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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-194.632403
Energy at 298.15K-194.641073
HF Energy-193.948182
Nuclear repulsion energy170.260567
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 MP2/6-311G*
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 3161 3004 0.00      
2 A1 1526 1450 0.00      
3 A1 1102 1047 0.00      
4 A1 1072 1019 0.00      
5 A1 613 582 0.00      
6 A2 3250 3088 0.00      
7 A2 1191 1132 0.00      
8 A2 858 815 0.00      
9 B1 3249 3087 0.00      
10 B1 1202 1142 0.00      
11 B1 1044 992 0.00      
12 B1 299 284 0.00      
13 B2 3163 3006 27.15      
14 B2 1626 1545 1.31      
15 B2 1465 1392 0.37      
16 B2 1032 980 22.05      
17 B2 926 880 18.96      
18 E 3262 3099 18.78      
18 E 3262 3099 18.78      
19 E 3158 3001 18.99      
19 E 3158 3001 18.99      
20 E 1491 1417 2.16      
20 E 1491 1417 2.16      
21 E 1205 1145 1.72      
21 E 1205 1145 1.72      
22 E 1078 1024 2.90      
22 E 1078 1024 2.90      
23 E 913 868 5.64      
23 E 913 868 5.64      
24 E 803 763 0.45      
24 E 803 763 0.45      
25 E 304 289 0.39      
25 E 304 289 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 25600.4 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 24328.1 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 MP2/6-311G*
ABC
0.35269 0.13899 0.13899

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.764 1.270
C3 0.000 -0.764 1.270
C4 -0.764 0.000 -1.270
C5 0.764 0.000 -1.270
H6 0.915 1.267 1.572
H7 -0.915 1.267 1.572
H8 -0.915 -1.267 1.572
H9 0.915 -1.267 1.572
H10 -1.267 -0.915 -1.572
H11 -1.267 0.915 -1.572
H12 1.267 0.915 -1.572
H13 1.267 -0.915 -1.572

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48221.48221.48221.48222.21602.21602.21602.21602.21602.21602.21602.2160
C21.48221.52842.76032.76031.08631.08632.24762.24763.53513.11473.11473.5351
C31.48221.52842.76032.76032.24762.24761.08631.08633.11473.53513.53513.1147
C41.48222.76032.76031.52843.53513.11473.11473.53511.08631.08632.24762.2476
C51.48222.76032.76031.52843.11473.53513.53513.11472.24762.24761.08631.0863
H62.21601.08632.24763.53513.11471.82943.12472.53324.40403.84203.18223.8420
H72.21601.08632.24763.11473.53511.82942.53323.12473.84203.18223.84204.4040
H82.21602.24761.08633.11473.53513.12472.53321.82943.18223.84204.40403.8420
H92.21602.24761.08633.53513.11472.53323.12471.82943.84204.40403.84203.1822
H102.21603.53513.11471.08632.24764.40403.84203.18223.84201.82943.12472.5332
H112.21603.11473.53511.08632.24763.84203.18223.84204.40401.82942.53323.1247
H122.21603.11473.53512.24761.08633.18223.84204.40403.84203.12472.53321.8294
H132.21603.53513.11472.24761.08633.84204.40403.84203.18222.53323.12471.8294

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 58.962 C1 C2 H6 118.445
C1 C2 H7 118.445 C1 C3 C2 58.962
C1 C3 H8 118.445 C1 C3 H9 118.445
C1 C4 C5 58.962 C1 C4 H10 118.445
C1 C4 H11 118.445 C1 C5 C4 58.962
C1 C5 H12 118.445 C1 C5 H13 118.445
C2 C1 C3 62.076 C2 C1 C4 137.236
C2 C1 C5 137.236 C2 C3 H8 117.547
C2 C3 H9 117.547 C3 C1 C4 137.236
C3 C1 C5 137.236 C3 C2 H6 117.547
C3 C2 H7 117.547 C4 C1 C5 62.076
C4 C5 H12 117.547 C4 C5 H13 117.547
C5 C4 H10 117.547 C5 C4 H11 117.547
H6 C2 H7 114.715 H8 C3 H9 114.715
H10 C4 H11 114.715 H12 C5 H13 114.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability