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

using model chemistry: HF/6-31G

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
 hartrees
Energy at 0K-193.876785
Energy at 298.15K-193.884696
Nuclear repulsion energy155.739861
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
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 3403 3073 25.84      
2 A 3328 3005 3.58      
3 A 3313 2991 8.38      
4 A 3176 2867 30.65      
5 A 1870 1689 0.34      
6 A 1639 1480 9.16      
7 A 1607 1451 0.00      
8 A 1460 1318 0.00      
9 A 1394 1259 0.04      
10 A 1212 1094 2.08      
11 A 1154 1042 1.05      
12 A 1114 1006 82.62      
13 A 999 902 4.84      
14 A 743 671 10.08      
15 A 412 372 0.55      
16 A 328 296 0.25      
17 A 93 84 0.00      
18 A 3403 3073 32.58      
19 A 3327 3004 11.04      
20 A 3313 2991 36.00      
21 A 3215 2903 19.82      
22 A 1859 1679 20.79      
23 A 1609 1453 4.69      
24 A 1476 1333 3.44      
25 A 1458 1317 2.46      
26 A 1295 1170 2.36      
27 A 1164 1051 3.66      
28 A 1113 1005 80.62      
29 A 1051 949 1.37      
30 A 1004 907 6.39      
31 A 683 617 14.26      
32 A 497 448 2.33      
33 A 104 93 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 26906.9 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 24294.3 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
ABC
0.68081 0.07826 0.07760

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.660
C2 0.000 1.252 -0.183
C3 0.000 -1.252 -0.183
C4 0.946 2.177 -0.170
C5 -0.946 -2.177 -0.170
H6 -0.873 -0.004 1.307
H7 0.873 0.004 1.307
H8 -0.847 1.366 -0.839
H9 0.847 -1.366 -0.839
H10 0.892 3.049 -0.795
H11 -0.892 -3.049 -0.795
H12 1.808 2.100 0.467
H13 -1.808 -2.100 0.467

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50901.50902.51482.51481.08671.08672.19782.19783.49393.49392.77802.7780
C21.50902.50351.32333.55722.13482.13071.07742.82882.09764.43452.10033.8636
C31.50902.50353.55721.32332.13072.13482.82881.07744.43452.09763.86362.1003
C42.51481.32333.55724.74773.20092.62932.07793.60761.07355.57491.07525.1270
C52.51483.55721.32334.74772.62933.20093.60762.07795.57491.07355.12701.0752
H61.08672.13482.13073.20092.62931.74622.54603.06924.10503.70023.51002.4446
H71.08672.13072.13482.62933.20091.74623.06922.54603.70024.10502.44463.5100
H82.19781.07742.82882.07793.60762.54603.06923.21492.42014.41543.04843.8270
H92.19782.82881.07743.60762.07793.06922.54603.21494.41542.42013.82703.0484
H103.49392.09764.43451.07355.57494.10503.70022.42014.41546.35311.82515.9494
H113.49394.43452.09765.57491.07353.70024.10504.41542.42016.35315.94941.8251
H122.77802.10033.86361.07525.12703.51002.44463.04843.82701.82515.94945.5426
H132.77803.86362.10035.12701.07522.44463.51003.82703.04845.94941.82515.5426

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 125.096 C1 C2 H8 115.359
C1 C3 C5 125.096 C1 C3 H9 115.359
C2 C1 C3 112.101 C2 C1 H6 109.586
C2 C1 H7 109.258 C2 C4 H10 121.788
C2 C4 H12 121.916 C3 C1 H6 109.258
C3 C1 H7 109.586 C3 C5 H11 121.788
C3 C5 H13 121.916 C4 C2 H8 119.543
C5 C3 H9 119.543 H6 C1 H7 106.915
H10 C4 H12 116.296 H11 C5 H13 116.296
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.412 -0.434    
2 C -0.106 -0.434    
3 C -0.106 -0.110    
4 C -0.366 -0.110    
5 C -0.366 0.270    
6 H 0.177 0.166    
7 H 0.177 0.166    
8 H 0.179 -0.028    
9 H 0.179 -0.028    
10 H 0.163 0.099    
11 H 0.163 0.099    
12 H 0.158 0.171    
13 H 0.158 0.171    


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 0.000 0.000 0.102 0.102
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.000 0.958 0.000
y 0.958 -0.250 0.000
z 0.000 0.000 -0.750
Traceless
 xyz
x 1.500 0.958 0.000
y 0.958 -0.376 0.000
z 0.000 0.000 -1.124
Polar
3z2-r2-2.249
x2-y21.251
xy0.958
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.868 3.437 0.000
y 3.437 9.582 0.000
z 0.000 0.000 4.967


<r2> (average value of r2) Å2
<r2> 158.724
(<r2>)1/2 12.599