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

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-193.512342
Energy at 298.15K-193.518571
HF Energy-192.806672
Nuclear repulsion energy155.361788
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 CCD/cc-pVDZ
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 3268 3127 3.61      
2 A1 3242 3101 8.02      
3 A1 3066 2933 12.29      
4 A1 1609 1539 1.83      
5 A1 1434 1372 1.86      
6 A1 1414 1353 14.03      
7 A1 1131 1082 0.08      
8 A1 1023 979 0.05      
9 A1 940 900 8.68      
10 A1 808 773 0.00      
11 A2 1137 1088 0.00      
12 A2 939 899 0.00      
13 A2 722 691 0.00      
14 A2 509 487 0.00      
15 B1 3110 2975 10.74      
16 B1 953 912 0.80      
17 B1 933 892 23.00      
18 B1 683 653 61.11      
19 B1 341 326 6.13      
20 B2 3259 3118 21.95      
21 B2 3233 3093 1.22      
22 B2 1675 1603 0.03      
23 B2 1339 1281 1.32      
24 B2 1284 1229 0.48      
25 B2 1113 1065 1.22      
26 B2 987 944 7.45      
27 B2 814 778 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 20482.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19595.2 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 CCD/cc-pVDZ
ABC
0.27756 0.27055 0.14065

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.889 0.000 1.889
H2 -0.889 0.000 1.889
H3 0.000 2.229 0.613
H4 0.000 -2.229 0.613
H5 0.000 1.365 -1.898
H6 0.000 -1.365 -1.898
C7 0.000 1.185 0.284
C8 0.000 -1.185 0.284
C9 0.000 0.000 1.227
C10 0.000 0.742 -0.999
C11 0.000 -0.742 -0.999

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.77782.71752.71754.12264.12262.18402.18401.10803.11113.1111
H21.77782.71752.71754.12264.12262.18402.18401.10803.11113.1111
H32.71752.71754.45702.65544.38381.09363.42972.31172.19213.3797
H42.71752.71754.45704.38382.65543.42971.09362.31173.37972.1921
H54.12264.12262.65544.38382.72972.19003.35683.41071.09412.2912
H64.12264.12264.38382.65542.72973.35682.19003.41072.29121.0941
C72.18402.18401.09363.42972.19003.35682.37081.51481.35732.3156
C82.18402.18403.42971.09363.35682.19002.37081.51482.31561.3573
C91.10801.10802.31172.31173.41073.41071.51481.51482.34652.3465
C103.11113.11112.19213.37971.09412.29121.35732.31562.34651.4846
C113.11113.11113.37972.19212.29121.09412.31561.35732.34651.4846

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 106.688 H1 C9 C7 111.818
H1 C9 C8 111.818 H2 C9 C7 111.818
H2 C9 C8 111.818 H3 C7 C9 124.021
H3 C7 C10 126.530 H4 C8 C9 124.021
H4 C8 C11 126.530 H5 C10 C7 126.265
H5 C10 C11 124.681 H6 C11 C8 126.265
H6 C11 C10 124.681 C7 C9 C8 102.995
C7 C10 C11 109.053 C8 C11 C10 109.053
C9 C7 C10 109.449 C9 C8 C11 109.449
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability