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All results from a given calculation for C5H8 (Spiropentane)

using model chemistry: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-195.252317
Energy at 298.15K-195.260974
Nuclear repulsion energy170.453587
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 mPW1PW91/aug-cc-pVDZ
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 3148 3017 0.00      
2 A1 1487 1425 0.00      
3 A1 1098 1052 0.00      
4 A1 1050 1006 0.00      
5 A1 618 593 0.00      
6 A2 3232 3097 0.00      
7 A2 1164 1115 0.00      
8 A2 829 795 0.00      
9 B1 3230 3095 0.00      
10 B1 1173 1124 0.00      
11 B1 1017 975 0.00      
12 B1 293 280 0.00      
13 B2 3148 3017 37.70      
14 B2 1614 1547 0.62      
15 B2 1430 1370 0.00      
16 B2 1002 960 11.98      
17 B2 930 891 22.83      
18 E 3244 3109 21.01      
18 E 3244 3109 21.01      
19 E 3144 3013 26.47      
19 E 3144 3013 26.47      
20 E 1452 1391 2.06      
20 E 1452 1391 2.06      
21 E 1182 1133 1.69      
21 E 1182 1133 1.69      
22 E 1061 1017 1.07      
22 E 1061 1017 1.07      
23 E 901 863 6.13      
23 E 901 863 6.13      
24 E 786 753 0.56      
24 E 786 753 0.56      
25 E 312 299 0.19      
25 E 312 299 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 25312.2 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 24256.7 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 mPW1PW91/aug-cc-pVDZ
ABC
0.35369 0.13944 0.13944

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-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 0.763 1.268
C3 0.000 -0.763 1.268
C4 -0.763 0.000 -1.268
C5 0.763 0.000 -1.268
H6 0.918 1.266 1.571
H7 -0.918 1.266 1.571
H8 -0.918 -1.266 1.571
H9 0.918 -1.266 1.571
H10 -1.266 -0.918 -1.571
H11 -1.266 0.918 -1.571
H12 1.266 0.918 -1.571
H13 1.266 -0.918 -1.571

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47991.47991.47991.47992.21622.21622.21622.21622.21622.21622.21622.2162
C21.47991.52612.75602.75601.08931.08932.24742.24743.53343.11193.11193.5334
C31.47991.52612.75602.75602.24742.24741.08931.08933.11193.53343.53343.1119
C41.47992.75602.75601.52613.53343.11193.11193.53341.08931.08932.24742.2474
C51.47992.75602.75601.52613.11193.53343.53343.11192.24742.24741.08931.0893
H62.21621.08932.24743.53343.11191.83513.12732.53224.40493.84143.17963.8414
H72.21621.08932.24743.11193.53341.83512.53223.12733.84143.17963.84144.4049
H82.21622.24741.08933.11193.53343.12732.53221.83513.17963.84144.40493.8414
H92.21622.24741.08933.53343.11192.53223.12731.83513.84144.40493.84143.1796
H102.21623.53343.11191.08932.24744.40493.84143.17963.84141.83513.12732.5322
H112.21623.11193.53341.08932.24743.84143.17963.84144.40491.83512.53223.1273
H122.21623.11193.53342.24741.08933.17963.84144.40493.84143.12732.53221.8351
H132.21623.53343.11192.24741.08933.84144.40493.84143.17962.53223.12731.8351

picture of Spiropentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 58.961 C1 C2 H6 118.432
C1 C2 H7 118.432 C1 C3 C2 58.961
C1 C3 H8 118.432 C1 C3 H9 118.432
C1 C4 C5 58.961 C1 C4 H10 118.432
C1 C4 H11 118.432 C1 C5 C4 58.961
C1 C5 H12 118.432 C1 C5 H13 118.432
C2 C1 C3 62.079 C2 C1 C4 137.234
C2 C1 C5 137.234 C2 C3 H8 117.504
C2 C3 H9 117.504 C3 C1 C4 137.234
C3 C1 C5 137.234 C3 C2 H6 117.504
C3 C2 H7 117.504 C4 C1 C5 62.079
C4 C5 H12 117.504 C4 C5 H13 117.504
C5 C4 H10 117.504 C5 C4 H11 117.504
H6 C2 H7 114.781 H8 C3 H9 114.781
H10 C4 H11 114.781 H12 C5 H13 114.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.763      
2 C 0.624      
3 C 0.624      
4 C 0.624      
5 C 0.624      
6 H -0.407      
7 H -0.407      
8 H -0.407      
9 H -0.407      
10 H -0.407      
11 H -0.407      
12 H -0.407      
13 H -0.407      


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 -30.814 0.000 0.000
y 0.000 -30.814 0.000
z 0.000 0.000 -32.931
Traceless
 xyz
x 1.058 0.000 0.000
y 0.000 1.058 0.000
z 0.000 0.000 -2.116
Polar
3z2-r2-4.233
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 8.063 0.000 0.000
y 0.000 8.063 0.000
z 0.000 0.000 9.888


<r2> (average value of r2) Å2
<r2> 111.541
(<r2>)1/2 10.561