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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2=FULL/6-31G**

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/6-31G**
 hartrees
Energy at 0K-65.695706
Energy at 298.15K-65.699670
HF Energy-65.448601
Nuclear repulsion energy31.893717
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/6-31G**
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' 3202 2992 11.88      
2 A' 3095 2892 1.97      
3 A' 2685 2509 101.36      
4 A' 1543 1442 1.63      
5 A' 1391 1300 69.79      
6 A' 1315 1229 23.85      
7 A' 1134 1060 82.12      
8 A' 998 932 11.05      
9 A' 583 545 0.56      
10 A" 3257 3043 13.88      
11 A" 2766 2584 153.08      
12 A" 1502 1403 3.01      
13 A" 1107 1035 20.62      
14 A" 709 663 1.01      
15 A" 148 139 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 12717.8 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 11883.5 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=FULL/6-31G**
ABC
3.24015 0.71855 0.65746

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.685 0.000
B2 -0.017 0.873 0.000
H3 1.046 -0.959 0.000
H4 -0.448 -1.134 0.891
H5 -0.448 -1.134 -0.891
H6 0.017 1.485 -1.019
H7 0.017 1.485 1.019

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55851.09711.08631.08632.39812.3981
B21.55852.11772.23782.23781.18921.1892
H31.09712.11771.74751.74752.84072.8407
H41.08632.23781.74751.78113.27472.6634
H51.08632.23781.74751.78112.66343.2747
H62.39811.18922.84073.27472.66342.0379
H72.39811.18922.84072.66343.27472.0379

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.984 C1 B2 H7 120.984
B2 C1 H3 104.427 B2 C1 H4 114.402
B2 C1 H5 114.402 H3 C1 H4 106.327
H3 C1 H5 106.327 H4 C1 H5 110.128
H6 B2 H7 117.925
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability