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

using model chemistry: CCSD(T)/TZVP

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)/TZVP
 hartrees
Energy at 0K-118.169892
Energy at 298.15K-118.176083
HF Energy-117.676266
Nuclear repulsion energy75.340884
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)/TZVP
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' 3187 3067        
2 A' 3116 2999        
3 A' 3059 2944        
4 A' 2977 2866        
5 A' 1506 1450        
6 A' 1488 1433        
7 A' 1433 1379        
8 A' 1194 1150        
9 A' 1056 1016        
10 A' 890 856        
11 A' 432 415        
12 A' 358 344        
13 A' 157 151        
14 A" 3117 3000        
15 A" 3058 2943        
16 A" 2974 2863        
17 A" 1495 1439        
18 A" 1477 1422        
19 A" 1432 1378        
20 A" 1383 1332        
21 A" 1155 1111        
22 A" 948 913        
23 A" 944 909        
24 A" 82 79        

Unscaled Zero Point Vibrational Energy (zpe) 19458.9 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 18729.2 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 CCSD(T)/TZVP
ABC
1.23325 0.27862 0.24874

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 0.547 0.000
C2 -0.014 -0.201 1.295
C3 -0.014 -0.201 -1.295
H4 0.309 1.583 0.000
H5 -0.767 -0.998 1.288
H6 -0.767 -0.998 -1.288
H7 0.958 -0.686 1.484
H8 -0.220 0.458 2.143
H9 0.958 -0.686 -1.484
H10 -0.220 0.458 -2.143

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10
C11.49541.49541.08542.14742.14742.15952.15482.15952.1548
C21.49542.59052.22791.09622.80651.10221.09302.98343.5069
C31.49542.59052.22792.80651.09622.98343.50691.10221.0930
H41.08542.22792.22793.07833.07832.78722.47762.78722.4776
H52.14741.09622.80653.07832.57661.76331.77413.27943.7672
H62.14742.80651.09623.07832.57663.27943.76721.76331.7741
H72.15951.10222.98342.78721.76333.27941.76882.96703.9807
H82.15481.09303.50692.47761.77413.76721.76883.98074.2862
H92.15952.98341.10222.78723.27941.76332.96703.98071.7688
H102.15483.50691.09302.47763.76721.77413.98074.28621.7688

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 110.969 C1 C2 H7 111.577
C1 C2 H8 111.766 C1 C3 H6 110.969
C1 C3 H9 111.577 C1 C3 H10 111.766
C2 C1 C3 120.030 C2 C1 H4 118.501
C3 C1 H4 118.501 H5 C2 H7 106.659
H5 C2 H8 108.272 H6 C3 H9 106.659
H6 C3 H10 108.272 H7 C2 H8 107.368
H9 C3 H10 107.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability