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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-65.752992
Energy at 298.15K-65.756943
HF Energy-65.451887
Nuclear repulsion energy31.756545
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 CCSD/6-31G(2df,p)
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' 3136 2965 10.58      
2 A' 3038 2872 2.79      
3 A' 2634 2490 89.68      
4 A' 1511 1428 1.40      
5 A' 1361 1287 55.45      
6 A' 1282 1212 23.44      
7 A' 1107 1047 67.50      
8 A' 978 925 12.20      
9 A' 566 536 0.78      
10 A" 3186 3013 13.04      
11 A" 2708 2560 125.67      
12 A" 1474 1393 2.92      
13 A" 1084 1025 19.14      
14 A" 690 652 0.77      
15 A" 160 151 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 12456.6 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 11777.8 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 CCSD/6-31G(2df,p)
ABC
3.21279 0.71271 0.65186

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.687 0.000
B2 -0.017 0.877 0.000
H3 1.052 -0.958 0.000
H4 -0.445 -1.144 0.894
H5 -0.445 -1.144 -0.894
H6 0.014 1.491 -1.025
H7 0.014 1.491 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56451.10291.09121.09122.40692.4069
B21.56452.12372.25112.25111.19441.1944
H31.10292.12371.75331.75332.84942.8494
H41.09122.25111.75331.78843.29122.6772
H51.09122.25111.75331.78842.67723.2912
H62.40691.19442.84943.29122.67722.0490
H72.40691.19442.84942.67723.29122.0490

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.890 C1 B2 H7 120.890
B2 C1 H3 104.191 B2 C1 H4 114.736
B2 C1 H5 114.736 H3 C1 H4 106.088
H3 C1 H5 106.088 H4 C1 H5 110.062
H6 B2 H7 118.128
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability