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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-195.224877
Energy at 298.15K-195.232186
Nuclear repulsion energy156.461857
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 B3PW91/6-31G**
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 3221 3087 4.28      
2 A 3146 3015 7.05      
3 A 3144 3013 11.24      
4 A 3142 3012 27.63      
5 A 3142 3011 27.64      
6 A 3060 2933 19.75      
7 A 3060 2933 20.08      
8 A 3030 2904 37.34      
9 A 2082 1995 29.37      
10 A 1511 1448 5.56      
11 A 1502 1439 7.03      
12 A 1497 1435 0.58      
13 A 1482 1420 3.14      
14 A 1423 1364 4.80      
15 A 1375 1318 14.18      
16 A 1353 1297 2.16      
17 A 1288 1234 0.02      
18 A 1161 1113 1.74      
19 A 1102 1056 2.24      
20 A 1095 1050 3.16      
21 A 1022 979 0.00      
22 A 1004 962 0.74      
23 A 904 867 13.43      
24 A 870 834 49.29      
25 A 861 825 9.40      
26 A 791 758 3.69      
27 A 641 614 1.82      
28 A 526 504 4.54      
29 A 363 348 2.84      
30 A 345 331 5.58      
31 A 246 236 0.08      
32 A 151 145 0.23      
33 A 99 95 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 24818.6 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 23786.2 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 B3PW91/6-31G**
ABC
0.34236 0.10602 0.08490

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.377 0.504 0.001
C2 1.514 -1.013 -0.001
C3 -0.045 1.011 -0.001
C4 -1.123 0.268 -0.001
C5 -2.206 -0.465 0.001
H6 1.895 0.929 -0.870
H7 1.891 0.926 0.877
H8 1.035 -1.453 0.879
H9 2.567 -1.309 0.002
H10 1.040 -1.450 -0.885
H11 -0.174 2.095 -0.003
H12 -2.677 -0.781 0.929
H13 -2.678 -0.785 -0.926

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52341.50992.51093.71111.09931.09932.17222.16862.17202.22204.35254.3544
C21.52342.55502.93143.75942.16182.16191.09431.09411.09433.53684.29874.2981
C31.50992.55501.30892.61632.12742.12742.83083.49372.83111.09143.31673.3183
C42.51092.93141.30891.30743.20903.20722.89714.01272.89982.05822.09302.0932
C53.71113.75942.61631.30744.41744.41393.49964.84663.50513.26751.08811.0881
H61.09932.16182.12743.20904.41741.74683.07822.49402.52812.52835.20204.8835
H71.09932.16192.12743.20724.41391.74682.52882.49373.07812.53064.87655.2008
H82.17221.09432.83082.89713.49963.07822.52881.77181.76433.85073.77224.1815
H92.16861.09413.49374.01274.84662.49402.49371.77181.77184.37035.35145.3516
H102.17201.09432.83112.89983.50512.52813.07811.76431.77183.84934.18943.7763
H112.22203.53681.09142.05823.26752.52832.53063.85074.37033.84933.92423.9259
H124.35254.29873.31672.09301.08815.20204.87653.77225.35144.18943.92421.8549
H134.35444.29813.31832.09321.08814.88355.20084.18155.35163.77633.92591.8549

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 111.100 C1 C2 H9 110.825
C1 C2 H10 111.084 C1 C3 C4 125.793
C1 C3 H11 116.418 C2 C1 C3 114.771
C2 C1 H6 109.979 C2 C1 H7 109.986
C3 C1 H6 108.218 C3 C1 H7 108.215
C3 C4 C5 179.500 C4 C3 H11 117.788
C4 C5 H12 121.517 C4 C5 H13 121.540
H6 C1 H7 105.217 H8 C2 H9 108.122
H8 C2 H10 107.446 H9 C2 H10 108.122
H12 C5 H13 116.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.250      
2 C -0.396      
3 C -0.284      
4 C 0.284      
5 C -0.466      
6 H 0.138      
7 H 0.138      
8 H 0.139      
9 H 0.126      
10 H 0.139      
11 H 0.140      
12 H 0.146      
13 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.425 0.066 0.002 0.430
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.675 1.745 -0.002
y 1.745 -30.793 -0.000
z -0.002 -0.000 -31.375
Traceless
 xyz
x 1.409 1.745 -0.002
y 1.745 -0.268 -0.000
z -0.002 -0.000 -1.141
Polar
3z2-r2-2.282
x2-y21.118
xy1.745
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> 144.888
(<r2>)1/2 12.037