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All results from a given calculation for CH3BH2 (methylborane)

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 CS 1A'
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-65.708065
Energy at 298.15K-65.712038
HF Energy-65.459592
Nuclear repulsion energy31.770239
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 A' 3139 2983 12.26      
2 A' 3029 2878 2.50      
3 A' 2611 2481 109.65      
4 A' 1500 1425 3.23      
5 A' 1344 1277 80.23      
6 A' 1277 1213 18.99      
7 A' 1107 1052 72.34      
8 A' 981 932 11.66      
9 A' 555 528 0.95      
10 A" 3195 3036 13.50      
11 A" 2686 2552 159.36      
12 A" 1454 1382 4.19      
13 A" 1082 1028 20.08      
14 A" 692 658 1.40      
15 A" 175 166 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 12413.4 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 11795.2 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 MP2/6-311G**
ABC
3.20009 0.71526 0.65370

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.687 0.000
B2 -0.019 0.875 0.000
H3 1.057 -0.940 0.000
H4 -0.441 -1.144 0.897
H5 -0.441 -1.144 -0.897
H6 0.017 1.488 -1.026
H7 0.017 1.488 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56231.10471.09181.09182.40532.4053
B21.56232.10972.24962.24961.19551.1955
H31.10472.10971.75781.75782.83352.8335
H41.09182.24961.75781.79433.29182.6748
H51.09182.24961.75781.79432.67483.2918
H62.40531.19552.83353.29182.67482.0518
H72.40531.19552.83352.67483.29182.0518

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.841 C1 B2 H7 120.841
B2 C1 H3 103.225 B2 C1 H4 114.740
B2 C1 H5 114.740 H3 C1 H4 106.309
H3 C1 H5 106.309 H4 C1 H5 110.514
H6 B2 H7 118.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability