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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBEultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-65.826047
Energy at 298.15K-65.829919
HF Energy-65.826047
Nuclear repulsion energy31.605197
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 PBEPBEultrafine/aug-cc-pVDZ
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' 3017 2999 12.94      
2 A' 2905 2887 4.20      
3 A' 2501 2486 108.65      
4 A' 1397 1389 2.39      
5 A' 1254 1247 78.08      
6 A' 1182 1175 8.37      
7 A' 1038 1031 49.18      
8 A' 962 956 10.01      
9 A' 496 493 0.64      
10 A" 3076 3057 14.00      
11 A" 2576 2560 144.76      
12 A" 1342 1333 4.28      
13 A" 1014 1008 16.82      
14 A" 651 647 0.96      
15 A" 178 177 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 11793.7 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 11721.7 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
3.12927 0.71637 0.65210

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.022 -0.683 0.000
B2 -0.022 0.872 0.000
H3 1.072 -0.924 0.000
H4 -0.427 -1.163 0.909
H5 -0.427 -1.163 -0.909
H6 0.013 1.494 -1.042
H7 0.013 1.494 1.042

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55421.12021.10521.10522.41362.4136
B21.55422.10292.26522.26521.21411.2141
H31.12022.10291.76891.76892.83822.8382
H41.10522.26521.76891.81853.32612.6971
H51.10522.26521.76891.81852.69713.3261
H62.41361.21412.83823.32612.69712.0833
H72.41361.21412.83822.69713.32612.0833

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.860 C1 B2 H7 120.860
B2 C1 H3 102.471 B2 C1 H4 115.779
B2 C1 H5 115.779 H3 C1 H4 105.284
H3 C1 H5 105.284 H4 C1 H5 110.706
H6 B2 H7 118.167
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.760      
2 B -1.172      
3 H -0.244      
4 H -0.316      
5 H -0.316      
6 H 0.644      
7 H 0.644      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.118 -0.767 0.000 0.776
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.017 -0.196 0.000
y -0.196 -16.686 0.000
z 0.000 0.000 -15.911
Traceless
 xyz
x 2.281 -0.196 0.000
y -0.196 -1.721 0.000
z 0.000 0.000 -0.560
Polar
3z2-r2-1.120
x2-y22.669
xy-0.196
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.979 -0.053 0.000
y -0.053 5.463 0.000
z 0.000 0.000 4.663


<r2> (average value of r2) Å2
<r2> 29.668
(<r2>)1/2 5.447