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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-195.261026
Energy at 298.15K-195.268068
Nuclear repulsion energy152.050429
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 mPW1PW91/aug-cc-pVDZ
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 3165 3033 13.11      
2 A 3147 3016 1.23      
3 A 3113 2983 17.12      
4 A 3048 2921 8.02      
5 A 1507 1444 4.34      
6 A 1458 1397 5.91      
7 A 1438 1378 0.24      
8 A 1383 1325 2.69      
9 A 1173 1124 0.00      
10 A 1086 1041 2.12      
11 A 1045 1001 0.52      
12 A 900 862 23.46      
13 A 832 798 0.00      
14 A 530 508 5.94      
15 A 295 283 0.98      
16 A 177 170 0.01      
17 A 137 131 2.37      
18 A 3165 3033 31.03      
19 A 3145 3014 0.88      
20 A 3113 2983 17.15      
21 A 3047 2920 72.73      
22 A 2088 2001 16.74      
23 A 1468 1407 10.59      
24 A 1457 1397 6.53      
25 A 1381 1324 4.03      
26 A 1303 1248 23.31      
27 A 1104 1058 1.56      
28 A 1043 1000 1.46      
29 A 971 931 17.21      
30 A 709 679 17.13      
31 A 561 537 15.30      
32 A 221 212 1.16      
33 A 160 153 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 24684.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 23655.3 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 mPW1PW91/aug-cc-pVDZ
ABC
0.58219 0.07407 0.07168

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.408
C2 0.000 1.311 0.409
C3 0.000 -1.311 0.409
C4 -0.869 2.178 -0.456
C5 0.869 -2.178 -0.456
H6 0.683 1.824 1.093
H7 -0.683 -1.824 1.093
H8 -1.507 2.827 0.161
H9 -0.256 2.836 -1.089
H10 -1.513 1.575 -1.104
H11 1.507 -2.827 0.161
H12 0.256 -2.836 -1.089
H13 1.513 -1.575 -1.104

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31121.31122.49962.49962.06482.06483.21333.21652.65653.21333.21652.6565
C21.31122.62241.50243.69891.09443.28072.15192.15262.15664.41134.41653.5930
C31.31122.62243.69891.50243.28071.09444.41134.41653.59302.15192.15262.1566
C42.49961.50243.69894.69102.22224.29581.09921.09911.09505.57545.17764.4926
C52.49963.69891.50244.69104.29582.22225.57545.17764.49261.09921.09911.0950
H62.06481.09443.28072.22224.29583.89532.58312.58213.11734.81485.16284.1315
H72.06483.28071.09444.29582.22223.89534.81485.16284.13152.58312.58213.1173
H83.21332.15194.41131.09925.57542.58314.81481.76781.78046.40766.06135.4864
H93.21652.15264.41651.09915.17762.58215.16281.76781.78086.06135.69444.7522
H102.65652.15663.59301.09504.49263.11734.13151.78041.78085.48644.75224.3681
H113.21334.41132.15195.57541.09924.81482.58316.40766.06135.48641.76781.7804
H123.21654.41652.15265.17761.09915.16282.58216.06135.69444.75221.76781.7808
H132.65653.59302.15664.49261.09504.13153.11735.48644.75224.36811.78041.7808

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.209 C1 C2 H6 117.981
C1 C3 C5 125.209 C1 C3 H7 117.981
C2 C1 C3 179.872 C2 C4 H8 110.663
C2 C4 H9 110.714 C2 C4 H10 111.290
C3 C5 H11 110.663 C3 C5 H12 110.714
C3 C5 H13 111.290 C4 C2 H6 116.810
C5 C3 H7 116.810 H8 C4 H9 107.061
H8 C4 H10 108.472 H9 C4 H10 108.504
H11 C5 H12 107.061 H11 C5 H13 108.472
H12 C5 H13 108.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.459      
2 C 0.817      
3 C 0.817      
4 C 0.234      
5 C 0.234      
6 H -0.512      
7 H -0.512      
8 H -0.048      
9 H -0.040      
10 H -0.222      
11 H -0.048      
12 H -0.040      
13 H -0.222      


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 -0.239 0.239
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.308 -0.207 0.000
y -0.207 -27.949 0.000
z 0.000 0.000 -32.508
Traceless
 xyz
x -2.079 -0.207 0.000
y -0.207 4.458 0.000
z 0.000 0.000 -2.379
Polar
3z2-r2-4.758
x2-y2-4.358
xy-0.207
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.855 -1.221 0.000
y -1.221 14.963 0.000
z 0.000 0.000 7.719


<r2> (average value of r2) Å2
<r2> 172.586
(<r2>)1/2 13.137