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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-195.009057
Energy at 298.15K-195.017492
Nuclear repulsion energy169.140424
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 PBEPBE/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 3048 3030 0.00      
2 A1 1415 1407 0.00      
3 A1 1066 1060 0.00      
4 A1 1007 1001 0.00      
5 A1 600 597 0.00      
6 A2 3132 3113 0.00      
7 A2 1118 1111 0.00      
8 A2 791 786 0.00      
9 B1 3130 3112 0.00      
10 B1 1127 1121 0.00      
11 B1 975 969 0.00      
12 B1 280 278 0.00      
13 B2 3047 3030 35.28      
14 B2 1554 1545 0.41      
15 B2 1365 1357 0.14      
16 B2 960 954 10.02      
17 B2 900 895 14.73      
18 E 3144 3126 18.82      
18 E 3144 3126 18.82      
19 E 3044 3027 22.11      
19 E 3044 3027 22.11      
20 E 1380 1372 1.03      
20 E 1380 1372 1.03      
21 E 1134 1128 1.94      
21 E 1134 1128 1.94      
22 E 1015 1009 1.33      
22 E 1015 1009 1.33      
23 E 871 866 3.53      
23 E 871 866 3.53      
24 E 758 753 0.49      
24 E 758 753 0.49      
25 E 291 289 0.19      
25 E 291 289 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 24393.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 24252.4 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 PBEPBE/cc-pVDZ
ABC
0.34856 0.13738 0.13738

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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 0.768 1.277
C3 0.000 -0.768 1.277
C4 -0.768 0.000 -1.277
C5 0.768 0.000 -1.277
H6 0.927 1.277 1.583
H7 -0.927 1.277 1.583
H8 -0.927 -1.277 1.583
H9 0.927 -1.277 1.583
H10 -1.277 -0.927 -1.583
H11 -1.277 0.927 -1.583
H12 1.277 0.927 -1.583
H13 1.277 -0.927 -1.583

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.49021.49021.49021.49022.23542.23542.23542.23542.23542.23542.23542.2354
C21.49021.53502.77582.77581.10141.10142.26592.26593.56163.13663.13663.5616
C31.49021.53502.77582.77582.26592.26591.10141.10143.13663.56163.56163.1366
C41.49022.77582.77581.53503.56163.13663.13663.56161.10141.10142.26592.2659
C51.49022.77582.77581.53503.13663.56163.56163.13662.26592.26591.10141.1014
H62.23541.10142.26593.56163.13661.85473.15682.55454.44333.87363.20423.8736
H72.23541.10142.26593.13663.56161.85472.55453.15683.87363.20423.87364.4433
H82.23542.26591.10143.13663.56163.15682.55451.85473.20423.87364.44333.8736
H92.23542.26591.10143.56163.13662.55453.15681.85473.87364.44333.87363.2042
H102.23543.56163.13661.10142.26594.44333.87363.20423.87361.85473.15682.5545
H112.23543.13663.56161.10142.26593.87363.20423.87364.44331.85472.55453.1568
H122.23543.13663.56162.26591.10143.20423.87364.44333.87363.15682.55451.8547
H132.23543.56163.13662.26591.10143.87364.44333.87363.20422.55453.15681.8547

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 59.000 C1 C2 H6 118.431
C1 C2 H7 118.431 C1 C3 C2 59.000
C1 C3 H8 118.431 C1 C3 H9 118.431
C1 C4 C5 59.000 C1 C4 H10 118.431
C1 C4 H11 118.431 C1 C5 C4 59.000
C1 C5 H12 118.431 C1 C5 H13 118.431
C2 C1 C3 61.999 C2 C1 C4 137.285
C2 C1 C5 137.285 C2 C3 H8 117.568
C2 C3 H9 117.568 C3 C1 C4 137.285
C3 C1 C5 137.285 C3 C2 H6 117.568
C3 C2 H7 117.568 C4 C1 C5 61.999
C4 C5 H12 117.568 C4 C5 H13 117.568
C5 C4 H10 117.568 C5 C4 H11 117.568
H6 C2 H7 114.694 H8 C3 H9 114.694
H10 C4 H11 114.694 H12 C5 H13 114.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.160      
2 C -0.026      
3 C -0.026      
4 C -0.026      
5 C -0.026      
6 H 0.033      
7 H 0.033      
8 H 0.033      
9 H 0.033      
10 H 0.033      
11 H 0.033      
12 H 0.033      
13 H 0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.832 0.000 0.000
y 0.000 -30.832 0.000
z 0.000 0.000 -32.739
Traceless
 xyz
x 0.954 0.000 0.000
y 0.000 0.954 0.000
z 0.000 0.000 -1.907
Polar
3z2-r2-3.815
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.468 0.000 0.000
y 0.000 7.468 0.000
z 0.000 0.000 8.852


<r2> (average value of r2) Å2
<r2> 112.929
(<r2>)1/2 10.627