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, (E)-)

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 C1 1A'
Energy calculated at M06-2X/6-31G*
 hartrees
Energy at 0K-195.201564
Energy at 298.15K-195.208949
HF Energy-195.201564
Nuclear repulsion energy153.544600
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 3277 3104 11.66      
2 A 3188 3019 6.10      
3 A 3183 3014 45.63      
4 A 3180 3011 0.37      
5 A 3173 3004 1.28      
6 A 3156 2989 7.65      
7 A 3064 2902 26.23      
8 A 1784 1690 12.71      
9 A 1723 1632 3.01      
10 A 1521 1440 7.84      
11 A 1473 1395 3.03      
12 A 1438 1362 3.51      
13 A 1348 1277 2.22      
14 A 1335 1264 0.04      
15 A 1302 1233 2.36      
16 A 1223 1158 1.01      
17 A 1121 1061 0.10      
18 A 996 943 8.95      
19 A 917 868 5.02      
20 A 485 459 0.00      
21 A 451 427 0.41      
22 A 193 183 1.71      
23 A 3125 2959 16.56      
24 A 1507 1427 6.93      
25 A 1078 1021 1.42      
26 A 1061 1005 32.51      
27 A 1003 950 11.53      
28 A 955 905 39.28      
29 A 859 813 5.47      
30 A 659 624 1.60      
31 A 262 248 2.14      
32 A 203 192 0.04      
33 A 121 114 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 25180.8 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 23846.3 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 M06-2X/6-31G*
ABC
0.95341 0.07217 0.06794

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 -2.417 0.755 0.000
C2 -1.411 -0.123 0.000
C3 0.000 0.252 0.000
C4 1.003 -0.631 0.000
C5 2.458 -0.275 0.000
H6 -2.232 1.826 0.000
H7 -3.454 0.436 0.000
H8 -1.626 -1.191 0.000
H9 0.222 1.320 0.000
H10 0.762 -1.695 0.000
H11 2.600 0.809 0.000
H12 2.965 -0.687 0.880
H13 2.965 -0.687 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.33492.46913.69084.98321.08711.08482.10032.69954.01355.01775.64085.6408
C21.33491.46012.46763.87252.11442.11781.08992.17932.68234.11814.49904.4990
C32.46911.46011.33672.51422.73123.45902.17431.09092.09062.65913.23203.2320
C43.69082.46761.33671.49784.06274.58342.68882.10171.09082.15032.15032.1503
C54.98323.87252.51421.49785.13955.95504.18622.74652.21221.09351.09611.0961
H61.08712.11442.73124.06275.13951.85103.07712.50614.62174.93805.83935.8393
H71.08482.11783.45904.58345.95501.85102.44663.78134.72386.06576.57536.5753
H82.10031.08992.17432.68884.18623.07712.44663.11822.44104.67594.70164.7016
H92.69952.17931.09092.10172.74652.50613.78133.11823.06272.43193.51063.5106
H104.01352.68232.09061.09082.21224.62174.72382.44103.06273.10632.57712.5771
H115.01774.11812.65912.15031.09354.93806.06574.67592.43193.10631.77421.7742
H125.64084.49903.23202.15031.09615.83936.57534.70163.51062.57711.77421.7607
H135.64084.49903.23202.15031.09615.83936.57534.70163.51062.57711.77421.7607

picture of 1,3-Pentadiene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.049 C1 C2 H8 119.695
C2 C1 H6 121.278 C2 C1 H7 121.807
C2 C3 C4 123.784 C2 C3 H9 116.625
C3 C2 H8 116.256 C3 C4 C5 124.895
C3 C4 H10 118.559 C4 C3 H9 119.591
C4 C5 H11 111.202 C4 C5 H12 111.046
C4 C5 H13 111.046 C5 C4 H10 116.546
H6 C1 H7 116.916 H11 C5 H12 108.255
H11 C5 H13 108.255 H12 C5 H13 106.872
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 -0.394      
2 C -0.093      
3 C -0.130      
4 C -0.144      
5 C -0.526      
6 H 0.158      
7 H 0.163      
8 H 0.152      
9 H 0.146      
10 H 0.151      
11 H 0.169      
12 H 0.175      
13 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.495 -0.186 0.000 0.529
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.072 -0.238 0.000
y -0.238 -29.106 0.000
z 0.000 0.000 -34.473
Traceless
 xyz
x 2.717 -0.238 0.000
y -0.238 2.667 0.000
z 0.000 0.000 -5.384
Polar
3z2-r2-10.768
x2-y20.034
xy-0.238
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.063 -2.578 0.000
y -2.578 8.163 0.000
z 0.000 0.000 3.825


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000