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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-65.828307
Energy at 298.15K-65.832218
HF Energy-65.828307
Nuclear repulsion energy31.741246
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 PBE1PBE/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' 3116 2978 14.36      
2 A' 3014 2881 2.30      
3 A' 2589 2475 107.04      
4 A' 1520 1453 5.97      
5 A' 1387 1326 77.17      
6 A' 1266 1210 30.55      
7 A' 1100 1052 77.88      
8 A' 994 950 12.04      
9 A' 625 597 0.55      
10 A" 3169 3029 16.94      
11 A" 2667 2549 163.28      
12 A" 1484 1419 7.73      
13 A" 1090 1042 25.57      
14 A" 704 673 0.15      
15 A" 111 106 3.00      

Unscaled Zero Point Vibrational Energy (zpe) 12417.1 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 11869.5 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 PBE1PBE/6-31G
ABC
3.19152 0.71540 0.65397

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.684 0.000
B2 -0.015 0.873 0.000
H3 1.050 -0.986 0.000
H4 -0.456 -1.133 0.896
H5 -0.456 -1.133 -0.896
H6 0.013 1.494 -1.028
H7 0.013 1.494 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55731.10671.09511.09512.40852.4085
B21.55732.14242.24112.24111.20101.2010
H31.10672.14241.75851.75852.87782.8778
H41.09512.24111.75851.79223.28962.6716
H51.09512.24111.75851.79222.67163.2896
H62.40851.20102.87783.28962.67162.0555
H72.40851.20102.87782.67163.28962.0555

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.120 C1 B2 H7 121.120
B2 C1 H3 105.823 B2 C1 H4 114.202
B2 C1 H5 114.202 H3 C1 H4 106.008
H3 C1 H5 106.008 H4 C1 H5 109.837
H6 B2 H7 117.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.706      
2 B 0.230      
3 H 0.188      
4 H 0.181      
5 H 0.181      
6 H -0.037      
7 H -0.037      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.155 -0.723 0.000 0.740
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.477 -0.194 0.000
y -0.194 -16.048 0.000
z 0.000 0.000 -15.446
Traceless
 xyz
x 2.270 -0.194 0.000
y -0.194 -1.586 0.000
z 0.000 0.000 -0.684
Polar
3z2-r2-1.367
x2-y22.571
xy-0.194
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.665 -0.024 0.000
y -0.024 4.105 0.000
z 0.000 0.000 3.659


<r2> (average value of r2) Å2
<r2> 29.226
(<r2>)1/2 5.406