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All results from a given calculation for CH2CH(CH3)2 (Isobutyl radical)

using model chemistry: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A'
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-157.670797
Energy at 298.15K-157.679366
Nuclear repulsion energy124.954220
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 BLYP/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 3049 3053 18.81      
2 A 3017 3022 58.04      
3 A 3015 3020 50.55      
4 A 2948 2952 21.96      
5 A 2793 2797 39.44      
6 A 1443 1445 4.99      
7 A 1432 1435 4.43      
8 A 1403 1406 1.36      
9 A 1355 1357 0.72      
10 A 1257 1259 4.95      
11 A 1161 1163 0.91      
12 A 1049 1051 1.34      
13 A 952 953 0.79      
14 A 789 790 0.04      
15 A 519 520 20.15      
16 A 399 399 9.09      
17 A 349 350 0.27      
18 A 255 255 0.02      
19 A 3153 3159 19.27      
20 A 3014 3019 20.90      
21 A 3011 3016 2.86      
22 A 2943 2948 39.11      
23 A 1422 1424 1.43      
24 A 1419 1421 0.20      
25 A 1340 1342 0.58      
26 A 1270 1272 2.59      
27 A 1139 1140 0.43      
28 A 936 938 0.06      
29 A 912 913 0.82      
30 A 872 874 0.19      
31 A 366 367 0.18      
32 A 229 229 0.00      
33 A 124 125 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 24667.6 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 24707.1 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 BLYP/cc-pVDZ
ABC
0.27585 0.25814 0.15086

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.352 0.000
C2 1.489 0.159 0.000
H3 -0.205 1.457 0.000
H4 2.058 0.167 0.942
H5 2.058 0.167 -0.942
C6 -0.658 -0.220 -1.282
C7 -0.658 -0.220 1.282
H8 -0.523 -1.321 -1.337
H9 -1.746 -0.007 -1.303
H10 -0.208 0.221 -2.196
H11 -0.523 -1.321 1.337
H12 -1.746 -0.007 1.303
H13 -0.208 0.221 2.196

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 C6 C7 H8 H9 H10 H11 H12 H13
C11.50201.12412.27072.27071.55041.55042.20462.20802.20932.20462.20802.2093
C21.50202.13461.10041.10042.52932.52932.83323.49202.77612.83323.49202.7761
H31.12412.13462.76972.76972.15952.15953.09972.49342.51993.09972.49342.5199
H42.27071.10042.76971.88473.53142.76383.75084.42043.87093.00513.82492.5900
H52.27071.10042.76971.88472.76383.53143.00513.82492.59003.75084.42043.8709
C61.55042.52932.15953.53142.76382.56391.11041.10951.10952.84372.81273.5340
C71.55042.52932.15952.76383.53142.56392.84372.81273.53401.11041.10951.1095
H82.20462.83323.09973.75083.00511.11042.84371.79581.79292.67323.19213.8668
H92.20803.49202.49344.42043.82491.10952.81271.79581.79283.19212.60553.8282
H102.20932.77612.51993.87092.59001.10953.53401.79291.79283.86683.82824.3911
H112.20462.83323.09973.00513.75082.84371.11042.67323.19213.86681.79581.7929
H122.20803.49202.49343.82494.42042.81271.10953.19212.60553.82821.79581.7928
H132.20932.77612.51992.59003.87093.53401.10953.86683.82824.39111.79291.7928

picture of Isobutyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 120.734 C1 C2 H5 120.734
C1 C6 H8 110.813 C1 C6 H9 111.140
C1 C6 H10 111.242 C1 C7 H11 110.813
C1 C7 H12 111.140 C1 C7 H13 111.242
C2 C1 H3 107.890 C2 C1 C6 111.910
C2 C1 C7 111.910 H3 C1 C6 106.606
H3 C1 C7 106.606 H4 C2 H5 117.820
C6 C1 C7 111.558 H8 C6 H9 107.986
H8 C6 H10 107.725 H9 C6 H10 107.783
H11 C7 H12 107.986 H11 C7 H13 107.725
H12 C7 H13 107.783
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 C 0.001      
3 H -0.006      
4 H -0.003      
5 H -0.003      
6 C 0.046      
7 C 0.046      
8 H 0.005      
9 H -0.003      
10 H 0.001      
11 H 0.005      
12 H -0.003      
13 H 0.001      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.212 0.206 0.000 0.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.160 -0.048 0.000
y -0.048 -28.438 0.000
z 0.000 0.000 -27.671
Traceless
 xyz
x -0.105 -0.048 0.000
y -0.048 -0.522 0.000
z 0.000 0.000 0.628
Polar
3z2-r21.256
x2-y20.278
xy-0.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.658 0.073 0.000
y 0.073 5.892 0.000
z 0.000 0.000 7.514


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000