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: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-195.123802
Energy at 298.15K-195.116631
HF Energy-195.309812
Nuclear repulsion energy155.243745
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 B3LYP/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' 3244 3116 19.20      
2 A' 3174 3048 29.23      
3 A' 3165 3040 28.26      
4 A' 3159 3034 9.63      
5 A' 3145 3020 7.15      
6 A' 3132 3007 4.73      
7 A' 3034 2913 31.84      
8 A' 1734 1665 8.93      
9 A' 1681 1614 1.71      
10 A' 1520 1460 6.48      
11 A' 1492 1433 10.55      
12 A' 1445 1387 2.53      
13 A' 1414 1357 2.50      
14 A' 1336 1283 1.16      
15 A' 1304 1252 1.20      
16 A' 1201 1153 1.69      
17 A' 1074 1031 0.11      
18 A' 974 935 11.04      
19 A' 899 864 2.50      
20 A' 618 594 5.12      
21 A' 389 374 4.05      
22 A' 219 210 0.30      
23 A" 3076 2953 24.14      
24 A" 1511 1451 5.85      
25 A" 1072 1029 0.84      
26 A" 1047 1005 10.01      
27 A" 995 956 1.69      
28 A" 925 888 42.47      
29 A" 808 776 6.31      
30 A" 646 620 21.35      
31 A" 360 346 0.05      
32 A" 150 144 0.03      
33 A" 124 119 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 25033.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 24039.6 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 B3LYP/6-31G*
ABC
0.53256 0.08737 0.07611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.400 0.156 0.000
C2 1.108 -0.208 0.000
C3 0.000 0.738 0.000
C4 -1.315 0.448 0.000
C5 -1.959 -0.908 0.000
H6 2.697 1.202 0.000
H7 3.201 -0.577 0.000
H8 0.866 -1.269 0.000
H9 0.288 1.789 0.000
H10 -2.010 1.287 0.000
H11 -1.236 -1.727 0.000
H12 -2.605 -1.031 0.880
H13 -2.605 -1.031 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34162.46933.72594.48681.08811.08592.09352.66964.55314.09385.21865.2186
C21.34161.45712.51043.14632.12432.12511.08862.15913.45882.79303.90433.9043
C32.46931.45711.34612.55852.73653.46072.18591.09032.08432.75703.26963.2696
C43.72592.51041.34611.50154.08174.63082.77592.08981.09002.17672.15132.1513
C54.48683.14632.55851.50155.11185.17092.84823.51072.19571.09301.09861.0986
H61.08812.12432.73654.08175.11181.84963.07592.47904.70814.90355.82025.8202
H71.08592.12513.46074.63085.17091.84962.43563.75295.53514.58335.89045.8904
H82.09351.08862.18592.77592.84823.07592.43563.11263.84852.15073.58913.5891
H92.66962.15911.09032.08983.51072.47903.75293.11262.35293.83214.13534.1353
H104.55313.45882.08431.09002.19574.70815.53513.84852.35293.11232.54992.5499
H114.09382.79302.75702.17671.09304.90354.58332.15073.83213.11231.77071.7707
H125.21863.90433.26962.15131.09865.82025.89043.58914.13532.54991.77071.7598
H135.21863.90433.26962.15131.09865.82025.89043.58914.13532.54991.77071.7598

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 123.683 C1 C2 H8 118.967
C2 C1 H6 121.749 C2 C1 H7 121.844
C2 C3 C4 127.132 C2 C3 H9 114.757
C3 C2 H8 117.350 C3 C4 C5 127.920
C3 C4 H10 117.463 C4 C3 H9 118.110
C4 C5 H11 112.984 C4 C5 H12 110.584
C4 C5 H13 110.584 C5 C4 H10 114.618
H6 C1 H7 116.406 H11 C5 H12 107.896
H11 C5 H13 107.896 H12 C5 H13 106.641
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.355      
2 C -0.057      
3 C -0.115      
4 C -0.112      
5 C -0.487      
6 H 0.139      
7 H 0.141      
8 H 0.124      
9 H 0.120      
10 H 0.127      
11 H 0.157      
12 H 0.159      
13 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.480 -0.209 0.000 0.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 156.824
(<r2>)1/2 12.523