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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-194.621789
Energy at 298.15K-194.630411
HF Energy-193.929396
Nuclear repulsion energy169.405619
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/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 3172 3021 0.00      
2 A1 1492 1421 0.00      
3 A1 1097 1045 0.00      
4 A1 1057 1007 0.00      
5 A1 612 583 0.00      
6 A2 3268 3113 0.00      
7 A2 1169 1114 0.00      
8 A2 831 792 0.00      
9 B1 3267 3112 0.00      
10 B1 1179 1123 0.00      
11 B1 1023 974 0.00      
12 B1 292 278 0.00      
13 B2 3174 3023 23.75      
14 B2 1624 1547 2.00      
15 B2 1434 1366 0.01      
16 B2 1012 964 12.59      
17 B2 926 882 17.02      
18 E 3280 3124 13.11      
18 E 3280 3124 13.11      
19 E 3168 3018 14.96      
19 E 3168 3018 14.96      
20 E 1454 1385 0.89      
20 E 1454 1385 0.89      
21 E 1189 1133 1.58      
21 E 1189 1133 1.58      
22 E 1066 1015 1.31      
22 E 1066 1015 1.31      
23 E 910 867 4.84      
23 E 910 867 4.84      
24 E 788 751 0.24      
24 E 788 751 0.24      
25 E 298 284 0.21      
25 E 298 284 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 25466.7 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 24257.0 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/cc-pVDZ
ABC
0.34904 0.13778 0.13778

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.769 1.276
C3 0.000 -0.769 1.276
C4 -0.769 0.000 -1.276
C5 0.769 0.000 -1.276
H6 0.925 1.270 1.578
H7 -0.925 1.270 1.578
H8 -0.925 -1.270 1.578
H9 0.925 -1.270 1.578
H10 -1.270 -0.925 -1.578
H11 -1.270 0.925 -1.578
H12 1.270 0.925 -1.578
H13 1.270 -0.925 -1.578

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48971.48971.48971.48972.22692.22692.22692.22692.22692.22692.22692.2269
C21.48971.53792.77382.77381.09471.09472.25972.25973.55343.12753.12753.5534
C31.48971.53792.77382.77382.25972.25971.09471.09473.12753.55343.55343.1275
C41.48972.77382.77381.53793.55343.12753.12753.55341.09471.09472.25972.2597
C51.48972.77382.77381.53793.12753.55343.55343.12752.25972.25971.09471.0947
H62.22691.09472.25973.55343.12751.85043.14322.54084.42693.85953.19293.8595
H72.22691.09472.25973.12753.55341.85042.54083.14323.85953.19293.85954.4269
H82.22692.25971.09473.12753.55343.14322.54081.85043.19293.85954.42693.8595
H92.22692.25971.09473.55343.12752.54083.14321.85043.85954.42693.85953.1929
H102.22693.55343.12751.09472.25974.42693.85953.19293.85951.85043.14322.5408
H112.22693.12753.55341.09472.25973.85953.19293.85954.42691.85042.54083.1432
H122.22693.12753.55342.25971.09473.19293.85954.42693.85953.14322.54081.8504
H132.22693.55343.12752.25971.09473.85954.42693.85953.19292.54083.14321.8504

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 58.923 C1 C2 H6 118.199
C1 C2 H7 118.199 C1 C3 C2 58.923
C1 C3 H8 118.199 C1 C3 H9 118.199
C1 C4 C5 58.923 C1 C4 H10 118.199
C1 C4 H11 118.199 C1 C5 C4 58.923
C1 C5 H12 118.199 C1 C5 H13 118.199
C2 C1 C3 62.154 C2 C1 C4 137.184
C2 C1 C5 137.184 C2 C3 H8 117.261
C2 C3 H9 117.261 C3 C1 C4 137.184
C3 C1 C5 137.184 C3 C2 H6 117.261
C3 C2 H7 117.261 C4 C1 C5 62.154
C4 C5 H12 117.261 C4 C5 H13 117.261
C5 C4 H10 117.261 C5 C4 H11 117.261
H6 C2 H7 115.368 H8 C3 H9 115.368
H10 C4 H11 115.368 H12 C5 H13 115.368
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability