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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-65.921161
Energy at 298.15K-65.925078
HF Energy-65.921161
Nuclear repulsion energy31.722691
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 B3PW91/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' 3087 2978 14.21      
2 A' 2981 2876 3.69      
3 A' 2555 2465 113.70      
4 A' 1443 1392 2.49      
5 A' 1301 1255 74.48      
6 A' 1223 1180 13.14      
7 A' 1069 1031 55.77      
8 A' 976 941 10.64      
9 A' 535 516 0.59      
10 A" 3143 3032 15.84      
11 A" 2629 2536 153.98      
12 A" 1393 1343 4.26      
13 A" 1045 1008 18.20      
14 A" 672 649 1.00      
15 A" 166 160 1.50      

Unscaled Zero Point Vibrational Energy (zpe) 12109.5 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 11680.8 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 B3PW91/aug-cc-pVDZ
ABC
3.16739 0.71858 0.65512

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.682 0.000
B2 -0.020 0.871 0.000
H3 1.061 -0.941 0.000
H4 -0.436 -1.151 0.902
H5 -0.436 -1.151 -0.902
H6 0.014 1.491 -1.035
H7 0.014 1.491 1.035

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55311.11161.09821.09822.40752.4075
B21.55312.10992.25262.25261.20681.2068
H31.11162.10991.76011.76012.84332.8433
H41.09822.25261.76011.80393.30662.6835
H51.09822.25261.76011.80392.68353.3066
H62.40751.20682.84333.30662.68352.0692
H72.40751.20682.84332.68353.30662.0692

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.937 C1 B2 H7 120.937
B2 C1 H3 103.464 B2 C1 H4 115.264
B2 C1 H5 115.264 H3 C1 H4 105.595
H3 C1 H5 105.595 H4 C1 H5 110.427
H6 B2 H7 118.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.615      
2 B -0.780      
3 H -0.221      
4 H -0.279      
5 H -0.279      
6 H 0.472      
7 H 0.472      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.098 -0.694 0.000 0.700
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.753 -0.184 0.000
y -0.184 -16.481 0.000
z 0.000 0.000 -15.702
Traceless
 xyz
x 2.338 -0.184 0.000
y -0.184 -1.753 0.000
z 0.000 0.000 -0.585
Polar
3z2-r2-1.169
x2-y22.728
xy-0.184
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.824 -0.041 0.000
y -0.041 5.144 0.000
z 0.000 0.000 4.466


<r2> (average value of r2) Å2
<r2> 29.410
(<r2>)1/2 5.423