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

using model chemistry: CCSD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 2A
Energy calculated at CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-118.140624
Energy at 298.15K-118.146769
HF Energy-117.648237
Nuclear repulsion energy74.689592
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 CCSD(T)/aug-cc-pVDZ
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' 3169 3050        
2 A' 3094 2978        
3 A' 3030 2916        
4 A' 2953 2842        
5 A' 1468 1413        
6 A' 1460 1406        
7 A' 1390 1338        
8 A' 1167 1124        
9 A' 1015 977        
10 A' 887 853        
11 A' 394 379        
12 A' 336 323        
13 A' 145 139        
14 A" 3095 2979        
15 A" 3031 2917        
16 A" 2950 2839        
17 A" 1458 1403        
18 A" 1449 1394        
19 A" 1404 1351        
20 A" 1347 1297        
21 A" 1146 1103        
22 A" 925 890        
23 A" 921 886        
24 A" 115 111        

Unscaled Zero Point Vibrational Energy (zpe) 19173.8 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 18454.8 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 CCSD(T)/aug-cc-pVDZ
ABC
1.20839 0.27458 0.24487

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 0.551 0.000
C2 -0.013 -0.203 1.304
C3 -0.013 -0.203 -1.304
H4 0.280 1.609 0.000
H5 -0.789 -0.994 1.307
H6 -0.789 -0.994 -1.307
H7 0.961 -0.713 1.482
H8 -0.196 0.466 2.164
H9 0.961 -0.713 -1.482
H10 -0.196 0.466 -2.164

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.50641.50641.09752.16722.16722.17772.17392.17772.1739
C21.50642.60872.25121.10842.83661.11391.10462.99523.5374
C31.50642.60872.25122.83661.10842.99523.53741.11391.1046
H41.09752.25122.25123.10213.10212.83752.49352.83752.4935
H52.16721.10842.83663.10212.61361.78121.79373.30423.8120
H62.16722.83661.10843.10212.61363.30423.81201.78121.7937
H72.17771.11392.99522.83751.78123.30421.78752.96344.0030
H82.17391.10463.53742.49351.79373.81201.78754.00304.3289
H92.17772.99521.11392.83753.30421.78122.96344.00301.7875
H102.17393.53741.10462.49353.81201.79374.00304.32891.7875

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 111.036 C1 C2 H7 111.545
C1 C2 H8 111.811 C1 C3 H6 111.036
C1 C3 H9 111.545 C1 C3 H10 111.811
C2 C1 C3 119.965 C2 C1 H4 118.826
C3 C1 H4 118.826 H5 C2 H7 106.545
H5 C2 H8 108.301 H6 C3 H9 106.545
H6 C3 H10 108.301 H7 C2 H8 107.365
H9 C3 H10 107.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability