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All results from a given calculation for C5H8 (Spiropentane)

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 D2D 1A1
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-194.655235
Energy at 298.15K-194.663995
HF Energy-193.931289
Nuclear repulsion energy171.042044
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
(Å4/u)
Dep P Dep U
1 A1 3222 3010 0.00      
2 A1 1557 1455 0.00      
3 A1 1133 1059 0.00      
4 A1 1098 1026 0.00      
5 A1 629 588 0.00      
6 A2 3313 3095 0.00      
7 A2 1212 1133 0.00      
8 A2 867 810 0.00      
9 B1 3312 3095 0.00      
10 B1 1221 1141 0.00      
11 B1 1062 992 0.00      
12 B1 303 283 0.00      
13 B2 3223 3012 26.71      
14 B2 1656 1547 3.06      
15 B2 1492 1394 0.13      
16 B2 1063 993 9.58      
17 B2 949 887 17.91      
18 E 3323 3105 17.33      
18 E 3323 3105 17.33      
19 E 3218 3007 16.77      
19 E 3218 3007 16.77      
20 E 1522 1422 0.16      
20 E 1522 1422 0.16      
21 E 1228 1148 1.80      
21 E 1228 1148 1.80      
22 E 1111 1038 1.79      
22 E 1111 1038 1.79      
23 E 933 871 4.82      
23 E 933 871 4.82      
24 E 814 761 0.13      
24 E 814 761 0.13      
25 E 314 294 0.27      
25 E 314 294 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 26118.6 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 24405.2 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 MP2=FULL/6-31G**
ABC
0.35618 0.14020 0.14020

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.761 1.265
C3 0.000 -0.761 1.265
C4 -0.761 0.000 -1.265
C5 0.761 0.000 -1.265
H6 0.911 1.261 1.565
H7 -0.911 1.261 1.565
H8 -0.911 -1.261 1.565
H9 0.911 -1.261 1.565
H10 -1.261 -0.911 -1.565
H11 -1.261 0.911 -1.565
H12 1.261 0.911 -1.565
H13 1.261 -0.911 -1.565

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47661.47661.47661.47662.20622.20622.20622.20622.20622.20622.20622.2062
C21.47661.52292.74992.74991.08091.08092.23782.23783.52063.10173.10173.5206
C31.47661.52292.74992.74992.23782.23781.08091.08093.10173.52063.52063.1017
C41.47662.74992.74991.52293.52063.10173.10173.52061.08091.08092.23782.2378
C51.47662.74992.74991.52293.10173.52063.52063.10172.23782.23781.08091.0809
H62.20621.08092.23783.52063.10171.82143.11022.52114.38463.82533.16883.8253
H72.20621.08092.23783.10173.52061.82142.52113.11023.82533.16883.82534.3846
H82.20622.23781.08093.10173.52063.11022.52111.82143.16883.82534.38463.8253
H92.20622.23781.08093.52063.10172.52113.11021.82143.82534.38463.82533.1688
H102.20623.52063.10171.08092.23784.38463.82533.16883.82531.82143.11022.5211
H112.20623.10173.52061.08092.23783.82533.16883.82534.38461.82142.52113.1102
H122.20623.10173.52062.23781.08093.16883.82534.38463.82533.11022.52111.8214
H132.20623.52063.10172.23781.08093.82534.38463.82533.16882.52113.11021.8214

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 58.958 C1 C2 H6 118.410
C1 C2 H7 118.410 C1 C3 C2 58.958
C1 C3 H8 118.410 C1 C3 H9 118.410
C1 C4 C5 58.958 C1 C4 H10 118.410
C1 C4 H11 118.410 C1 C5 C4 58.958
C1 C5 H12 118.410 C1 C5 H13 118.410
C2 C1 C3 62.085 C2 C1 C4 137.230
C2 C1 C5 137.230 C2 C3 H8 117.500
C2 C3 H9 117.500 C3 C1 C4 137.230
C3 C1 C5 137.230 C3 C2 H6 117.500
C3 C2 H7 117.500 C4 C1 C5 62.085
C4 C5 H12 117.500 C4 C5 H13 117.500
C5 C4 H10 117.500 C5 C4 H11 117.500
H6 C2 H7 114.814 H8 C3 H9 114.814
H10 C4 H11 114.814 H12 C5 H13 114.814
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability