return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-65.686079
Energy at 298.15K-65.690045
HF Energy-65.446384
Nuclear repulsion energy31.580437
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/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' 3161 3004 10.67      
2 A' 3045 2894 1.98      
3 A' 2622 2492 110.55      
4 A' 1479 1405 2.03      
5 A' 1332 1266 77.65      
6 A' 1264 1202 13.10      
7 A' 1099 1044 70.75      
8 A' 984 935 11.84      
9 A' 547 520 0.88      
10 A" 3220 3060 10.36      
11 A" 2699 2565 163.60      
12 A" 1430 1359 3.02      
13 A" 1069 1016 20.62      
14 A" 685 651 1.16      
15 A" 181 172 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 12408.2 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 11792.7 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/cc-pVDZ
ABC
3.14898 0.70921 0.64728

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.689 0.000
B2 -0.020 0.878 0.000
H3 1.064 -0.941 0.000
H4 -0.440 -1.153 0.904
H5 -0.440 -1.153 -0.904
H6 0.016 1.497 -1.037
H7 0.016 1.497 1.037

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56711.11271.09981.09982.41992.4199
B21.56712.11732.26272.26271.20821.2082
H31.11272.11731.76801.76802.84922.8492
H41.09982.26271.76801.80783.31662.6927
H51.09982.26271.76801.80782.69273.3166
H62.41991.20822.84923.31662.69272.0737
H72.41991.20822.84922.69273.31662.0737

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.828 C1 B2 H7 120.828
B2 C1 H3 103.081 B2 C1 H4 114.963
B2 C1 H5 114.963 H3 C1 H4 106.088
H3 C1 H5 106.088 H4 C1 H5 110.553
H6 B2 H7 118.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability