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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-65.676142
Energy at 298.15K-65.680064
HF Energy-65.441252
Nuclear repulsion energy31.669835
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 CCD/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' 3125 2958 14.30      
2 A' 3031 2869 2.88      
3 A' 2626 2485 94.80      
4 A' 1534 1452 2.98      
5 A' 1398 1323 56.20      
6 A' 1288 1219 30.40      
7 A' 1119 1059 70.76      
8 A' 987 934 10.27      
9 A' 607 574 0.31      
10 A" 3172 3002 17.43      
11 A" 2700 2556 142.74      
12 A" 1503 1423 4.31      
13 A" 1100 1042 20.30      
14 A" 705 668 0.78      
15 A" 124 118 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 12509.5 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 11840.3 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 CCD/6-31G*
ABC
3.18868 0.70969 0.64930

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.688 0.000
B2 -0.015 0.878 0.000
H3 1.050 -0.984 0.000
H4 -0.458 -1.136 0.896
H5 -0.458 -1.136 -0.896
H6 0.016 1.497 -1.028
H7 0.016 1.497 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56591.10531.09531.09532.41512.4151
B21.56592.14492.24842.24841.20051.2005
H31.10532.14491.76071.76072.87802.8780
H41.09532.24841.76071.79173.29552.6788
H51.09532.24841.76071.79172.67883.2955
H62.41511.20052.87803.29552.67882.0562
H72.41511.20052.87802.67883.29552.0562

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.048 C1 B2 H7 121.048
B2 C1 H3 105.530 B2 C1 H4 114.150
B2 C1 H5 114.150 H3 C1 H4 106.279
H3 C1 H5 106.279 H4 C1 H5 109.741
H6 B2 H7 117.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability