return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8 (1,2-Pentadiene)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-195.072678
Energy at 298.15K-195.080027
HF Energy-195.072678
Nuclear repulsion energy156.551545
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 HSEh1PBE/6-31+G**
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' 3159 3016 5.07      
2 A' 3157 3014 8.18      
3 A' 3149 3006 28.26      
4 A' 3065 2927 21.35      
5 A' 3043 2906 36.51      
6 A' 2078 1984 42.39      
7 A' 1505 1437 8.96      
8 A' 1492 1424 0.47      
9 A' 1476 1409 5.70      
10 A' 1419 1355 6.76      
11 A' 1371 1309 13.36      
12 A' 1353 1292 0.95      
13 A' 1161 1109 2.44      
14 A' 1096 1047 2.81      
15 A' 1005 960 0.91      
16 A' 878 838 64.23      
17 A' 866 827 4.82      
18 A' 641 612 4.50      
19 A' 363 347 4.74      
20 A' 152 145 0.58      
21 A" 3237 3091 1.81      
22 A" 3149 3007 26.47      
23 A" 3075 2936 13.72      
24 A" 1496 1428 10.04      
25 A" 1286 1228 0.14      
26 A" 1102 1052 3.00      
27 A" 1021 975 0.28      
28 A" 906 865 17.06      
29 A" 791 755 3.44      
30 A" 529 505 3.78      
31 A" 346 330 11.58      
32 A" 254 242 0.02      
33 A" 107 102 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 24863.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 23739.5 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 HSEh1PBE/6-31+G**
ABC
0.34274 0.10619 0.08504

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.397 0.444 0.000
C2 -1.466 -1.076 0.000
C3 0.000 1.011 0.000
C4 1.109 0.316 0.000
C5 2.223 -0.370 0.000
H6 -1.928 0.844 0.875
H7 -1.928 0.844 -0.875
H8 -0.971 -1.493 -0.883
H9 -2.506 -1.416 0.000
H10 -0.971 -1.493 0.883
H11 0.084 2.099 0.000
H12 2.705 -0.667 -0.929
H13 2.705 -0.667 0.929

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52151.50782.50913.71031.09871.09872.17062.16592.17062.22124.35014.3501
C21.52152.55082.92703.75582.15962.15961.09451.09421.09453.53354.29294.2929
C31.50782.55081.30902.61742.12412.12412.82733.48922.82731.09123.31623.3162
C42.50912.92701.30901.30843.20453.20452.89424.00842.89422.05712.09192.0919
C53.71033.75582.61741.30844.41274.41273.49874.84323.49873.26721.08771.0877
H61.09872.15962.12413.20454.41271.74903.07632.49142.52512.52815.19654.8738
H71.09872.15962.12413.20454.41271.74902.52512.49143.07632.52814.87385.1965
H82.17061.09452.82732.89423.49873.07632.52511.77221.76543.84663.76814.1807
H92.16591.09423.48924.00844.84322.49142.49141.77221.77224.36685.34605.3460
H102.17061.09452.82732.89423.49872.52513.07631.76541.77223.84664.18073.7681
H112.22123.53351.09122.05713.26722.52812.52813.84664.36683.84663.92233.9223
H124.35014.29293.31622.09191.08775.19654.87383.76815.34604.18073.92231.8576
H134.35014.29293.31622.09191.08774.87385.19654.18075.34603.76813.92231.8576

picture of 1,2-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H8 111.096 C1 C2 H9 110.732
C1 C2 H10 111.096 C1 C3 C4 125.785
C1 C3 H11 116.527 C2 C1 C3 114.712
C2 C1 H6 109.972 C2 C1 H7 109.972
C3 C1 H6 108.131 C3 C1 H7 108.131
C3 C4 C5 179.523 C4 C3 H11 117.688
C4 C5 H12 121.359 C4 C5 H13 121.359
H6 C1 H7 105.496 H8 C2 H9 108.135
H8 C2 H10 107.510 H9 C2 H10 108.135
H12 C5 H13 117.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.433      
2 C -0.611      
3 C -0.545      
4 C 0.558      
5 C -0.347      
6 H 0.174      
7 H 0.174      
8 H 0.176      
9 H 0.163      
10 H 0.176      
11 H 0.175      
12 H 0.170      
13 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.519 0.018 0.000 0.520
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.289 -1.968 0.000
y -1.968 -31.963 0.000
z 0.000 0.000 -32.272
Traceless
 xyz
x 1.828 -1.968 0.000
y -1.968 -0.682 0.000
z 0.000 0.000 -1.146
Polar
3z2-r2-2.291
x2-y21.673
xy-1.968
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.239 -2.068 0.000
y -2.068 8.356 0.000
z 0.000 0.000 6.483


<r2> (average value of r2) Å2
<r2> 145.241
(<r2>)1/2 12.052