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

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-194.644146
Energy at 298.15K-194.651671
HF Energy-193.963974
Nuclear repulsion energy154.406306
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 MP2/cc-pVDZ
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 3293 3137 10.30      
2 A 3198 3046 3.47      
3 A 3183 3032 3.52      
4 A 3069 2923 20.27      
5 A 1708 1627 0.70      
6 A 1468 1398 5.41      
7 A 1442 1374 0.18      
8 A 1309 1247 0.11      
9 A 1262 1202 0.09      
10 A 1082 1031 2.60      
11 A 1025 977 12.50      
12 A 929 885 33.62      
13 A 923 879 0.80      
14 A 683 651 9.11      
15 A 369 351 0.41      
16 A 302 288 0.12      
17 A 88 84 0.02      
18 A 3293 3137 13.10      
19 A 3197 3045 9.17      
20 A 3184 3032 17.00      
21 A 3130 2981 12.32      
22 A 1699 1618 11.64      
23 A 1452 1383 3.67      
24 A 1322 1260 0.34      
25 A 1290 1228 4.41      
26 A 1179 1123 3.02      
27 A 1027 978 16.74      
28 A 988 941 1.96      
29 A 928 884 29.76      
30 A 893 851 6.18      
31 A 611 582 10.07      
32 A 451 430 2.47      
33 A 102 97 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25038.5 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 23849.2 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 MP2/cc-pVDZ
ABC
0.63773 0.07831 0.07776

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.684
C2 0.000 1.247 -0.169
C3 0.000 -1.247 -0.169
C4 0.998 2.153 -0.193
C5 -0.998 -2.153 -0.193
H6 -0.892 -0.011 1.338
H7 0.892 0.011 1.338
H8 -0.873 1.388 -0.821
H9 0.873 -1.388 -0.821
H10 0.953 3.032 -0.842
H11 -0.953 -3.032 -0.842
H12 1.884 2.035 0.442
H13 -1.884 -2.035 0.442

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51011.51012.52932.52931.10581.10582.22532.22533.52573.52572.78362.7836
C21.51012.49301.34793.54262.15542.14261.09892.85092.13304.43502.13143.8327
C31.51012.49303.54261.34792.14262.15542.85091.09894.43502.13303.83272.1314
C42.52931.34793.54264.74513.25462.63432.11653.59791.09435.57751.09615.1226
C52.52933.54261.34794.74512.63433.25463.59792.11655.57751.09435.12261.0961
H61.10582.15542.14263.25462.63431.78352.57203.10954.17303.72603.56252.4256
H71.10582.14262.15542.63433.25461.78353.10952.57203.72604.17302.42563.5625
H82.22531.09892.85092.11653.59792.57203.10953.27972.45744.42103.10053.7857
H92.22532.85091.09893.59792.11653.10952.57203.27974.42102.45743.78573.1005
H103.52572.13304.43501.09435.57754.17303.72602.45744.42106.35691.87335.9474
H113.52574.43502.13305.57751.09433.72604.17304.42102.45746.35695.94741.8733
H122.78362.13143.83271.09615.12263.56252.42563.10053.78571.87335.94745.5461
H132.78363.83272.13145.12261.09612.42563.56253.78573.10055.94741.87335.5461

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 124.396 C1 C2 H8 116.172
C1 C3 C5 124.396 C1 C3 H9 116.172
C2 C1 C3 111.264 C2 C1 H6 110.001
C2 C1 H7 109.003 C2 C4 H10 121.365
C2 C4 H12 121.059 C3 C1 H6 109.003
C3 C1 H7 110.001 C3 C5 H11 121.365
C3 C5 H13 121.059 C4 C2 H8 119.417
C5 C3 H9 119.417 H6 C1 H7 107.492
H10 C4 H12 117.576 H11 C5 H13 117.576
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.043      
2 C -0.147      
3 C -0.147      
4 C -0.043      
5 C -0.043      
6 H 0.040      
7 H 0.040      
8 H 0.035      
9 H 0.035      
10 H 0.051      
11 H 0.051      
12 H 0.042      
13 H 0.042      


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 0.064 0.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.199 0.915 0.000
y 0.915 -32.566 0.000
z 0.000 0.000 -33.099
Traceless
 xyz
x 1.634 0.915 0.000
y 0.915 -0.417 0.000
z 0.000 0.000 -1.217
Polar
3z2-r2-2.434
x2-y21.368
xy0.915
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.194 2.774 0.000
y 2.774 9.786 0.000
z 0.000 0.000 5.813


<r2> (average value of r2) Å2
<r2> 159.142
(<r2>)1/2 12.615