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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-194.726744
Energy at 298.15K-194.734215
HF Energy-194.013810
Nuclear repulsion energy155.764942
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/TZVP
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 3289 3118 11.16      
2 A 3198 3032 2.95      
3 A 3187 3021 4.10      
4 A 3071 2911 19.56      
5 A 1706 1617 0.67      
6 A 1492 1415 6.27      
7 A 1466 1390 0.53      
8 A 1331 1262 0.31      
9 A 1276 1209 0.03      
10 A 1089 1032 2.83      
11 A 1014 961 20.36      
12 A 927 878 2.80      
13 A 861 816 40.40      
14 A 674 639 11.49      
15 A 376 357 0.48      
16 A 296 281 0.18      
17 A 90 85 0.01      
18 A 3289 3118 14.34      
19 A 3198 3031 7.68      
20 A 3187 3021 19.90      
21 A 3126 2963 12.37      
22 A 1695 1607 16.36      
23 A 1474 1398 3.52      
24 A 1341 1271 0.35      
25 A 1315 1247 3.15      
26 A 1188 1126 2.65      
27 A 1016 963 23.42      
28 A 984 932 2.68      
29 A 903 856 6.64      
30 A 857 813 36.87      
31 A 592 561 11.74      
32 A 453 429 2.31      
33 A 91 86 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 25026.4 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 23722.5 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 MP2/TZVP
ABC
0.64774 0.07967 0.07905

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.682
C2 0.000 1.238 -0.168
C3 0.000 -1.238 -0.168
C4 0.988 2.135 -0.191
C5 -0.988 -2.135 -0.191
H6 -0.883 -0.009 1.328
H7 0.883 0.009 1.328
H8 -0.861 1.371 -0.817
H9 0.861 -1.371 -0.817
H10 0.950 3.000 -0.839
H11 -0.950 -3.000 -0.839
H12 1.861 2.023 0.440
H13 -1.861 -2.023 0.440

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.50151.50152.50902.50901.09401.09402.20592.20593.49513.49512.75922.7592
C21.50152.47581.33423.51432.13812.12801.08642.82262.11134.39472.10923.8031
C31.50152.47583.51431.33422.12802.13812.82261.08644.39472.11133.80312.1092
C42.50901.33423.51434.70423.22512.61542.09603.56301.08165.52631.08345.0791
C52.50903.51431.33424.70422.61543.22513.56302.09605.52631.08165.07911.0834
H61.09402.13812.12803.22512.61541.76532.55013.08174.13603.69463.52752.4090
H71.09402.12802.13812.61543.22511.76533.08172.55013.69464.13602.40903.5275
H82.20591.08642.82262.09603.56302.55013.08173.23772.43634.37193.06843.7539
H92.20592.82261.08643.56302.09603.08172.55013.23774.37192.43633.75393.0684
H103.49512.11134.39471.08165.52634.13603.69462.43634.37196.29391.84965.8961
H113.49514.39472.11135.52631.08163.69464.13604.37192.43636.29395.89611.8496
H122.75922.10923.80311.08345.07913.52752.40903.06843.75391.84965.89615.4971
H132.75923.80312.10925.07911.08342.40903.52753.75393.06845.89611.84965.4971

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 124.340 C1 C2 H8 116.018
C1 C3 C5 124.340 C1 C3 H9 116.018
C2 C1 C3 111.058 C2 C1 H6 109.932
C2 C1 H7 109.139 C2 C4 H10 121.496
C2 C4 H12 121.130 C3 C1 H6 109.139
C3 C1 H7 109.932 C3 C5 H11 121.496
C3 C5 H13 121.130 C4 C2 H8 119.619
C5 C3 H9 119.619 H6 C1 H7 107.573
H10 C4 H12 117.374 H11 C5 H13 117.374
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability