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All results from a given calculation for C5H8 (1,4-Pentadiene)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-195.143861
Energy at 298.15K-195.151324
Nuclear repulsion energy153.336734
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/6-31G
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 3161 3137 28.75      
2 A 3079 3056 0.93      
3 A 3068 3044 13.96      
4 A 2935 2912 29.73      
5 A 1669 1657 0.53      
6 A 1482 1470 6.45      
7 A 1456 1444 0.16      
8 A 1317 1307 0.00      
9 A 1253 1244 0.03      
10 A 1080 1072 0.43      
11 A 1013 1005 10.01      
12 A 933 926 43.04      
13 A 895 888 4.34      
14 A 664 659 7.83      
15 A 371 368 0.40      
16 A 297 295 0.14      
17 A 87 87 0.01      
18 A 3160 3136 36.28      
19 A 3079 3056 14.70      
20 A 3068 3044 38.39      
21 A 2974 2952 20.97      
22 A 1653 1640 19.31      
23 A 1451 1440 1.92      
24 A 1322 1312 0.02      
25 A 1311 1301 5.39      
26 A 1157 1149 2.45      
27 A 1013 1005 13.46      
28 A 946 938 2.72      
29 A 932 925 38.49      
30 A 901 894 11.17      
31 A 603 599 11.18      
32 A 451 448 2.75      
33 A 101 100 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24440.5 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 24254.7 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/6-31G
ABC
0.66280 0.07590 0.07535

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.662
C2 0.000 1.269 -0.185
C3 0.000 -1.269 -0.185
C4 0.966 2.209 -0.170
C5 -0.966 -2.209 -0.170
H6 -0.890 -0.010 1.322
H7 0.890 0.010 1.322
H8 -0.862 1.384 -0.856
H9 0.862 -1.384 -0.856
H10 0.918 3.100 -0.802
H11 -0.918 -3.100 -0.802
H12 1.843 2.124 0.482
H13 -1.843 -2.124 0.482

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52581.52582.55032.55031.10791.10792.22792.22793.54883.54882.81772.8177
C21.52582.53781.34803.60952.16762.15601.09812.86932.13884.50652.13813.9182
C31.52582.53783.60951.34802.15602.16762.86931.09814.50652.13883.91822.1381
C42.55031.34803.60954.82173.25462.65822.11953.65971.09355.66831.09545.2045
C52.55033.60951.34804.82172.65823.25463.65972.11955.66831.09355.20451.0954
H61.10792.16762.15603.25462.65821.78022.58573.11454.17703.74943.56742.4664
H71.10792.15602.16762.65823.25461.78023.11452.58573.74944.17702.46643.5674
H82.22791.09812.86932.11953.65972.58573.11453.26182.47244.48503.10653.8807
H92.22792.86931.09813.65972.11953.11452.58573.26184.48502.47243.88073.1065
H103.54882.13884.50651.09355.66834.17703.74942.47244.48506.46561.85886.0461
H113.54884.50652.13885.66831.09353.74944.17704.48502.47246.46566.04611.8588
H122.81772.13813.91821.09545.20453.56742.46643.10653.88071.85886.04615.6238
H132.81773.91822.13815.20451.09542.46643.56743.88073.10656.04611.85885.6238

picture of 1,4-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 124.991 C1 C2 H8 115.250
C1 C3 C5 124.991 C1 C3 H9 115.250
C2 C1 C3 112.530 C2 C1 H6 109.757
C2 C1 H7 108.862 C2 C4 H10 121.986
C2 C4 H12 121.763 C3 C1 H6 108.862
C3 C1 H7 109.757 C3 C5 H11 121.986
C3 C5 H13 121.763 C4 C2 H8 119.755
C5 C3 H9 119.755 H6 C1 H7 106.916
H10 C4 H12 116.251 H11 C5 H13 116.251
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.317      
2 C -0.010      
3 C -0.010      
4 C -0.267      
5 C -0.267      
6 H 0.124      
7 H 0.124      
8 H 0.101      
9 H 0.101      
10 H 0.107      
11 H 0.107      
12 H 0.104      
13 H 0.104      


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 0.079 0.079
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 0.779 0.715 0.000
y 0.715 -0.202 0.000
z 0.000 0.000 -0.577
Traceless
 xyz
x 1.168 0.715 0.000
y 0.715 -0.303 0.000
z 0.000 0.000 -0.865
Polar
3z2-r2-1.730
x2-y20.981
xy0.715
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.913 3.231 0.000
y 3.231 10.255 0.000
z 0.000 0.000 5.371


<r2> (average value of r2) Å2
<r2> 162.506
(<r2>)1/2 12.748