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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-195.192131
Energy at 298.15K-195.199643
Nuclear repulsion energy155.523977
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 B1B95/6-31G**
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 3258 3110 15.88      
2 A 3176 3033 4.83      
3 A 3163 3020 5.21      
4 A 3044 2906 21.62      
5 A 1748 1669 0.71      
6 A 1477 1410 6.51      
7 A 1449 1384 0.05      
8 A 1320 1260 0.03      
9 A 1262 1205 0.09      
10 A 1088 1039 1.65      
11 A 1035 989 8.85      
12 A 946 903 36.97      
13 A 918 876 4.03      
14 A 683 652 8.69      
15 A 371 354 0.50      
16 A 295 282 0.09      
17 A 89 85 0.01      
18 A 3257 3110 19.59      
19 A 3175 3032 11.61      
20 A 3163 3020 23.83      
21 A 3094 2954 14.57      
22 A 1735 1657 19.86      
23 A 1456 1390 3.45      
24 A 1331 1271 0.10      
25 A 1296 1237 5.23      
26 A 1174 1121 3.85      
27 A 1038 991 13.08      
28 A 979 935 2.73      
29 A 944 902 35.20      
30 A 893 852 8.97      
31 A 615 587 10.52      
32 A 451 431 2.97      
33 A 103 98 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 25013.1 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 23882.5 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 B1B95/6-31G**
ABC
0.67174 0.07856 0.07796

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.660
C2 0.000 1.246 -0.179
C3 0.000 -1.246 -0.179
C4 0.959 2.166 -0.173
C5 -0.959 -2.166 -0.173
H6 -0.882 -0.010 1.312
H7 0.882 0.010 1.312
H8 -0.855 1.367 -0.842
H9 0.855 -1.367 -0.842
H10 0.910 3.046 -0.806
H11 -0.910 -3.046 -0.806
H12 1.829 2.075 0.471
H13 -1.829 -2.075 0.471

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50241.50242.51162.51161.09641.09642.20362.20363.50083.50082.77232.7723
C21.50242.49181.32943.54462.13942.12811.08852.82782.11214.43172.11063.8464
C31.50242.49183.54461.32942.12812.13942.82781.08854.43172.11213.84642.1106
C42.51161.32943.54464.73853.21402.61962.09223.59761.08455.57341.08635.1163
C52.51163.54461.32944.73852.61963.21403.59762.09225.57341.08455.11631.0863
H61.09642.13942.12813.21402.61961.76392.55613.08164.12713.70183.52142.4224
H71.09642.12812.13942.61963.21401.76393.08162.55613.70184.12712.42243.5214
H82.20361.08852.82782.09223.59762.55613.08163.22452.43654.41313.07053.8102
H92.20362.82781.08853.59762.09223.08162.55613.22454.41312.43653.81023.0705
H103.50082.11214.43171.08455.57344.12713.70182.43654.41316.35781.84875.9460
H113.50084.43172.11215.57341.08453.70184.12714.41312.43656.35785.94601.8487
H122.77232.11063.84641.08635.11633.52142.42243.07053.81021.84875.94605.5316
H132.77233.84642.11065.11631.08632.42243.52143.81023.07055.94601.84875.5316

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 124.872 C1 C2 H8 115.617
C1 C3 C5 124.872 C1 C3 H9 115.617
C2 C1 C3 112.056 C2 C1 H6 109.836
C2 C1 H7 108.942 C2 C4 H10 121.765
C2 C4 H12 121.463 C3 C1 H6 108.942
C3 C1 H7 109.836 C3 C5 H11 121.765
C3 C5 H13 121.463 C4 C2 H8 119.504
C5 C3 H9 119.504 H6 C1 H7 107.103
H10 C4 H12 116.771 H11 C5 H13 116.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.297      
2 C -0.046      
3 C -0.046      
4 C -0.271      
5 C -0.271      
6 H 0.128      
7 H 0.128      
8 H 0.113      
9 H 0.113      
10 H 0.115      
11 H 0.115      
12 H 0.109      
13 H 0.109      


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 0.074 0.074
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.202 0.846 0.000
y 0.846 -31.288 0.000
z 0.000 0.000 -31.756
Traceless
 xyz
x 1.320 0.846 0.000
y 0.846 -0.309 0.000
z 0.000 0.000 -1.011
Polar
3z2-r2-2.022
x2-y21.086
xy0.846
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.916 3.071 0.000
y 3.071 10.031 0.000
z 0.000 0.000 5.486


<r2> (average value of r2) Å2
<r2> 157.628
(<r2>)1/2 12.555