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All results from a given calculation for C5H6 (1,3-Cyclopentadiene)

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-194.090713
Energy at 298.15K-194.096947
HF Energy-194.090713
Nuclear repulsion energy157.150661
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 mPW1PW91/6-311G*
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 3253 3104 3.42      
2 A1 3227 3080 17.35      
3 A1 3047 2908 10.89      
4 A1 1582 1510 1.62      
5 A1 1431 1366 5.68      
6 A1 1415 1350 22.27      
7 A1 1139 1087 0.29      
8 A1 1033 986 0.09      
9 A1 945 902 12.65      
10 A1 820 783 0.01      
11 A2 1141 1089 0.00      
12 A2 953 910 0.00      
13 A2 713 680 0.00      
14 A2 524 500 0.00      
15 B1 3075 2934 9.98      
16 B1 952 909 0.02      
17 B1 920 878 31.03      
18 B1 684 653 84.51      
19 B1 343 327 10.52      
20 B2 3246 3098 28.11      
21 B2 3216 3070 3.47      
22 B2 1666 1590 0.30      
23 B2 1333 1272 1.78      
24 B2 1282 1223 1.90      
25 B2 1119 1068 2.99      
26 B2 988 943 15.41      
27 B2 821 784 6.72      

Unscaled Zero Point Vibrational Energy (zpe) 20433.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19501.7 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 mPW1PW91/6-311G*
ABC
0.28443 0.27660 0.14393

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.875 0.000 1.872
H2 -0.875 0.000 1.872
H3 0.000 2.206 0.608
H4 0.000 -2.206 0.608
H5 0.000 1.346 -1.878
H6 0.000 -1.346 -1.878
C7 0.000 1.174 0.282
C8 0.000 -1.174 0.282
C9 0.000 0.000 1.210
C10 0.000 0.732 -0.987
C11 0.000 -0.732 -0.987

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75002.68832.68834.07984.07982.16212.16211.09763.07803.0780
H21.75002.68832.68834.07984.07982.16212.16211.09763.07803.0780
H32.68832.68834.41112.63104.33591.08183.39562.28602.17193.3424
H42.68832.68834.41114.33592.63103.39561.08182.28603.34242.1719
H54.07984.07982.63104.33592.69272.16673.31943.36861.08302.2612
H64.07984.07984.33592.63102.69273.31942.16673.36862.26121.0830
C72.16212.16211.08183.39562.16673.31942.34861.49671.34332.2894
C82.16212.16213.39561.08183.31942.16672.34861.49672.28941.3433
C91.09761.09762.28602.28603.36863.36861.49671.49672.31492.3149
C103.07803.07802.17193.34241.08302.26121.34332.28942.31491.4633
C113.07803.07803.34242.17192.26121.08302.28941.34332.31491.4633

picture of 1,3-Cyclopentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H2 105.724 H1 C9 C7 111.982
H1 C9 C8 111.982 H2 C9 C7 111.982
H2 C9 C8 111.982 H3 C7 C9 124.094
H3 C7 C10 126.830 H4 C8 C9 124.094
H4 C8 C11 126.830 H5 C10 C7 126.174
H5 C10 C11 124.585 H6 C11 C8 126.174
H6 C11 C10 124.585 C7 C9 C8 103.366
C7 C10 C11 109.241 C8 C11 C10 109.241
C9 C7 C10 109.076 C9 C8 C11 109.076
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.247      
2 H 0.247      
3 H 0.202      
4 H 0.202      
5 H 0.199      
6 H 0.199      
7 C -0.209      
8 C -0.209      
9 C -0.483      
10 C -0.199      
11 C -0.199      


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 0.471 0.471
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.304 0.000 0.000
y 0.000 8.302 0.000
z 0.000 0.000 9.198


<r2> (average value of r2) Å2
<r2> 92.390
(<r2>)1/2 9.612