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All results from a given calculation for C5H8 (1,2-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-195.235061
Energy at 298.15K-195.242225
Nuclear repulsion energy155.210478
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 3092 3080 7.23      
2 A 3030 3018 10.47      
3 A 3022 3010 16.19      
4 A 3021 3009 37.27      
5 A 3020 3008 37.35      
6 A 2961 2949 24.07      
7 A 2938 2927 22.43      
8 A 2924 2913 40.44      
9 A 1982 1975 28.67      
10 A 1470 1465 4.95      
11 A 1461 1455 7.40      
12 A 1451 1446 0.14      
13 A 1435 1430 5.25      
14 A 1380 1375 3.98      
15 A 1342 1336 15.23      
16 A 1293 1288 1.95      
17 A 1255 1251 0.07      
18 A 1122 1118 1.04      
19 A 1073 1069 1.85      
20 A 1053 1048 2.86      
21 A 996 992 0.14      
22 A 969 966 0.33      
23 A 874 870 13.92      
24 A 834 830 50.79      
25 A 811 808 2.70      
26 A 774 771 2.79      
27 A 618 615 2.87      
28 A 508 506 4.13      
29 A 350 348 3.55      
30 A 322 321 6.70      
31 A 235 234 0.05      
32 A 147 147 0.34      
33 A 95 95 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 23929.8 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 23836.4 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
0.33898 0.10347 0.08309

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.381 0.517 0.001
C2 1.552 -1.013 -0.001
C3 -0.062 1.012 -0.001
C4 -1.142 0.263 -0.001
C5 -2.226 -0.477 0.001
H6 1.894 0.952 -0.875
H7 1.890 0.949 0.881
H8 1.083 -1.467 0.884
H9 2.618 -1.283 0.003
H10 1.090 -1.464 -0.890
H11 -0.192 2.101 -0.002
H12 -2.700 -0.798 0.932
H13 -2.701 -0.802 -0.929

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53931.52532.53483.74071.10431.10442.19142.18382.19152.23204.38694.3890
C21.53932.58962.98103.81592.17732.17731.09931.09941.09933.56894.35864.3587
C31.52532.58961.31332.62612.14292.14272.87013.52812.87171.09663.33193.3335
C42.53482.98101.31331.31283.23243.23072.95404.06522.95842.06802.10372.1039
C53.74073.81592.62611.31284.44704.44363.56484.91053.57203.28311.09321.0932
H61.10432.17732.14293.23244.44701.75533.09832.50752.54632.53585.23684.9182
H71.10442.17732.14273.23074.44361.75532.54732.50633.09832.53754.91125.2360
H82.19141.09932.87012.95403.56483.09832.54731.77951.77363.89073.84194.2482
H92.18381.09943.52814.06524.91052.50752.50631.77951.77954.39805.42035.4217
H102.19151.09932.87172.95843.57202.54633.09831.77361.77953.89074.25713.8485
H112.23203.56891.09662.06803.28312.53582.53753.89074.39803.89073.94493.9467
H124.38694.35863.33192.10371.09325.23684.91123.84195.42034.25713.94491.8605
H134.38904.35873.33352.10391.09324.91825.23604.24825.42173.84853.94671.8605

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 111.209 C1 C2 H9 110.597
C1 C2 H10 111.214 C1 C3 C4 126.339
C1 C3 H11 115.730 C2 C1 C3 115.338
C2 C1 H6 109.799 C2 C1 H7 109.797
C3 C1 H6 108.087 C3 C1 H7 108.070
C3 C4 C5 179.581 C4 C3 H11 117.931
C4 C5 H12 121.671 C4 C5 H13 121.696
H6 C1 H7 105.253 H8 C2 H9 108.064
H8 C2 H10 107.551 H9 C2 H10 108.065
H12 C5 H13 116.633
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 -0.186      
2 C -0.297      
3 C -0.163      
4 C 0.023      
5 C -0.262      
6 H 0.112      
7 H 0.112      
8 H 0.109      
9 H 0.100      
10 H 0.109      
11 H 0.111      
12 H 0.116      
13 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.432 0.087 0.002 0.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.798 1.771 -0.002
y 1.771 -32.000 0.000
z -0.002 0.000 -32.463
Traceless
 xyz
x 1.434 1.771 -0.002
y 1.771 -0.370 0.000
z -0.002 0.000 -1.064
Polar
3z2-r2-2.128
x2-y21.202
xy1.771
xz-0.002
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.094 2.273 -0.000
y 2.273 8.336 -0.001
z -0.000 -0.001 6.197


<r2> (average value of r2) Å2
<r2> 148.250
(<r2>)1/2 12.176