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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-191.615960
Energy at 298.15K-191.621822
HF Energy-191.615960
Nuclear repulsion energy153.411544
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 BLYP/STO-3G
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 3399 3145 0.01      
2 A1 3366 3114 8.78      
3 A1 3198 2958 0.85      
4 A1 1612 1491 1.07      
5 A1 1556 1439 5.77      
6 A1 1448 1340 7.42      
7 A1 1159 1072 0.12      
8 A1 1029 952 0.71      
9 A1 943 873 3.64      
10 A1 818 757 0.08      
11 A2 1176 1088 0.00      
12 A2 950 879 0.00      
13 A2 722 668 0.00      
14 A2 519 480 0.00      
15 B1 3285 3040 0.06      
16 B1 964 892 1.58      
17 B1 953 882 0.35      
18 B1 691 639 34.42      
19 B1 352 326 7.46      
20 B2 3388 3135 1.03      
21 B2 3357 3106 6.17      
22 B2 1704 1577 3.25      
23 B2 1357 1256 1.72      
24 B2 1315 1216 4.00      
25 B2 1144 1058 0.01      
26 B2 1007 932 4.82      
27 B2 824 762 3.94      

Unscaled Zero Point Vibrational Energy (zpe) 21117.2 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 19537.6 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 BLYP/STO-3G
ABC
0.27073 0.26311 0.13695

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.897 0.000 1.915
H2 -0.897 0.000 1.915
H3 0.000 2.255 0.623
H4 0.000 -2.255 0.623
H5 0.000 1.366 -1.925
H6 0.000 -1.366 -1.925
C7 0.000 1.206 0.281
C8 0.000 -1.206 0.281
C9 0.000 0.000 1.250
C10 0.000 0.751 -1.008
C11 0.000 -0.751 -1.008

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.79472.75002.75004.17394.17392.22072.22071.11693.14853.1485
H21.79472.75002.75004.17394.17392.22072.22071.11693.14853.1485
H32.75002.75004.51072.69854.42821.10393.47802.34112.21843.4200
H42.75002.75004.51074.42822.69853.47801.10392.34113.42002.2184
H54.17394.17392.69854.42822.73292.21173.38853.45701.10482.3077
H64.17394.17394.42822.69852.73293.38852.21173.45702.30771.1048
C72.22072.22071.10393.47802.21173.38852.41161.54741.36622.3428
C82.22072.22073.47801.10393.38852.21172.41161.54742.34281.3662
C91.11691.11692.34112.34113.45703.45701.54741.54742.37962.3796
C103.14853.14852.21843.42001.10482.30771.36622.34282.37961.5020
C113.14853.14853.42002.21842.30771.10482.34281.36622.37961.5020

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 106.920 H1 C9 C7 111.908
H1 C9 C8 111.908 H2 C9 C7 111.908
H2 C9 C8 111.908 H3 C7 C9 123.142
H3 C7 C10 127.498 H4 C8 C9 123.142
H4 C8 C11 127.498 H5 C10 C7 126.702
H5 C10 C11 123.853 H6 C11 C8 126.702
H6 C11 C10 123.853 C7 C9 C8 102.389
C7 C10 C11 109.445 C8 C11 C10 109.445
C9 C7 C10 109.360 C9 C8 C11 109.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.089      
2 H 0.089      
3 H 0.073      
4 H 0.073      
5 H 0.074      
6 H 0.074      
7 C -0.078      
8 C -0.078      
9 C -0.141      
10 C -0.087      
11 C -0.087      


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 0.476 0.476
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 1.584 0.000 0.000
y 0.000 5.042 0.000
z 0.000 0.000 5.634


<r2> (average value of r2) Å2
<r2> 94.851
(<r2>)1/2 9.739