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All results from a given calculation for CH3CHCH3 (Isopropyl radical)

using model chemistry: B2PLYP=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at B2PLYP=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-118.409209
Energy at 298.15K-118.415350
HF Energy-118.227983
Nuclear repulsion energy75.689849
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 B2PLYP=FULL/6-311+G(3df,2p)
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' 3200 3200 22.27      
2 A' 3119 3119 15.87      
3 A' 3047 3047 42.97      
4 A' 2977 2977 45.77      
5 A' 1507 1507 5.59      
6 A' 1496 1496 14.29      
7 A' 1425 1425 4.12      
8 A' 1190 1190 2.18      
9 A' 1035 1035 0.03      
10 A' 896 896 1.78      
11 A' 391 391 10.22      
12 A' 344 344 17.36      
13 A' 122 122 1.20      
14 A" 3120 3120 26.06      
15 A" 3046 3046 6.23      
16 A" 2973 2973 23.02      
17 A" 1493 1493 1.07      
18 A" 1485 1485 0.58      
19 A" 1423 1423 7.94      
20 A" 1379 1379 2.64      
21 A" 1158 1158 0.18      
22 A" 953 953 0.79      
23 A" 945 945 0.01      
24 A" 117 117 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19420.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19420.1 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 B2PLYP=FULL/6-311+G(3df,2p)
ABC
1.25014 0.28090 0.25062

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 0.539 0.000
C2 -0.010 -0.198 1.290
C3 -0.010 -0.198 -1.290
H4 0.210 1.597 0.000
H5 -0.780 -0.974 1.305
H6 -0.780 -0.974 -1.305
H7 0.944 -0.714 1.464
H8 -0.178 0.461 2.139
H9 0.944 -0.714 -1.464
H10 -0.178 0.461 -2.139

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.48581.48581.08022.14112.14112.15002.14682.15002.1468
C21.48582.57962.22131.09282.81531.09821.08802.95943.4954
C31.48582.57962.22132.81531.09282.95943.49541.09821.0880
H41.08022.22132.22133.04793.04792.83202.45242.83202.4524
H52.14111.09282.81533.04792.60981.75031.76563.27173.7790
H62.14112.81531.09283.04792.60983.27173.77901.75031.7656
H72.15001.09822.95942.83201.75033.27171.75882.92763.9518
H82.14681.08803.49542.45241.76563.77901.75883.95184.2776
H92.15002.95941.09822.83203.27171.75032.92763.95181.7588
H102.14683.49541.08802.45243.77901.76563.95184.27761.7588

picture of Isopropyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.365 C1 C2 H7 111.749
C1 C2 H8 112.122 C1 C3 H6 111.365
C1 C3 H9 111.749 C1 C3 H10 112.122
C2 C1 C3 120.478 C2 C1 H4 119.078
C3 C1 H4 119.078 H5 C2 H7 106.051
H5 C2 H8 108.122 H6 C3 H9 106.051
H6 C3 H10 108.122 H7 C2 H8 107.125
H9 C3 H10 107.125
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability