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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-65.939716
Energy at 298.15K-65.943654
HF Energy-65.939716
Nuclear repulsion energy31.845360
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 B3PW91/TZVP
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' 3080 2970 13.23      
2 A' 2980 2874 3.66      
3 A' 2565 2473 111.40      
4 A' 1473 1420 3.90      
5 A' 1325 1278 77.52      
6 A' 1243 1199 17.71      
7 A' 1080 1041 65.66      
8 A' 975 941 12.40      
9 A' 554 535 0.70      
10 A" 3131 3020 14.68      
11 A" 2636 2542 152.58      
12 A" 1426 1375 5.80      
13 A" 1058 1021 19.83      
14 A" 685 660 0.66      
15 A" 164 158 2.22      

Unscaled Zero Point Vibrational Energy (zpe) 12187.4 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 11752.3 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 B3PW91/TZVP
ABC
3.20811 0.72145 0.65853

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.681 0.000
B2 -0.019 0.870 0.000
H3 1.054 -0.947 0.000
H4 -0.437 -1.145 0.896
H5 -0.437 -1.145 -0.896
H6 0.014 1.487 -1.027
H7 0.014 1.487 1.027

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55121.10481.09201.09202.39922.3992
B21.55122.10962.24442.24441.19851.1985
H31.10482.10961.75061.75062.83842.8384
H41.09202.24441.75061.79143.29052.6734
H51.09202.24441.75061.79142.67343.2905
H62.39921.19852.83843.29052.67342.0542
H72.39921.19852.83842.67343.29052.0542

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.972 C1 B2 H7 120.972
B2 C1 H3 103.903 B2 C1 H4 115.130
B2 C1 H5 115.130 H3 C1 H4 105.662
H3 C1 H5 105.662 H4 C1 H5 110.218
H6 B2 H7 117.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.457      
2 B 0.105      
3 H 0.130      
4 H 0.137      
5 H 0.137      
6 H -0.026      
7 H -0.026      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.120 -0.688 0.000 0.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.670 -0.183 0.000
y -0.183 -16.428 0.000
z 0.000 0.000 -15.620
Traceless
 xyz
x 2.354 -0.183 0.000
y -0.183 -1.783 0.000
z 0.000 0.000 -0.571
Polar
3z2-r2-1.143
x2-y22.758
xy-0.183
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.143 -0.013 0.000
y -0.013 4.697 0.000
z 0.000 0.000 4.113


<r2> (average value of r2) Å2
<r2> 29.237
(<r2>)1/2 5.407