45543.41272.06992.14421.09015.26445.27754.22734.21102.30912.3633

picture of cycloheptatrienyl radical state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability