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

using model chemistry: QCISD(T)/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at QCISD(T)/6-311G*
 hartrees
Energy at 0K-118.108814
Energy at 298.15K-118.114995
HF Energy-117.656148
Nuclear repulsion energy75.064989
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(T)/6-311G*
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' 3154 3036        
2 A' 3092 2977        
3 A' 3032 2919        
4 A' 2955 2845        
5 A' 1518 1461        
6 A' 1505 1449        
7 A' 1441 1387        
8 A' 1195 1151        
9 A' 1053 1013        
10 A' 893 860        
11 A' 409 393        
12 A' 349 336        
13 A' 145 140        
14 A" 3093 2978        
15 A" 3031 2919        
16 A" 2951 2842        
17 A" 1506 1450        
18 A" 1493 1437        
19 A" 1441 1387        
20 A" 1387 1335        
21 A" 1160 1117        
22 A" 957 921        
23 A" 946 910        
24 A" 108 104        

Unscaled Zero Point Vibrational Energy (zpe) 19406.1 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 18684.2 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(T)/6-311G*
ABC
1.22738 0.27632 0.24671

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.546 0.000
C2 -0.013 -0.201 1.301
C3 -0.013 -0.201 -1.301
H4 0.284 1.595 0.000
H5 -0.783 -0.987 1.306
H6 -0.783 -0.987 -1.306
H7 0.954 -0.707 1.483
H8 -0.198 0.465 2.152
H9 0.954 -0.707 -1.483
H10 -0.198 0.465 -2.152

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49971.49971.09062.15632.15632.16862.16172.16862.1617
C21.49972.60102.23741.10052.82951.10621.09702.98963.5213
C31.49972.60102.23742.82951.10052.98963.52131.10621.0970
H41.09062.23742.23743.08443.08442.81932.47832.81932.4783
H52.15631.10052.82953.08442.61251.76801.77973.29753.7964
H62.15632.82951.10053.08442.61253.29753.79641.76801.7797
H72.16861.10622.98962.81931.76803.29751.77432.96573.9893
H82.16171.09703.52132.47831.77973.79641.77433.98934.3046
H92.16862.98961.10622.81933.29751.76802.96573.98931.7743
H102.16173.52131.09702.47833.79641.77973.98934.30461.7743

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 111.119 C1 C2 H7 111.760
C1 C2 H8 111.777 C1 C3 H6 111.119
C1 C3 H9 111.760 C1 C3 H10 111.777
C2 C1 C3 120.266 C2 C1 H4 118.634
C3 C1 H4 118.634 H5 C2 H7 106.485
H5 C2 H8 108.165 H6 C3 H9 106.485
H6 C3 H10 108.165 H7 C2 H8 107.283
H9 C3 H10 107.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability