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All results from a given calculation for C5H8 (1,2-Pentadiene)

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-194.110129
Energy at 298.15K-194.117307
Nuclear repulsion energy155.072002
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 BLYP/3-21G
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 3104 3087 7.99      
2 A 3048 3031 31.23      
3 A 3044 3027 12.02      
4 A 3043 3026 25.34      
5 A 3038 3021 13.89      
6 A 2983 2966 19.58      
7 A 2966 2950 17.94      
8 A 2947 2931 30.38      
9 A 2004 1992 18.62      
10 A 1533 1525 4.78      
11 A 1527 1519 6.54      
12 A 1508 1500 0.08      
13 A 1488 1480 3.08      
14 A 1425 1417 5.46      
15 A 1383 1376 11.34      
16 A 1305 1298 5.55      
17 A 1296 1288 0.00      
18 A 1143 1137 0.41      
19 A 1107 1101 1.82      
20 A 1069 1063 3.23      
21 A 1039 1033 0.32      
22 A 976 971 0.64      
23 A 887 882 14.60      
24 A 859 855 64.16      
25 A 803 799 1.68      
26 A 797 792 5.24      
27 A 620 616 1.12      
28 A 509 506 6.26      
29 A 350 348 3.45      
30 A 312 310 5.55      
31 A 237 235 0.09      
32 A 148 147 0.25      
33 A 87 87 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 24290.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 24156.5 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 BLYP/3-21G
ABC
0.33137 0.10517 0.08375

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.396 0.512 0.001
C2 1.511 -1.036 -0.001
C3 -0.050 1.031 -0.001
C4 -1.129 0.277 -0.001
C5 -2.211 -0.470 0.001
H6 1.915 0.926 -0.884
H7 1.912 0.924 0.890
H8 1.020 -1.460 0.890
H9 2.570 -1.341 0.001
H10 1.023 -1.458 -0.894
H11 -0.163 2.123 -0.002
H12 -2.687 -0.797 0.931
H13 -2.688 -0.801 -0.928

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55191.53622.53543.73771.10701.10702.19562.19402.19542.24184.38714.3889
C21.55192.59002.94833.76442.18942.18941.10191.10241.10183.57514.30694.3065
C31.53622.59001.31562.63062.15752.15742.85393.53462.85351.09833.34083.3424
C42.53542.94831.31561.31503.23533.23382.90384.03762.90472.08352.10992.1100
C53.73773.76442.63061.31504.44494.44183.49444.85973.49753.30451.09541.0953
H61.10702.18942.15753.23534.44491.77373.10552.52062.54562.55535.23894.9167
H71.10702.18942.15743.23384.44181.77372.54552.52083.10542.55704.91055.2380
H82.19561.10192.85392.90383.49443.10552.54551.79091.78373.87793.76654.1823
H92.19401.10243.53464.03764.85972.52062.52081.79091.79094.41285.36675.3668
H102.19541.10182.85352.90473.49752.54563.10541.78371.79093.87634.18723.7687
H112.24183.57511.09832.08353.30452.55532.55703.87794.41283.87633.97113.9728
H124.38714.30693.34082.10991.09545.23894.91053.76655.36674.18723.97111.8596
H134.38894.30653.34242.11001.09534.91675.23804.18235.36683.76873.97281.8596

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 110.503 C1 C2 H9 110.347
C1 C2 H10 110.490 C1 C3 C4 125.324
C1 C3 H11 115.619 C2 C1 C3 113.997
C2 C1 H6 109.724 C2 C1 H7 109.721
C3 C1 H6 108.325 C3 C1 H7 108.314
C3 C4 C5 179.683 C4 C3 H11 119.057
C4 C5 H12 121.903 C4 C5 H13 121.920
H6 C1 H7 106.475 H8 C2 H9 108.677
H8 C2 H10 108.078 H9 C2 H10 108.679
H12 C5 H13 116.177
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.382      
2 C -0.520      
3 C -0.295      
4 C 0.189      
5 C -0.480      
6 H 0.189      
7 H 0.189      
8 H 0.185      
9 H 0.172      
10 H 0.185      
11 H 0.186      
12 H 0.190      
13 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.402 0.034 0.002 0.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.032 1.872 -0.002
y 1.872 -31.203 -0.000
z -0.002 -0.000 -32.069
Traceless
 xyz
x 1.604 1.872 -0.002
y 1.872 -0.152 -0.000
z -0.002 -0.000 -1.452
Polar
3z2-r2-2.903
x2-y21.171
xy1.872
xz-0.002
yz-0.000


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> 146.901
(<r2>)1/2 12.120