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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2=FULL/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=FULL/6-311G*
 hartrees
Energy at 0K-65.706031
Energy at 298.15K-65.709991
HF Energy-65.451957
Nuclear repulsion energy31.787376
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=FULL/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' 3142 2975 12.29      
2 A' 3036 2875 2.17      
3 A' 2601 2463 106.49      
4 A' 1523 1442 6.10      
5 A' 1373 1301 78.44      
6 A' 1272 1205 25.69      
7 A' 1115 1056 69.68      
8 A' 984 932 11.02      
9 A' 576 545 0.58      
10 A" 3197 3027 13.65      
11 A" 2677 2536 155.50      
12 A" 1489 1410 6.93      
13 A" 1092 1034 21.96      
14 A" 700 663 0.83      
15 A" 157 149 1.67      

Unscaled Zero Point Vibrational Energy (zpe) 12466.4 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 11806.9 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=FULL/6-311G*
ABC
3.20532 0.71613 0.65430

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.685 0.000
B2 -0.018 0.874 0.000
H3 1.051 -0.958 0.000
H4 -0.445 -1.140 0.895
H5 -0.445 -1.140 -0.895
H6 0.016 1.490 -1.028
H7 0.016 1.490 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55961.10271.09071.09072.40582.4058
B21.55962.12082.24512.24511.19831.1983
H31.10272.12081.75221.75222.84922.8492
H41.09072.24511.75221.78933.28982.6731
H51.09072.24511.75221.78932.67313.2898
H62.40581.19832.84923.28982.67312.0552
H72.40581.19832.84922.67313.28982.0552

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.904 C1 B2 H7 120.904
B2 C1 H3 104.300 B2 C1 H4 114.643
B2 C1 H5 114.643 H3 C1 H4 106.042
H3 C1 H5 106.042 H4 C1 H5 110.231
H6 B2 H7 118.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability