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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-195.227999
Energy at 298.15K-195.234914
Nuclear repulsion energy151.109124
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 3028 23.71      
2 A 3009 3002 7.92      
3 A 2980 2973 32.52      
4 A 2943 2935 8.52      
5 A 1489 1485 3.45      
6 A 1467 1463 6.43      
7 A 1411 1408 0.20      
8 A 1381 1378 2.14      
9 A 1138 1135 0.06      
10 A 1067 1064 1.30      
11 A 1034 1031 0.00      
12 A 870 867 22.60      
13 A 799 797 0.02      
14 A 522 521 3.55      
15 A 285 285 1.03      
16 A 174 173 0.00      
17 A 134 134 1.76      
18 A 3036 3028 51.24      
19 A 3007 3000 11.68      
20 A 2980 2973 31.63      
21 A 2941 2934 95.21      
22 A 1989 1984 7.96      
23 A 1475 1471 9.25      
24 A 1466 1462 6.72      
25 A 1378 1374 5.28      
26 A 1290 1287 21.90      
27 A 1068 1066 2.86      
28 A 1029 1026 0.45      
29 A 931 929 13.30      
30 A 680 678 17.49      
31 A 556 555 11.99      
32 A 219 218 0.67      
33 A 157 156 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 23969.9 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 23910.0 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 BLYP/6-311G*
ABC
0.57517 0.07303 0.07065

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 -0.877 2.196 -0.460
C5 0.877 -2.196 -0.460
H6 0.683 1.838 1.096
H7 -0.683 -1.838 1.096
H8 -1.515 2.850 0.156
H9 -0.264 2.856 -1.096
H10 -1.527 1.599 -1.112
H11 1.515 -2.850 0.156
H12 0.264 -2.856 -1.096
H13 1.527 -1.599 -1.112

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31431.31432.52052.52052.07622.07623.23803.24102.68593.23803.24102.6859
C21.31432.62871.51933.72201.09843.29692.17262.17342.17714.43894.44303.6255
C31.31432.62873.72201.51933.29691.09844.43894.44303.62552.17262.17342.1771
C42.52051.51933.72204.72912.23174.32791.10251.10241.09785.61825.21854.5392
C52.52053.72201.51934.72914.32792.23175.61825.21854.53921.10251.10241.0978
H62.07621.09843.29692.23174.32793.92152.59562.59533.13314.85325.19754.1712
H72.07623.29691.09844.32792.23173.92154.85325.19754.17122.59562.59533.1331
H83.23802.17264.43891.10255.61822.59564.85321.76991.78216.45566.10725.5370
H93.24102.17344.44301.10245.21852.59535.19751.76991.78246.10725.73714.8019
H102.68592.17713.62551.09784.53923.13314.17121.78211.78245.53704.80194.4219
H113.23804.43892.17265.61821.10254.85322.59566.45566.10725.53701.76991.7821
H123.24104.44302.17345.21851.10245.19752.59536.10725.73714.80191.76991.7824
H132.68593.62552.17714.53921.09784.17123.13315.53704.80194.42191.78211.7824

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 125.466 C1 C2 H6 118.481
C1 C3 C5 125.466 C1 C3 H7 118.481
C2 C1 C3 179.990 C2 C4 H8 110.925
C2 C4 H9 110.992 C2 C4 H10 111.569
C3 C5 H11 110.925 C3 C5 H12 110.992
C3 C5 H13 111.569 C4 C2 H6 116.053
C5 C3 H7 116.053 H8 C4 H9 106.782
H8 C4 H10 108.177 H9 C4 H10 108.213
H11 C5 H12 106.782 H11 C5 H13 108.177
H12 C5 H13 108.213
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.149      
2 C -0.273      
3 C -0.273      
4 C -0.605      
5 C -0.605      
6 H 0.188      
7 H 0.188      
8 H 0.204      
9 H 0.204      
10 H 0.207      
11 H 0.204      
12 H 0.204      
13 H 0.207      


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 -0.165 0.165
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.675 -0.107 0.000
y -0.107 -28.675 0.000
z 0.000 0.000 -32.817
Traceless
 xyz
x -1.929 -0.107 0.000
y -0.107 4.071 0.000
z 0.000 0.000 -2.142
Polar
3z2-r2-4.283
x2-y2-4.000
xy-0.107
xz0.000
yz0.000


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> 175.123
(<r2>)1/2 13.233