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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-194.672022
Energy at 298.15K-194.679587
HF Energy-193.961076
Nuclear repulsion energy155.703210
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 MP2=FULL/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 3341 3122 13.43      
2 A 3246 3033 3.19      
3 A 3234 3022 5.48      
4 A 3110 2906 20.42      
5 A 1742 1628 0.45      
6 A 1531 1430 5.01      
7 A 1496 1398 0.00      
8 A 1347 1259 0.02      
9 A 1296 1211 0.08      
10 A 1109 1037 2.03      
11 A 1046 977 13.22      
12 A 942 880 6.16      
13 A 937 876 30.33      
14 A 691 646 7.86      
15 A 376 351 0.43      
16 A 307 286 0.11      
17 A 87 81 0.01      
18 A 3341 3122 16.73      
19 A 3246 3033 9.07      
20 A 3234 3022 21.02      
21 A 3169 2961 14.19      
22 A 1733 1619 9.00      
23 A 1501 1402 2.31      
24 A 1359 1270 0.12      
25 A 1333 1245 4.69      
26 A 1206 1127 2.44      
27 A 1047 978 16.41      
28 A 1000 935 2.00      
29 A 936 875 31.32      
30 A 917 856 5.84      
31 A 618 577 9.67      
32 A 459 429 2.31      
33 A 99 93 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25516.7 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 23842.8 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 MP2=FULL/6-31G**
ABC
0.65029 0.07944 0.07885

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.679
C2 0.000 1.239 -0.169
C3 0.000 -1.239 -0.169
C4 0.988 2.139 -0.191
C5 -0.988 -2.139 -0.191
H6 -0.880 -0.011 1.327
H7 0.880 0.011 1.327
H8 -0.861 1.374 -0.814
H9 0.861 -1.374 -0.814
H10 0.948 3.007 -0.830
H11 -0.948 -3.007 -0.830
H12 1.861 2.028 0.437
H13 -1.861 -2.028 0.437

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50161.50162.51122.51121.09251.09252.20482.20483.49623.49622.76332.7633
C21.50162.47771.33623.51912.13882.12611.08452.82592.11304.40092.11043.8084
C31.50162.47773.51911.33622.12612.13882.82591.08454.40092.11303.80842.1104
C42.51121.33623.51914.71143.22662.61582.09553.57011.07965.53531.08125.0863
C52.51123.51911.33624.71142.61583.22663.57012.09555.53531.07965.08631.0812
H61.09252.13882.12613.22662.61581.75962.55043.07814.13613.69303.53032.4135
H71.09252.12612.13882.61583.22661.75963.07812.55043.69304.13612.41353.5303
H82.20481.08452.82592.09553.57012.55043.07813.24332.43774.38243.06663.7603
H92.20482.82591.08453.57012.09553.07812.55043.24334.38242.43773.76033.0666
H103.49622.11304.40091.07965.53534.13613.69302.43774.38246.30681.84335.9039
H113.49624.40092.11305.53531.07963.69304.13614.38242.43776.30685.90391.8433
H122.76332.11043.80841.08125.08633.53032.41353.06663.76031.84335.90395.5053
H132.76333.80842.11045.08631.08122.41353.53033.76033.06665.90391.84335.5053

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 124.380 C1 C2 H8 116.046
C1 C3 C5 124.380 C1 C3 H9 116.046
C2 C1 C3 111.183 C2 C1 H6 110.077
C2 C1 H7 109.072 C2 C4 H10 121.643
C2 C4 H12 121.262 C3 C1 H6 109.072
C3 C1 H7 110.077 C3 C5 H11 121.643
C3 C5 H13 121.262 C4 C2 H8 119.558
C5 C3 H9 119.558 H6 C1 H7 107.280
H10 C4 H12 117.095 H11 C5 H13 117.095
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2=FULL/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.275      
2 C -0.089      
3 C -0.089      
4 C -0.289      
5 C -0.289      
6 H 0.130      
7 H 0.130      
8 H 0.137      
9 H 0.137      
10 H 0.128      
11 H 0.128      
12 H 0.121      
13 H 0.121      


Electric dipole moments


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 7.628 2.696 0.000
y 2.696 9.066 0.000
z 0.000 0.000 5.287


<r2> (average value of r2) Å2
<r2> 156.837
(<r2>)1/2 12.523