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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-65.840294
Energy at 298.15K-65.844196
HF Energy-65.840294
Nuclear repulsion energy31.708918
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 PBEPBE/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' 3009 2982 13.39      
2 A' 2904 2877 4.48      
3 A' 2505 2482 108.45      
4 A' 1428 1415 3.34      
5 A' 1278 1266 77.64      
6 A' 1200 1189 14.11      
7 A' 1049 1039 57.73      
8 A' 963 954 11.67      
9 A' 524 519 1.04      
10 A" 3063 3035 15.33      
11 A" 2576 2552 145.31      
12 A" 1377 1364 4.98      
13 A" 1027 1018 18.86      
14 A" 664 658 0.56      
15 A" 176 174 2.63      

Unscaled Zero Point Vibrational Energy (zpe) 11870.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 11762.7 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 PBEPBE/6-311G**
ABC
3.16588 0.71840 0.65486

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.682 0.000
B2 -0.021 0.871 0.000
H3 1.065 -0.933 0.000
H4 -0.430 -1.157 0.904
H5 -0.430 -1.157 -0.904
H6 0.014 1.491 -1.034
H7 0.014 1.491 1.034

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55311.11461.10001.10002.40602.4060
B21.55312.10562.25772.25771.20541.2054
H31.11462.10561.76131.76132.83622.8362
H41.10002.25771.76131.80813.31062.6874
H51.10002.25771.76131.80812.68743.3106
H62.40601.20542.83623.31062.68742.0672
H72.40601.20542.83622.68743.31062.0672

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.912 C1 B2 H7 120.912
B2 C1 H3 103.005 B2 C1 H4 115.578
B2 C1 H5 115.578 H3 C1 H4 105.368
H3 C1 H5 105.368 H4 C1 H5 110.541
H6 B2 H7 118.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.461      
2 B 0.080      
3 H 0.133      
4 H 0.132      
5 H 0.132      
6 H -0.008      
7 H -0.008      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.144 -0.772 0.000 0.786
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.891 -0.211 0.000
y -0.211 -16.520 0.000
z 0.000 0.000 -15.745
Traceless
 xyz
x 2.241 -0.211 0.000
y -0.211 -1.702 0.000
z 0.000 0.000 -0.539
Polar
3z2-r2-1.079
x2-y22.629
xy-0.211
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.163 -0.036 0.000
y -0.036 4.902 0.000
z 0.000 0.000 4.234


<r2> (average value of r2) Å2
<r2> 29.464
(<r2>)1/2 5.428