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

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-192.852829
Energy at 298.15K-192.859353
HF Energy-192.852829
Nuclear repulsion energy157.594308
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 HF/TZVP
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 3379 3070 3.73      
2 A1 3353 3047 11.64      
3 A1 3164 2875 20.34      
4 A1 1710 1553 1.86      
5 A1 1556 1414 5.24      
6 A1 1517 1378 15.51      
7 A1 1223 1111 0.29      
8 A1 1055 958 0.55      
9 A1 973 884 8.08      
10 A1 869 790 0.00      
11 A2 1241 1127 0.00      
12 A2 1060 963 0.00      
13 A2 805 732 0.00      
14 A2 555 504 0.00      
15 B1 3191 2899 17.90      
16 B1 1079 980 3.43      
17 B1 1024 930 40.18      
18 B1 743 675 93.65      
19 B1 376 341 5.09      
20 B2 3371 3063 25.52      
21 B2 3345 3039 1.43      
22 B2 1787 1624 0.02      
23 B2 1440 1308 1.17      
24 B2 1397 1270 1.57      
25 B2 1207 1097 1.55      
26 B2 1026 932 15.18      
27 B2 870 791 6.44      

Unscaled Zero Point Vibrational Energy (zpe) 21657.3 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 19677.8 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 HF/TZVP
ABC
0.28683 0.27630 0.14445

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.876 0.000 1.850
H2 -0.876 0.000 1.850
H3 0.000 2.195 0.601
H4 0.000 -2.195 0.601
H5 0.000 1.335 -1.862
H6 0.000 -1.335 -1.862
C7 0.000 1.176 0.272
C8 0.000 -1.176 0.272
C9 0.000 0.000 1.206
C10 0.000 0.736 -0.974
C11 0.000 -0.736 -0.974

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75172.67292.67294.04034.04032.15332.15331.08683.04603.0460
H21.75172.67292.67294.04034.04032.15332.15331.08683.04603.0460
H32.67292.67294.39022.60914.30411.07113.38672.27702.14693.3270
H42.67292.67294.39024.30412.60913.38671.07112.27703.32702.1469
H54.04034.04032.60914.30412.66912.14033.29503.34581.07152.2529
H64.04034.04034.30412.60912.66913.29502.14033.34582.25291.0715
C72.15332.15331.07113.38672.14033.29502.35131.50141.32132.2816
C82.15332.15333.38671.07113.29502.14032.35131.50142.28161.3213
C91.08681.08682.27702.27703.34583.34581.50141.50142.30052.3005
C103.04603.04602.14693.32701.07152.25291.32132.28162.30051.4714
C113.04603.04603.32702.14692.25291.07152.28161.32132.30051.4714

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 107.400 H1 C9 C7 111.605
H1 C9 C8 111.605 H2 C9 C7 111.605
H2 C9 C8 111.605 H3 C7 C9 123.672
H3 C7 C10 127.319 H4 C8 C9 123.672
H4 C8 C11 127.319 H5 C10 C7 126.571
H5 C10 C11 123.979 H6 C11 C8 126.571
H6 C11 C10 123.979 C7 C9 C8 103.083
C7 C10 C11 109.449 C8 C11 C10 109.449
C9 C7 C10 109.009 C9 C8 C11 109.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.098      
2 H 0.098      
3 H 0.129      
4 H 0.129      
5 H 0.122      
6 H 0.122      
7 C -0.194      
8 C -0.194      
9 C -0.066      
10 C -0.122      
11 C -0.122      


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 0.399 0.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.624 0.000 0.000
y 0.000 -28.925 0.000
z 0.000 0.000 -27.372
Traceless
 xyz
x -5.476 0.000 0.000
y 0.000 1.573 0.000
z 0.000 0.000 3.902
Polar
3z2-r27.804
x2-y2-4.699
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.237 0.000 0.000
y 0.000 8.130 0.000
z 0.000 0.000 9.429


<r2> (average value of r2) Å2
<r2> 92.435
(<r2>)1/2 9.614