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All results from a given calculation for C5H8 (1,3-Butadiene, 2-methyl-)

using model chemistry: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-194.031129
Energy at 298.15K-194.039134
HF Energy-194.031129
Nuclear repulsion energy161.354977
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 HF/daug-cc-pVTZ
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' 3372 3050 16.34      
2 A' 3362 3041 14.25      
3 A' 3304 2988 5.39      
4 A' 3290 2976 13.62      
5 A' 3283 2970 3.80      
6 A' 3244 2934 24.88      
7 A' 3162 2860 26.25      
8 A' 1852 1675 2.12      
9 A' 1791 1620 45.13      
10 A' 1621 1466 6.42      
11 A' 1580 1430 1.46      
12 A' 1551 1403 2.58      
13 A' 1530 1384 2.58      
14 A' 1432 1296 0.67      
15 A' 1429 1293 0.74      
16 A' 1178 1066 4.12      
17 A' 1094 989 0.09      
18 A' 1030 932 0.46      
19 A' 829 750 0.38      
20 A' 569 515 0.01      
21 A' 458 414 2.06      
22 A' 299 270 1.40      
23 A" 3208 2902 23.28      
24 A" 1601 1448 7.32      
25 A" 1166 1055 0.00      
26 A" 1134 1026 13.23      
27 A" 1066 964 62.61      
28 A" 1051 951 40.71      
29 A" 859 777 0.64      
30 A" 707 640 0.19      
31 A" 443 401 12.58      
32 A" 232 210 0.24      
33 A" 160 145 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 26442.9 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 23920.2 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 HF/daug-cc-pVTZ
ABC
0.28720 0.14057 0.09603

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.595 1.709 0.000
C2 0.000 0.527 0.000
C3 -0.820 -0.697 0.000
C4 -0.367 -1.937 0.000
C5 1.499 0.395 0.000
H6 -1.665 1.798 0.000
H7 -0.034 2.624 0.000
H8 -1.884 -0.537 0.000
H9 0.680 -2.170 0.000
H10 -1.044 -2.769 0.000
H11 1.970 1.367 0.000
H12 1.840 -0.148 0.874
H13 1.840 -0.148 -0.874

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.32322.41703.65352.47211.07401.07352.58974.08374.50122.58733.18483.1848
C21.32321.47402.49171.50452.09462.09712.16382.78213.45842.14132.14602.1460
C32.41701.47401.32012.56312.63443.41341.07572.10272.08433.47082.85312.8531
C43.65352.49171.32012.98643.95424.57352.06431.07301.07324.04722.97202.9720
C52.47211.50452.56312.98643.46122.70543.50852.69234.05951.08071.08421.0842
H61.07402.09462.63443.95423.46121.82902.34504.60964.60943.66044.10334.1033
H71.07352.09713.41344.57352.70541.82903.66284.84745.48762.36493.45863.4586
H82.58972.16381.07572.06433.50852.34503.66283.04022.38524.29843.84443.8444
H94.08372.78212.10271.07302.69234.60964.84743.04021.82593.76532.48902.4890
H104.50123.45842.08431.07324.05954.60945.48762.38521.82595.11843.99393.9939
H112.58732.14133.47084.04721.08073.66042.36494.29843.76535.11841.75481.7548
H123.18482.14602.85312.97201.08424.10333.45863.84442.48903.99391.75481.7483
H133.18482.14602.85312.97201.08424.10333.45863.84442.48903.99391.75481.7483

picture of 1,3-Butadiene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.464 C1 C2 C5 121.784
C2 C1 H6 121.457 C2 C1 H7 121.748
C2 C3 C4 126.110 C2 C3 H8 115.240
C2 C5 H11 110.775 C2 C5 H12 110.942
C2 C5 H13 110.942 C3 C2 C5 118.752
C3 C4 H9 122.625 C3 C4 H10 120.783
C4 C3 H8 118.650 H6 C1 H7 116.795
H9 C4 H10 116.592 H11 C5 H12 108.296
H11 C5 H13 108.296 H12 C5 H13 107.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -2.816      
2 C 2.868      
3 C 0.230      
4 C -2.116      
5 C -0.971      
6 H 0.466      
7 H 0.472      
8 H 0.305      
9 H 0.579      
10 H 0.199      
11 H 0.314      
12 H 0.235      
13 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.273 -0.022 0.000 0.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.883 -0.047 0.000
y -0.047 -30.323 0.000
z 0.000 0.000 -35.733
Traceless
 xyz
x 3.145 -0.047 0.000
y -0.047 2.485 0.000
z 0.000 0.000 -5.630
Polar
3z2-r2-11.259
x2-y20.440
xy-0.047
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.787 -1.112 0.000
y -1.112 13.564 0.000
z 0.000 0.000 6.690


<r2> (average value of r2) Å2
<r2> 130.738
(<r2>)1/2 11.434