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All results from a given calculation for C5H8 (1,4-Pentadiene)

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-193.972991
Energy at 298.15K-193.980840
Nuclear repulsion energy156.082847
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3368 3050 19.87      
2 A 3298 2986 3.63      
3 A 3282 2972 5.84      
4 A 3164 2865 28.63      
5 A 1865 1689 0.53      
6 A 1600 1449 4.30      
7 A 1566 1418 0.01      
8 A 1424 1290 0.00      
9 A 1362 1233 0.03      
10 A 1177 1065 6.18      
11 A 1129 1022 3.62      
12 A 1073 972 43.15      
13 A 978 886 2.57      
14 A 733 664 7.91      
15 A 399 361 0.56      
16 A 318 288 0.06      
17 A 96 87 0.00      
18 A 3368 3050 24.64      
19 A 3297 2985 9.80      
20 A 3283 2972 33.15      
21 A 3203 2900 19.66      
22 A 1855 1680 18.82      
23 A 1575 1426 5.73      
24 A 1442 1306 3.34      
25 A 1412 1279 9.69      
26 A 1261 1141 2.70      
27 A 1143 1035 9.71      
28 A 1072 971 41.36      
29 A 1029 932 0.82      
30 A 967 876 5.45      
31 A 671 607 8.96      
32 A 483 437 3.31      
33 A 109 99 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 26500.6 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 23996.3 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 HF/6-31G(2df,p)
ABC
0.67673 0.07882 0.07816

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.664
C2 0.000 1.251 -0.179
C3 0.000 -1.251 -0.179
C4 0.944 2.166 -0.175
C5 -0.944 -2.166 -0.175
H6 -0.876 -0.005 1.309
H7 0.876 0.005 1.309
H8 -0.851 1.370 -0.832
H9 0.851 -1.370 -0.832
H10 0.888 3.037 -0.804
H11 -0.888 -3.037 -0.804
H12 1.812 2.084 0.458
H13 -1.812 -2.084 0.458

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50791.50792.50732.50731.08751.08752.19952.19953.48803.48802.76952.7695
C21.50792.50141.31513.54472.13452.12851.07942.83192.09054.42322.09373.8483
C31.50792.50143.54471.31512.12852.13452.83191.07944.42322.09053.84832.0937
C42.50731.31513.54474.72563.19812.62222.07073.59761.07585.55191.07735.1050
C52.50733.54471.31514.72562.62223.19813.59762.07075.55191.07585.10501.0773
H61.08752.13452.12853.19812.62221.75122.54433.07024.10213.69543.50912.4338
H71.08752.12852.13452.62223.19811.75123.07022.54433.69544.10212.43383.5091
H82.19951.07942.83192.07073.59762.54433.07023.22602.40914.40763.04403.8102
H92.19952.83191.07943.59762.07073.07022.54433.22604.40762.40913.81023.0440
H103.48802.09054.42321.07585.55194.10213.69542.40914.40766.32861.83145.9252
H113.48804.42322.09055.55191.07583.69544.10214.40762.40916.32865.92521.8314
H122.76952.09373.84831.07735.10503.50912.43383.04403.81021.83145.92525.5236
H132.76953.84832.09375.10501.07732.43383.50913.81023.04405.92521.83145.5236

picture of 1,4-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.152 C1 C2 H8 115.452
C1 C3 C5 125.152 C1 C3 H9 115.452
C2 C1 C3 112.079 C2 C1 H6 109.585
C2 C1 H7 109.113 C2 C4 H10 121.626
C2 C4 H12 121.816 C3 C1 H6 109.113
C3 C1 H7 109.585 C3 C5 H11 121.626
C3 C5 H13 121.816 C4 C2 H8 119.394
C5 C3 H9 119.394 H6 C1 H7 107.246
H10 C4 H12 116.558 H11 C5 H13 116.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.279      
2 C -0.055      
3 C -0.055      
4 C -0.365      
5 C -0.365      
6 H 0.136      
7 H 0.136      
8 H 0.139      
9 H 0.139      
10 H 0.145      
11 H 0.145      
12 H 0.139      
13 H 0.139      


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 0.070 0.070
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.054 0.890 0.000
y 0.890 -0.293 0.000
z 0.000 0.000 -0.762
Traceless
 xyz
x 1.582 0.890 0.000
y 0.890 -0.439 0.000
z 0.000 0.000 -1.142
Polar
3z2-r2-2.284
x2-y21.347
xy0.890
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.059 3.028 0.000
y 3.028 9.981 0.000
z 0.000 0.000 5.628


<r2> (average value of r2) Å2
<r2> 157.394
(<r2>)1/2 12.546