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All results from a given calculation for C3H5 (Allyl radical)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-116.858272
Energy at 298.15K-116.862497
HF Energy-116.467528
Nuclear repulsion energy64.674793
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 QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3277 3121 21.07      
2 A1 3185 3033 0.94      
3 A1 3173 3022 18.17      
4 A1 1557 1483 2.00      
5 A1 1299 1237 0.54      
6 A1 1054 1004 0.05      
7 A1 432 411 0.06      
8 A2 755 719 0.00      
9 A2 554 528 0.00      
10 B1 996 948 22.26      
11 B1 769 732 75.69      
12 B1 533 508 12.35      
13 B2 3274 3118 7.07      
14 B2 3178 3026 10.09      
15 B2 1540 1467 0.19      
16 B2 1448 1379 4.13      
17 B2 1208 1151 0.02      
18 B2 954 909 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 14593.7 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 13897.6 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 QCISD/6-31G*
ABC
1.80390 0.34301 0.28821

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.450
H2 0.000 0.000 1.542
C3 0.000 1.230 -0.198
C4 0.000 -1.230 -0.198
H5 0.000 2.166 0.354
H6 0.000 -2.166 0.354
H7 0.000 1.293 -1.285
H8 0.000 -1.293 -1.285

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6 H7 H8
C11.09161.39051.39052.16802.16802.16372.1637
H21.09162.13082.13082.47022.47023.10823.1082
C31.39052.13082.46041.08643.44061.08842.7473
C41.39052.13082.46043.44061.08642.74731.0884
H52.16802.47021.08643.44064.33171.85663.8274
H62.16802.47023.44061.08644.33173.82741.8566
H72.16373.10821.08842.74731.85663.82742.5861
H82.16373.10822.74731.08843.82741.85662.5861

picture of Allyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 121.675 C1 C3 H7 121.096
C1 C4 H6 121.675 C1 C4 H8 121.096
H2 C1 C3 117.785 H2 C1 C4 117.785
C3 C1 C4 124.430 H5 C3 H7 117.228
H6 C4 H8 117.228
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability