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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-65.895962
Energy at 298.15K-65.899843
HF Energy-65.895962
Nuclear repulsion energy31.583083
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 BLYP/6-31+G**
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' 2992 2976 17.55      
2 A' 2891 2876 5.60      
3 A' 2528 2515 122.28      
4 A' 1447 1439 3.46      
5 A' 1299 1292 75.84      
6 A' 1224 1217 21.19      
7 A' 1067 1062 62.16      
8 A' 947 942 13.29      
9 A' 545 542 0.36      
10 A" 3040 3024 21.61      
11 A" 2592 2578 177.87      
12 A" 1400 1392 5.80      
13 A" 1037 1032 18.79      
14 A" 670 667 1.03      
15 A" 152 152 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 11916.1 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 11852.9 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 BLYP/6-31+G**
ABC
3.16191 0.70901 0.64756

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.686 0.000
B2 -0.019 0.878 0.000
H3 1.063 -0.959 0.000
H4 -0.442 -1.155 0.903
H5 -0.442 -1.155 -0.903
H6 0.014 1.498 -1.033
H7 0.014 1.498 1.033

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56481.11531.10221.10222.41592.4159
B21.56482.13192.26532.26531.20441.2044
H31.11532.13191.76561.76562.86352.8635
H41.10222.26531.76561.80673.31572.6950
H51.10222.26531.76561.80672.69503.3157
H62.41591.20442.86353.31572.69502.0650
H72.41591.20442.86352.69503.31572.0650

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.936 C1 B2 H7 120.936
B2 C1 H3 104.143 B2 C1 H4 115.192
B2 C1 H5 115.192 H3 C1 H4 105.538
H3 C1 H5 105.538 H4 C1 H5 110.089
H6 B2 H7 118.031
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.594      
2 B 0.168      
3 H 0.158      
4 H 0.159      
5 H 0.159      
6 H -0.024      
7 H -0.024      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.125 -0.718 0.000 0.729
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.990 -0.179 0.000
y -0.179 -16.856 0.000
z 0.000 0.000 -16.018
Traceless
 xyz
x 2.447 -0.179 0.000
y -0.179 -1.851 0.000
z 0.000 0.000 -0.595
Polar
3z2-r2-1.191
x2-y22.865
xy-0.179
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.174 -0.040 0.000
y -0.040 5.014 0.000
z 0.000 0.000 4.213


<r2> (average value of r2) Å2
<r2> 29.804
(<r2>)1/2 5.459