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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-193.962177
Energy at 298.15K-193.970021
Nuclear repulsion energy155.950578
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 3387 3057 22.96      
2 A 3316 2993 4.70      
3 A 3300 2978 6.40      
4 A 3178 2869 31.50      
5 A 1877 1694 0.52      
6 A 1609 1452 4.90      
7 A 1575 1421 0.00      
8 A 1431 1292 0.00      
9 A 1370 1236 0.00      
10 A 1183 1068 5.88      
11 A 1131 1021 5.09      
12 A 1074 970 51.07      
13 A 986 890 3.04      
14 A 734 662 8.51      
15 A 401 362 0.55      
16 A 320 289 0.10      
17 A 95 86 0.00      
18 A 3387 3057 28.63      
19 A 3314 2992 11.80      
20 A 3300 2978 36.75      
21 A 3218 2905 21.26      
22 A 1868 1686 17.90      
23 A 1585 1430 4.99      
24 A 1451 1310 3.42      
25 A 1419 1281 8.31      
26 A 1269 1145 2.70      
27 A 1142 1031 11.01      
28 A 1074 969 48.79      
29 A 1036 935 0.77      
30 A 973 878 5.10      
31 A 670 605 10.28      
32 A 486 438 2.85      
33 A 107 97 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 26630.4 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 24036.6 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 HF/6-31G**
ABC
0.67585 0.07869 0.07803

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 0.664
C2 0.000 1.251 -0.179
C3 0.000 -1.251 -0.179
C4 0.946 2.168 -0.175
C5 -0.946 -2.168 -0.175
H6 -0.875 -0.004 1.310
H7 0.875 0.004 1.310
H8 -0.850 1.372 -0.834
H9 0.850 -1.372 -0.834
H10 0.889 3.039 -0.804
H11 -0.889 -3.039 -0.804
H12 1.814 2.086 0.459
H13 -1.814 -2.086 0.459

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50841.50842.50982.50981.08751.08752.20172.20173.49003.49002.77162.7716
C21.50842.50131.31803.54712.13482.12991.07952.83322.09254.42492.09643.8508
C31.50842.50133.54711.31802.12992.13482.83321.07954.42492.09253.85082.0964
C42.50981.31803.54714.73093.20002.62502.07253.60161.07595.55651.07755.1101
C52.50983.54711.31804.73092.62503.20003.60162.07255.55651.07595.11011.0775
H61.08752.13482.12993.20002.62501.75042.54703.07254.10373.69823.51022.4366
H71.08752.12992.13482.62503.20001.75043.07252.54703.69824.10372.43663.5102
H82.20171.07952.83322.07253.60162.54703.07253.22732.40944.41073.04583.8149
H92.20172.83321.07953.60162.07253.07252.54703.22734.41072.40943.81493.0458
H103.49002.09254.42491.07595.55654.10373.69822.40944.41076.33241.83265.9298
H113.49004.42492.09255.55651.07593.69824.10374.41072.40946.33245.92981.8326
H122.77162.09643.85081.07755.11013.51022.43663.04583.81491.83265.92985.5281
H132.77163.85082.09645.11011.07752.43663.51023.81493.04585.92981.83265.5281

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 125.107 C1 C2 H8 115.587
C1 C3 C5 125.107 C1 C3 H9 115.587
C2 C1 C3 112.012 C2 C1 H6 109.575
C2 C1 H7 109.192 C2 C4 H10 121.546
C2 C4 H12 121.800 C3 C1 H6 109.192
C3 C1 H7 109.575 C3 C5 H11 121.546
C3 C5 H13 121.800 C4 C2 H8 119.304
C5 C3 H9 119.304 H6 C1 H7 107.175
H10 C4 H12 116.654 H11 C5 H13 116.654
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 -0.275 -0.431    
2 C -0.086 -0.431    
3 C -0.086 -0.104    
4 C -0.288 -0.104    
5 C -0.288 0.253    
6 H 0.131 0.164    
7 H 0.131 0.164    
8 H 0.135 -0.026    
9 H 0.135 -0.026    
10 H 0.127 0.098    
11 H 0.127 0.098    
12 H 0.120 0.172    
13 H 0.120 0.172    


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 0.063 0.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.047 0.955 0.000
y 0.955 -0.262 0.000
z 0.000 0.000 -0.785
Traceless
 xyz
x 1.571 0.955 0.000
y 0.955 -0.393 0.000
z 0.000 0.000 -1.178
Polar
3z2-r2-2.356
x2-y21.309
xy0.955
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.944 3.245 0.000
y 3.245 9.691 0.000
z 0.000 0.000 5.227


<r2> (average value of r2) Å2
<r2> 157.729
(<r2>)1/2 12.559