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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: BLYP/6-311G**

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/6-311G**
 hartrees
Energy at 0K-195.239557
Energy at 298.15K-195.246478
Nuclear repulsion energy151.149310
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/6-311G**
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 3036 3025 21.52      
2 A 3014 3002 5.06      
3 A 2980 2968 28.14      
4 A 2941 2930 7.88      
5 A 1474 1468 3.16      
6 A 1450 1444 5.76      
7 A 1402 1396 0.12      
8 A 1367 1362 1.76      
9 A 1134 1129 0.04      
10 A 1059 1055 1.53      
11 A 1026 1022 0.01      
12 A 871 867 21.70      
13 A 797 794 0.04      
14 A 522 520 3.79      
15 A 286 285 1.00      
16 A 172 172 0.00      
17 A 134 133 1.79      
18 A 3037 3025 44.75      
19 A 3011 3000 6.51      
20 A 2980 2968 27.59      
21 A 2940 2928 87.30      
22 A 1988 1980 9.06      
23 A 1458 1453 8.67      
24 A 1449 1444 6.03      
25 A 1364 1359 5.65      
26 A 1279 1274 21.31      
27 A 1061 1057 2.68      
28 A 1022 1018 0.45      
29 A 928 924 14.40      
30 A 683 681 16.47      
31 A 555 553 12.34      
32 A 219 218 0.70      
33 A 155 155 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 23895.6 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 23802.4 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/6-311G**
ABC
0.57436 0.07311 0.07072

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.413
C2 0.000 1.314 0.413
C3 0.000 -1.314 0.413
C4 -0.878 2.194 -0.461
C5 0.878 -2.194 -0.461
H6 0.682 1.837 1.096
H7 -0.682 -1.837 1.096
H8 -1.516 2.847 0.157
H9 -0.265 2.853 -1.097
H10 -1.527 1.593 -1.110
H11 1.516 -2.847 0.157
H12 0.265 -2.853 -1.097
H13 1.527 -1.593 -1.110

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31431.31432.51982.51982.07482.07483.23593.23862.68103.23593.23862.6810
C21.31432.62861.51993.72091.09703.29542.17132.17212.17494.43654.44033.6197
C31.31432.62863.72091.51993.29541.09704.43654.44033.61972.17132.17212.1749
C42.51981.51993.72094.72692.23264.32551.10211.10211.09735.61535.21394.5328
C52.51983.72091.51994.72694.32552.23265.61535.21394.53281.10211.10211.0973
H62.07481.09703.29542.23264.32553.91852.59492.59533.13114.84955.19364.1642
H72.07483.29541.09704.32552.23263.91854.84955.19364.16422.59492.59533.1311
H83.23592.17134.43651.10215.61532.59494.84951.77111.78326.45156.10215.5297
H93.23862.17214.44031.10215.21392.59535.19361.77111.78356.10215.73034.7930
H102.68102.17493.61971.09734.53283.13114.16421.78321.78355.52974.79304.4125
H113.23594.43652.17135.61531.10214.84952.59496.45156.10215.52971.77111.7832
H123.23864.44032.17215.21391.10215.19362.59536.10215.73034.79301.77111.7835
H132.68103.61972.17494.53281.09734.16423.13115.52974.79304.41251.78321.7835

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.362 C1 C2 H6 118.456
C1 C3 C5 125.362 C1 C3 H7 118.456
C2 C1 C3 179.970 C2 C4 H8 110.803
C2 C4 H9 110.869 C2 C4 H10 111.381
C3 C5 H11 110.803 C3 C5 H12 110.869
C3 C5 H13 111.381 C4 C2 H6 116.182
C5 C3 H7 116.182 H8 C4 H9 106.930
H8 C4 H10 108.337 H9 C4 H10 108.365
H11 C5 H12 106.930 H11 C5 H13 108.337
H12 C5 H13 108.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.048      
2 C -0.195      
3 C -0.195      
4 C -0.266      
5 C -0.266      
6 H 0.107      
7 H 0.107      
8 H 0.111      
9 H 0.110      
10 H 0.109      
11 H 0.111      
12 H 0.110      
13 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.180 0.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.601 -0.180 0.000
y -0.180 -28.563 0.000
z 0.000 0.000 -32.754
Traceless
 xyz
x -1.942 -0.180 0.000
y -0.180 4.114 0.000
z 0.000 0.000 -2.172
Polar
3z2-r2-4.344
x2-y2-4.038
xy-0.180
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.754 -1.236 0.000
y -1.236 14.597 0.000
z 0.000 0.000 6.607


<r2> (average value of r2) Å2
<r2> 174.898
(<r2>)1/2 13.225