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: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-65.529278
Energy at 298.15K-65.533162
HF Energy-65.529278
Nuclear repulsion energy31.826826
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 LSDA/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' 3044 2987 6.31      
2 A' 2922 2867 6.17      
3 A' 2540 2493 89.38      
4 A' 1436 1409 4.11      
5 A' 1295 1271 89.32      
6 A' 1198 1175 5.86      
7 A' 1042 1023 55.65      
8 A' 984 965 11.26      
9 A' 490 481 3.03      
10 A" 3102 3044 6.43      
11 A" 2619 2570 122.19      
12 A" 1386 1360 6.07      
13 A" 1025 1006 19.89      
14 A" 657 645 0.02      
15 A" 193 190 4.13      

Unscaled Zero Point Vibrational Energy (zpe) 11966.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 11742.8 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 LSDA/6-31G*
ABC
3.15380 0.73014 0.66399

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.024 -0.676 0.000
B2 -0.024 0.862 0.000
H3 1.069 -0.903 0.000
H4 -0.422 -1.158 0.907
H5 -0.422 -1.158 -0.907
H6 0.019 1.483 -1.036
H7 0.019 1.483 1.036

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.53721.11681.10191.10192.39512.3951
B21.53722.07592.24972.24971.20911.2091
H31.11682.07591.76421.76422.80582.8058
H41.10192.24971.76421.81413.30882.6811
H51.10192.24971.76421.81412.68113.3088
H62.39511.20912.80583.30882.68112.0724
H72.39511.20912.80582.68113.30882.0724

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.940 C1 B2 H7 120.940
B2 C1 H3 101.749 B2 C1 H4 115.976
B2 C1 H5 115.976 H3 C1 H4 105.339
H3 C1 H5 105.339 H4 C1 H5 110.811
H6 B2 H7 117.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.632      
2 B 0.026      
3 H 0.201      
4 H 0.192      
5 H 0.192      
6 H 0.011      
7 H 0.011      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.215 -0.914 0.000 0.939
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.596 -0.219 0.000
y -0.219 -15.908 0.000
z 0.000 0.000 -15.201
Traceless
 xyz
x 1.958 -0.219 0.000
y -0.219 -1.509 0.000
z 0.000 0.000 -0.449
Polar
3z2-r2-0.897
x2-y22.311
xy-0.219
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.823 -0.016 0.000
y -0.016 4.394 0.000
z 0.000 0.000 3.757


<r2> (average value of r2) Å2
<r2> 28.956
(<r2>)1/2 5.381