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 (1,2-Pentadiene)

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-195.371118
Energy at 298.15K-195.378443
HF Energy-195.371118
Nuclear repulsion energy156.628353
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/Def2TZVPP
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' 3119 3002 4.89      
2 A' 3114 2998 9.78      
3 A' 3100 2984 32.03      
4 A' 3037 2924 20.72      
5 A' 3008 2895 35.55      
6 A' 2045 1969 42.57      
7 A' 1504 1448 5.85      
8 A' 1493 1438 1.00      
9 A' 1478 1423 5.40      
10 A' 1420 1367 4.16      
11 A' 1382 1330 15.22      
12 A' 1342 1292 0.86      
13 A' 1155 1112 1.46      
14 A' 1088 1048 2.74      
15 A' 1000 963 0.35      
16 A' 880 847 52.61      
17 A' 845 813 2.46      
18 A' 639 615 4.69      
19 A' 362 348 4.01      
20 A' 152 146 0.46      
21 A" 3188 3069 2.68      
22 A" 3100 2984 29.36      
23 A" 3025 2911 15.24      
24 A" 1496 1440 7.81      
25 A" 1291 1243 0.16      
26 A" 1107 1066 2.45      
27 A" 1027 989 0.67      
28 A" 908 874 14.78      
29 A" 793 764 2.73      
30 A" 529 509 3.33      
31 A" 338 325 8.14      
32 A" 243 234 0.04      
33 A" 104 101 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 24656.4 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 23734.2 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/Def2TZVPP
ABC
0.34498 0.10550 0.08470

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.398 0.430 0.000
C2 -1.472 -1.094 0.000
C3 0.000 1.006 0.000
C4 1.112 0.327 0.000
C5 2.229 -0.343 0.000
H6 -1.929 0.827 0.871
H7 -1.929 0.827 -0.871
H8 -0.983 -1.512 -0.880
H9 -2.510 -1.426 0.000
H10 -0.983 -1.512 0.880
H11 0.070 2.091 0.000
H12 2.717 -0.628 -0.925
H13 2.717 -0.628 0.925

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52581.51202.51213.70921.09441.09442.17262.16392.17262.21654.34904.3490
C21.52582.56402.94823.77662.15782.15781.09031.09041.09033.53814.31534.3153
C31.51202.56401.30272.60572.12402.12402.84253.49502.84251.08733.30283.3028
C42.51212.94821.30271.30303.20223.20222.92264.02382.92262.04882.08452.0845
C53.70923.77662.60571.30304.40674.40673.52964.86193.52963.25371.08401.0840
H61.09442.15782.12403.20224.40671.74233.07132.48442.52312.52035.18944.8689
H71.09442.15782.12403.20224.40671.74232.52312.48443.07132.52034.86895.1894
H82.17261.09032.84252.92263.52963.07132.52311.76521.76013.85533.80454.2108
H92.16391.09043.49504.02384.86192.48442.48441.76521.76524.36195.36875.3687
H102.17261.09032.84252.92263.52962.52313.07131.76011.76523.85534.21083.8045
H112.21653.53811.08732.04883.25372.52032.52033.85534.36193.85533.90583.9058
H124.34904.31533.30282.08451.08405.18944.86893.80455.36874.21083.90581.8502
H134.34904.31533.30282.08451.08404.86895.18944.21085.36873.80453.90581.8502

picture of 1,2-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H8 111.202 C1 C2 H9 110.502
C1 C2 H10 111.202 C1 C3 C4 126.208
C1 C3 H11 116.064 C2 C1 C3 115.134
C2 C1 H6 109.787 C2 C1 H7 109.787
C3 C1 H6 108.087 C3 C1 H7 108.087
C3 C4 C5 179.506 C4 C3 H11 117.728
C4 C5 H12 121.410 C4 C5 H13 121.410
H6 C1 H7 105.503 H8 C2 H9 108.084
H8 C2 H10 107.633 H9 C2 H10 108.084
H12 C5 H13 117.175
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.026      
2 C -0.258      
3 C -0.226      
4 C 0.036      
5 C -0.246      
6 H 0.066      
7 H 0.066      
8 H 0.085      
9 H 0.081      
10 H 0.085      
11 H 0.107      
12 H 0.115      
13 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.497 0.033 0.000 0.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.619 -1.805 0.000
y -1.805 -32.222 0.000
z 0.000 0.000 -32.379
Traceless
 xyz
x 1.681 -1.805 0.000
y -1.805 -0.723 0.000
z 0.000 0.000 -0.958
Polar
3z2-r2-1.917
x2-y21.603
xy-1.805
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.670 -1.811 0.000
y -1.811 8.682 0.000
z 0.000 0.000 6.822


<r2> (average value of r2) Å2
<r2> 145.820
(<r2>)1/2 12.076