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

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-194.659763
Energy at 298.15K-194.667220
HF Energy-193.945630
Nuclear repulsion energy154.615744
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 MP4/6-31G*
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 3248 3101        
2 A 3166 3022        
3 A 3153 3011        
4 A 3030 2893        
5 A 1712 1635        
6 A 1523 1454        
7 A 1477 1410        
8 A 1333 1273        
9 A 1282 1224        
10 A 1100 1050        
11 A 1015 969        
12 A 928 886        
13 A 911 870        
14 A 676 645        
15 A 373 356        
16 A 300 286        
17 A 82 78        
18 A 3248 3101        
19 A 3165 3022        
20 A 3153 3011        
21 A 3077 2938        
22 A 1704 1627        
23 A 1482 1415        
24 A 1345 1284        
25 A 1322 1263        
26 A 1193 1140        
27 A 1016 970        
28 A 986 942        
29 A 911 870        
30 A 909 868        
31 A 604 577        
32 A 454 433        
33 A 93 89        

Unscaled Zero Point Vibrational Energy (zpe) 24984.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 23855.0 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 MP4/6-31G*
ABC
0.65069 0.07810 0.07751

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.675
C2 0.000 1.248 -0.175
C3 0.000 -1.248 -0.175
C4 0.984 2.163 -0.184
C5 -0.984 -2.163 -0.184
H6 -0.886 -0.010 1.330
H7 0.886 0.010 1.330
H8 -0.864 1.377 -0.833
H9 0.864 -1.377 -0.833
H10 0.943 3.043 -0.825
H11 -0.943 -3.043 -0.825
H12 1.863 2.063 0.454
H13 -1.863 -2.063 0.454

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51021.51022.52692.52691.10201.10202.21752.21753.52123.52122.78832.7883
C21.51022.49611.34363.55032.15282.14071.09382.84092.12924.44122.12823.8509
C31.51022.49613.55031.34362.14072.15282.84091.09384.44122.12923.85092.1282
C42.52691.34363.55034.75273.24252.63372.11043.60121.08905.58821.09075.1352
C52.52693.55031.34364.75272.63373.24253.60122.11045.58821.08905.13521.0907
H61.10202.15282.14073.24252.63371.77282.56973.10014.16093.72053.55302.4360
H71.10202.14072.15282.63373.24251.77283.10012.56973.72054.16092.43603.5530
H82.21751.09382.84092.11043.60122.56973.10013.25172.45824.42073.09243.8063
H92.21752.84091.09383.60122.11043.10012.56973.25174.42072.45823.80633.0924
H103.52122.12924.44121.08905.58824.16093.72052.45824.42076.37161.85475.9650
H113.52124.44122.12925.58821.08903.72054.16094.42072.45826.37165.96501.8547
H122.78832.12823.85091.09075.13523.55302.43603.09243.80631.85475.96505.5591
H132.78833.85092.12825.13521.09072.43603.55303.80633.09245.96501.85475.5591

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 124.519 C1 C2 H8 115.852
C1 C3 C5 124.519 C1 C3 H9 115.852
C2 C1 C3 111.466 C2 C1 H6 110.020
C2 C1 H7 109.070 C2 C4 H10 121.810
C2 C4 H12 121.572 C3 C1 H6 109.070
C3 C1 H7 110.020 C3 C5 H11 121.810
C3 C5 H13 121.572 C4 C2 H8 119.617
C5 C3 H9 119.617 H6 C1 H7 107.094
H10 C4 H12 116.618 H11 C5 H13 116.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP4/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.385      
2 C -0.123      
3 C -0.123      
4 C -0.399      
5 C -0.399      
6 H 0.179      
7 H 0.179      
8 H 0.187      
9 H 0.187      
10 H 0.177      
11 H 0.177      
12 H 0.171      
13 H 0.171      


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 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> 159.159
(<r2>)1/2 12.616