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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBE1PBE/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-65.866961
Energy at 298.15K-65.870900
HF Energy-65.866961
Nuclear repulsion energy31.887522
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/aug-cc-pVTZ
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' 3088 2969 11.37      
2 A' 2984 2869 3.81      
3 A' 2566 2467 109.37      
4 A' 1466 1410 2.85      
5 A' 1316 1265 73.85      
6 A' 1240 1192 14.91      
7 A' 1077 1036 57.84      
8 A' 980 942 11.86      
9 A' 544 523 0.60      
10 A" 3141 3020 12.74      
11 A" 2637 2535 148.76      
12 A" 1417 1363 4.82      
13 A" 1056 1016 18.38      
14 A" 678 652 0.86      
15 A" 170 163 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 12179.7 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 11710.8 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 PBE1PBE/aug-cc-pVTZ
ABC
3.21085 0.72422 0.66073

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.680 0.000
B2 -0.020 0.868 0.000
H3 1.055 -0.937 0.000
H4 -0.433 -1.145 0.896
H5 -0.433 -1.145 -0.896
H6 0.014 1.484 -1.027
H7 0.014 1.484 1.027

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.54831.10451.09081.09082.39582.3958
B21.54832.10082.24202.24201.19801.1980
H31.10452.10081.74921.74922.82852.8285
H41.09082.24201.74921.79183.28782.6701
H51.09082.24201.74921.79182.67013.2878
H62.39581.19802.82853.28782.67012.0538
H72.39581.19802.82852.67013.28782.0538

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.943 C1 B2 H7 120.943
B2 C1 H3 103.464 B2 C1 H4 115.218
B2 C1 H5 115.218 H3 C1 H4 105.650
H3 C1 H5 105.650 H4 C1 H5 110.430
H6 B2 H7 118.011
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.664      
2 B -0.092      
3 H 0.253      
4 H 0.244      
5 H 0.244      
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
  0.099 -0.697 0.000 0.704
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.738 -0.184 0.000
y -0.184 -16.447 0.000
z 0.000 0.000 -15.650
Traceless
 xyz
x 2.311 -0.184 0.000
y -0.184 -1.753 0.000
z 0.000 0.000 -0.558
Polar
3z2-r2-1.116
x2-y22.709
xy-0.184
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.800 -0.039 0.000
y -0.039 5.081 0.000
z 0.000 0.000 4.400


<r2> (average value of r2) Å2
<r2> 29.199
(<r2>)1/2 5.404