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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-194.170905
Energy at 298.15K-194.178312
Nuclear repulsion energy156.977103
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 mPW1PW91/3-21G
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 3230 3084 3.33      
2 A 3163 3020 6.50      
3 A 3159 3016 22.78      
4 A 3158 3015 4.82      
5 A 3156 3013 22.44      
6 A 3088 2948 11.54      
7 A 3080 2940 15.45      
8 A 3058 2919 24.68      
9 A 2102 2006 27.07      
10 A 1568 1497 7.26      
11 A 1563 1492 10.01      
12 A 1544 1474 0.29      
13 A 1524 1455 5.88      
14 A 1465 1399 11.40      
15 A 1421 1356 7.04      
16 A 1358 1296 4.89      
17 A 1335 1274 0.02      
18 A 1184 1130 1.02      
19 A 1143 1091 2.77      
20 A 1114 1063 3.91      
21 A 1073 1024 0.64      
22 A 1024 977 1.89      
23 A 929 887 18.45      
24 A 921 879 78.95      
25 A 856 817 2.19      
26 A 822 785 7.45      
27 A 649 619 1.75      
28 A 537 513 6.80      
29 A 370 353 4.34      
30 A 332 317 8.26      
31 A 255 243 0.09      
32 A 155 148 0.41      
33 A 99 94 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 25216.3 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 24071.5 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 mPW1PW91/3-21G
ABC
0.33535 0.10929 0.08655

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.388 0.495 0.000
C2 1.455 -1.036 -0.000
C3 -0.031 1.030 0.000
C4 -1.103 0.286 -0.001
C5 -2.175 -0.457 0.000
H6 1.910 0.892 -0.881
H7 1.910 0.892 0.881
H8 0.955 -1.440 0.885
H9 2.496 -1.375 -0.001
H10 0.954 -1.440 -0.885
H11 -0.142 2.114 0.000
H12 -2.643 -0.779 0.926
H13 -2.645 -0.780 -0.924

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53261.51632.49923.68761.09851.09852.17142.17412.17162.22744.32764.3293
C21.53262.54552.87953.67652.16782.16801.09411.09421.09423.53204.20974.2111
C31.51632.54551.30492.60912.13622.13642.80333.48892.80311.08943.30983.3113
C42.49922.87951.30491.30423.19673.19752.82823.96342.82692.06512.08972.0898
C53.68763.67652.60911.30424.39124.39143.39834.76033.39763.27721.08661.0866
H61.09852.16782.13623.19674.39121.76213.07722.50182.52032.54605.17584.8523
H71.09852.16802.13643.19754.39141.76212.52002.50223.07752.54604.85055.1775
H82.17141.09412.80332.82823.39833.07722.52001.77821.77003.82343.65854.0830
H92.17411.09423.48893.96344.76032.50182.50221.77821.77824.37435.25555.2569
H102.17161.09422.80312.82693.39762.52033.07751.77001.77823.82334.08133.6595
H112.22743.53201.08942.06513.27722.54602.54603.82344.37433.82333.93473.9363
H124.32764.20973.30982.08971.08665.17584.85053.65855.25554.08133.93471.8508
H134.32934.21113.31132.08981.08664.85235.17754.08305.25693.65953.93631.8508

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 110.402 C1 C2 H9 110.606
C1 C2 H10 110.414 C1 C3 C4 124.545
C1 C3 H11 116.525 C2 C1 C3 113.203
C2 C1 H6 109.861 C2 C1 H7 109.871
C3 C1 H6 108.508 C3 C1 H7 108.519
C3 C4 C5 179.859 C4 C3 H11 118.931
C4 C5 H12 121.599 C4 C5 H13 121.614
H6 C1 H7 106.655 H8 C2 H9 108.695
H8 C2 H10 107.962 H9 C2 H10 108.693
H12 C5 H13 116.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.479      
2 C -0.627      
3 C -0.326      
4 C 0.139      
5 C -0.537      
6 H 0.232      
7 H 0.232      
8 H 0.224      
9 H 0.212      
10 H 0.224      
11 H 0.238      
12 H 0.234      
13 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.380 0.017 0.001 0.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.611 2.091 -0.001
y 2.091 -30.938 0.000
z -0.001 0.000 -31.952
Traceless
 xyz
x 1.834 2.091 -0.001
y 2.091 -0.157 0.000
z -0.001 0.000 -1.677
Polar
3z2-r2-3.355
x2-y21.327
xy2.091
xz-0.001
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> 142.727
(<r2>)1/2 11.947