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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-194.050652
Energy at 298.15K-194.056875
HF Energy-194.050652
Nuclear repulsion energy157.375190
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 B1B95/6-311G**
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 3243 3114 2.66      
2 A1 3217 3089 12.50      
3 A1 3036 2915 7.95      
4 A1 1577 1514 1.95      
5 A1 1412 1356 0.04      
6 A1 1394 1338 27.27      
7 A1 1130 1085 0.21      
8 A1 1031 989 0.07      
9 A1 944 906 12.51      
10 A1 811 778 0.01      
11 A2 1119 1075 0.00      
12 A2 957 919 0.00      
13 A2 716 688 0.00      
14 A2 521 500 0.00      
15 B1 3065 2943 7.76      
16 B1 957 919 0.04      
17 B1 907 871 32.02      
18 B1 680 653 71.73      
19 B1 336 323 10.23      
20 B2 3236 3107 21.21      
21 B2 3207 3079 3.67      
22 B2 1659 1592 0.19      
23 B2 1320 1268 1.64      
24 B2 1264 1213 1.69      
25 B2 1108 1064 2.62      
26 B2 982 943 14.35      
27 B2 811 779 6.89      

Unscaled Zero Point Vibrational Energy (zpe) 20319.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 19508.3 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 B1B95/6-311G**
ABC
0.28519 0.27749 0.14436

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.875 0.000 1.869
H2 -0.875 0.000 1.869
H3 0.000 2.202 0.609
H4 0.000 -2.202 0.609
H5 0.000 1.344 -1.876
H6 0.000 -1.344 -1.876
C7 0.000 1.173 0.282
C8 0.000 -1.173 0.282
C9 0.000 0.000 1.207
C10 0.000 0.730 -0.986
C11 0.000 -0.730 -0.986

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75002.68402.68404.07364.07362.15852.15851.09683.07333.0733
H21.75002.68402.68404.07364.07362.15852.15851.09683.07333.0733
H32.68402.68404.40472.62864.33021.08043.39072.28232.17003.3377
H42.68402.68404.40474.33022.62863.39071.08042.28233.33772.1700
H54.07364.07362.62864.33022.68822.16443.31503.36351.08162.2572
H64.07364.07364.33022.62862.68823.31502.16443.36352.25721.0816
C72.15852.15851.08043.39072.16443.31502.34511.49391.34232.2860
C82.15852.15853.39071.08043.31502.16442.34511.49392.28601.3423
C91.09681.09682.28232.28233.36353.36351.49391.49392.31122.3112
C103.07333.07332.17003.33771.08162.25721.34232.28602.31121.4601
C113.07333.07333.33772.17002.25721.08162.28601.34232.31121.4601

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 105.836 H1 C9 C7 111.938
H1 C9 C8 111.938 H2 C9 C7 111.938
H2 C9 C8 111.938 H3 C7 C9 124.100
H3 C7 C10 126.860 H4 C8 C9 124.100
H4 C8 C11 126.860 H5 C10 C7 126.159
H5 C10 C11 124.593 H6 C11 C8 126.159
H6 C11 C10 124.593 C7 C9 C8 103.424
C7 C10 C11 109.248 C8 C11 C10 109.248
C9 C7 C10 109.040 C9 C8 C11 109.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.156      
2 H 0.156      
3 H 0.108      
4 H 0.108      
5 H 0.102      
6 H 0.102      
7 C -0.154      
8 C -0.154      
9 C -0.226      
10 C -0.100      
11 C -0.100      


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 0.492 0.492
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 4.396 0.000 0.000
y 0.000 8.416 0.000
z 0.000 0.000 9.271


<r2> (average value of r2) Å2
<r2> 92.176
(<r2>)1/2 9.601