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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-32.962055
Energy at 298.15K-32.969390
Nuclear repulsion energy84.226629
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3169 3088 14.70      
2 A 3088 3009 19.25      
3 A 3083 3004 18.00      
4 A 3081 3002 56.04      
5 A 3077 2999 55.39      
6 A 3003 2927 28.59      
7 A 2992 2915 29.11      
8 A 2970 2894 57.92      
9 A 2008 1957 34.62      
10 A 1525 1486 7.00      
11 A 1518 1479 9.07      
12 A 1512 1474 0.64      
13 A 1480 1443 5.45      
14 A 1435 1398 6.50      
15 A 1385 1350 14.01      
16 A 1339 1305 1.74      
17 A 1285 1253 0.27      
18 A 1153 1124 1.54      
19 A 1114 1086 2.90      
20 A 1093 1065 2.86      
21 A 1044 1017 0.01      
22 A 997 971 1.26      
23 A 911 888 17.86      
24 A 900 877 72.43      
25 A 836 815 2.35      
26 A 798 778 4.53      
27 A 636 620 4.43      
28 A 532 519 3.95      
29 A 361 352 4.50      
30 A 350 341 9.86      
31 A 236 230 0.06      
32 A 150 146 0.55      
33 A 88 85 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 24574.7 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 23948.0 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 B3LYP/CEP-121G
ABC
0.33323 0.10303 0.08245

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.365 0.526 0.001
C2 -1.498 -1.016 -0.000
C3 0.078 1.050 -0.001
C4 1.176 0.305 0.001
C5 2.275 -0.438 0.000
H6 -1.880 0.944 0.881
H7 -1.883 0.945 -0.877
H8 -1.022 -1.453 -0.888
H9 -2.555 -1.311 0.002
H10 -1.018 -1.455 0.884
H11 0.190 2.138 -0.003
H12 2.749 -0.758 -0.928
H13 2.752 -0.755 0.928

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54751.53452.55003.76491.10241.10242.19632.18902.19642.23994.40854.4100
C21.54752.59812.98213.81662.18272.18281.09771.09811.09773.57754.35474.3577
C31.53452.59811.32702.65372.15002.15002.87433.53652.87391.09423.35653.3579
C42.55002.98211.32701.32673.24373.24632.95164.06622.94802.08152.11402.1141
C53.76493.81662.65371.32674.46644.46923.56224.90863.55773.31431.09061.0906
H61.10242.18272.15003.24374.46641.75783.10022.51262.54932.54845.25364.9341
H71.10242.18282.15003.24634.46921.75782.54882.51313.10042.54634.93615.2571
H82.19631.09772.87432.95163.56223.10022.54881.77851.77173.89243.83494.2459
H92.18901.09813.53654.06624.90862.51262.51311.77851.77854.40855.41385.4162
H102.19641.09772.87392.94803.55772.54933.10041.77171.77853.89354.23783.8344
H112.23993.57751.09422.08153.31432.54842.54633.89244.40853.89353.97423.9757
H124.40854.35473.35652.11401.09065.25364.93613.83495.41384.23783.97421.8562
H134.41004.35773.35792.11411.09064.93415.25714.24595.41623.83443.97571.8562

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 111.112 C1 C2 H9 110.514
C1 C2 H10 111.123 C1 C3 C4 125.878
C1 C3 H11 115.867 C2 C1 C3 114.908
C2 C1 H6 109.768 C2 C1 H7 109.774
C3 C1 H6 108.119 C3 C1 H7 108.121
C3 C4 C5 179.866 C4 C3 H11 118.254
C4 C5 H12 121.670 C4 C5 H13 121.682
H6 C1 H7 105.736 H8 C2 H9 108.183
H8 C2 H10 107.601 H9 C2 H10 108.182
H12 C5 H13 116.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.248      
2 C -0.472      
3 C -0.276      
4 C 0.399      
5 C -0.578      
6 H 0.143      
7 H 0.143      
8 H 0.151      
9 H 0.141      
10 H 0.151      
11 H 0.158      
12 H 0.146      
13 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.509 0.071 -0.001 0.514
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.759 -1.867 0.000
y -1.867 -31.872 -0.001
z 0.000 -0.001 -32.309
Traceless
 xyz
x 1.332 -1.867 0.000
y -1.867 -0.338 -0.001
z 0.000 -0.001 -0.993
Polar
3z2-r2-1.986
x2-y21.113
xy-1.867
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.135 -2.499 -0.004
y -2.499 8.246 -0.003
z -0.004 -0.003 6.139


<r2> (average value of r2) Å2
<r2> 122.374
(<r2>)1/2 11.062