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 (1,3-Pentadiene, (Z)-)

using model chemistry: M06-2X/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31G*
 hartrees
Energy at 0K-195.199492
Energy at 298.15K-195.206828
HF Energy-195.199492
Nuclear repulsion energy155.703694
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 M06-2X/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' 3272 3098 13.66      
2 A' 3216 3045 16.21      
3 A' 3199 3029 19.66      
4 A' 3186 3017 3.22      
5 A' 3180 3011 11.95      
6 A' 3166 2998 1.65      
7 A' 3071 2908 20.21      
8 A' 1782 1688 8.16      
9 A' 1721 1629 1.28      
10 A' 1519 1439 6.62      
11 A' 1491 1412 10.54      
12 A' 1440 1364 2.83      
13 A' 1408 1333 1.97      
14 A' 1330 1259 1.39      
15 A' 1298 1229 1.15      
16 A' 1198 1134 1.31      
17 A' 1069 1012 0.02      
18 A' 976 925 10.87      
19 A' 909 861 1.06      
20 A' 609 577 5.48      
21 A' 387 366 4.02      
22 A' 218 206 0.26      
23 A" 3128 2962 16.03      
24 A" 1508 1428 6.67      
25 A" 1069 1013 0.11      
26 A" 1055 999 13.34      
27 A" 1010 957 1.23      
28 A" 955 905 45.14      
29 A" 809 767 5.96      
30 A" 644 610 27.02      
31 A" 355 336 0.18      
32 A" 139 132 0.10      
33 A" 72 68 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 25193.3 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 23858.1 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 M06-2X/6-31G*
ABC
0.52914 0.08846 0.07687

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.386 0.144 0.000
C2 1.101 -0.220 0.000
C3 0.000 0.741 0.000
C4 -1.309 0.458 0.000
C5 -1.948 -0.899 0.000
H6 2.677 1.191 0.000
H7 3.188 -0.587 0.000
H8 0.853 -1.278 0.000
H9 0.300 1.789 0.000
H10 -2.004 1.296 0.000
H11 -1.219 -1.712 0.000
H12 -2.589 -1.021 0.880
H13 -2.589 -1.021 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.33532.45993.70864.45761.08731.08492.09152.65664.53914.05455.18545.1854
C21.33531.46162.50373.12382.11512.11871.08762.16223.45562.75863.87793.8779
C32.45991.46161.33942.54672.71453.45362.19251.08952.07962.73933.25373.2537
C43.70862.50371.33941.50004.05294.61672.77262.08831.08902.17152.14502.1450
C54.45763.12382.54671.50005.07525.14492.82583.50412.19621.09141.09591.0959
H61.08732.11512.71454.05295.07521.85073.07062.45074.68234.85865.77975.7797
H71.08492.11873.45364.61675.14491.85072.43533.73965.52314.54795.86005.8600
H82.09151.08762.19252.77262.82583.07062.43533.11663.84572.11633.56213.5621
H92.65662.16221.08952.08833.50412.45073.73963.11662.35653.81594.12554.1255
H104.53913.45562.07961.08902.19624.68235.52313.84572.35653.10872.54682.5468
H114.05452.75862.73932.17151.09144.85864.54792.11633.81593.10871.76911.7691
H125.18543.87793.25372.14501.09595.77975.86003.56214.12552.54681.76911.7599
H135.18543.87793.25372.14501.09595.77975.86003.56214.12552.54681.76911.7599

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.101 C1 C2 H8 119.003
C2 C1 H6 121.296 C2 C1 H7 121.846
C2 C3 C4 126.666 C2 C3 H9 115.118
C3 C2 H8 117.896 C3 C4 C5 127.421
C3 C4 H10 117.448 C4 C3 H9 118.216
C4 C5 H11 112.909 C4 C5 H12 110.476
C4 C5 H13 110.476 C5 C4 H10 115.131
H6 C1 H7 116.858 H11 C5 H12 107.963
H11 C5 H13 107.963 H12 C5 H13 106.820
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.389      
2 C -0.094      
3 C -0.142      
4 C -0.151      
5 C -0.524      
6 H 0.159      
7 H 0.163      
8 H 0.154      
9 H 0.149      
10 H 0.154      
11 H 0.170      
12 H 0.176      
13 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.429 -0.197 0.000 0.473
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.690 0.166 0.000
y 0.166 -29.412 0.000
z 0.000 0.000 -34.470
Traceless
 xyz
x 3.251 0.166 0.000
y 0.166 2.169 0.000
z 0.000 0.000 -5.419
Polar
3z2-r2-10.838
x2-y20.721
xy0.166
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.739 0.791 0.000
y 0.791 7.169 0.000
z 0.000 0.000 3.810


<r2> (average value of r2) Å2
<r2> 155.478
(<r2>)1/2 12.469