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All results from a given calculation for C(CH3)3 (Tert-butyl radical)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A"
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-157.235731
Energy at 298.15K-157.244381
HF Energy-156.701967
Nuclear repulsion energy125.467559
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 MP2/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3110 2955 51.82      
2 A1 3011 2861 52.41      
3 A1 1536 1460 26.92      
4 A1 1460 1388 3.59      
5 A1 1138 1082 0.16      
6 A1 786 747 1.76      
7 A1 287 273 3.62      
8 A2 3157 3000 0.00      
9 A2 1510 1434 0.00      
10 A2 986 937 0.00      
11 A2 150 143 0.00      
12 E 3161 3003 39.46      
12 E 3161 3003 39.46      
13 E 3109 2954 12.57      
13 E 3109 2954 12.57      
14 E 3006 2856 29.86      
14 E 3006 2856 29.86      
15 E 1536 1459 4.55      
15 E 1536 1459 4.55      
16 E 1513 1437 4.56      
16 E 1513 1437 4.56      
17 E 1438 1367 11.56      
17 E 1438 1367 11.56      
18 E 1330 1264 4.53      
18 E 1330 1264 4.53      
19 E 1038 987 2.16      
19 E 1038 987 2.16      
20 E 956 908 0.12      
20 E 956 908 0.12      
21 E 384 365 0.06      
21 E 384 365 0.06      
22 E 166 158 0.02      
22 E 166 158 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 26199.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 24897.5 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 MP2/6-311G*
ABC
0.26787 0.26787 0.14590

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.180
C2 0.000 1.480 -0.019
C3 1.282 -0.740 -0.019
C4 -1.282 -0.740 -0.019
H5 0.000 1.750 -1.089
H6 1.516 -0.875 -1.089
H7 -1.516 -0.875 -1.089
H8 -0.887 1.944 0.423
H9 0.887 1.944 0.423
H10 2.127 -0.204 0.423
H11 1.240 -1.740 0.423
H12 -1.240 -1.740 0.423
H13 -2.127 -0.204 0.423

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
C11.49351.49351.49352.16142.16142.16142.15052.15052.15052.15052.15052.1505
C21.49352.56382.56381.10292.99802.99801.09401.09402.74893.47893.47892.7489
C31.49352.56382.56382.99801.10292.99803.47892.74891.09401.09402.74893.4789
C41.49352.56382.56382.99802.99801.10292.74893.47893.47892.74891.09401.0940
H52.16141.10292.99802.99803.03123.03121.76311.76313.26004.00044.00043.2600
H62.16142.99801.10292.99803.03123.03124.00043.26001.76311.76313.26004.0004
H72.16142.99802.99801.10293.03123.03123.26004.00044.00043.26001.76311.7631
H82.15051.09403.47892.74891.76314.00043.26001.77343.70094.25393.70092.4805
H92.15051.09402.74893.47891.76313.26004.00041.77342.48053.70094.25393.7009
H102.15052.74891.09403.47893.26001.76314.00043.70092.48051.77343.70094.2539
H112.15053.47891.09402.74894.00041.76313.26004.25393.70091.77342.48053.7009
H122.15053.47892.74891.09404.00043.26001.76313.70094.25393.70092.48051.7734
H132.15052.74893.47891.09403.26004.00041.76312.48053.70094.25393.70091.7734

picture of Tert-butyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.818 C1 C2 H8 111.492
C1 C2 H9 111.492 C1 C3 H6 111.818
C1 C3 H10 111.492 C1 C3 H11 111.492
C1 C4 H7 111.818 C1 C4 H12 111.492
C1 C4 H13 111.492 C2 C1 C3 118.254
C2 C1 C4 118.254 C3 C1 C4 118.254
H5 C2 H8 106.744 H5 C2 H9 106.744
H6 C3 H10 106.744 H6 C3 H11 106.744
H7 C4 H12 106.744 H7 C4 H13 106.744
H8 C2 H9 108.291 H10 C3 H11 108.291
H12 C4 H13 108.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability