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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD(T)=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-65.827615
Energy at 298.15K-65.831647
HF Energy-65.466421
Nuclear repulsion energy31.927735
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 QCISD(T)=FULL/cc-pVTZ
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' 3094 2961        
2 A' 2980 2851        
3 A' 2602 2490        
4 A' 1497 1432        
5 A' 1338 1280        
6 A' 1271 1216        
7 A' 1100 1053        
8 A' 984 942        
9 A' 555 531        
10 A" 3137 3002        
11 A" 2678 2563        
12 A" 1451 1389        
13 A" 1079 1033        
14 A" 681 652        
15 A" 218 208        

Unscaled Zero Point Vibrational Energy (zpe) 12332.2 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 11800.6 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 QCISD(T)=FULL/cc-pVTZ
ABC
3.23123 0.72287 0.66046

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.683 0.000
B2 -0.020 0.871 0.000
H3 1.054 -0.928 0.000
H4 -0.434 -1.143 0.893
H5 -0.434 -1.143 -0.893
H6 0.017 1.479 -1.021
H7 0.017 1.479 1.021

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55391.10141.08691.08692.39122.3912
B21.55392.09502.24212.24211.18911.1891
H31.10142.09501.74881.74882.81252.8125
H41.08692.24211.74881.78643.27802.6639
H51.08692.24211.74881.78642.66393.2780
H62.39121.18912.81253.27802.66392.0425
H72.39121.18912.81252.66393.27802.0425

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.747 C1 B2 H7 120.747
B2 C1 H3 102.851 B2 C1 H4 115.069
B2 C1 H5 115.069 H3 C1 H4 106.095
H3 C1 H5 106.095 H4 C1 H5 110.524
H6 B2 H7 118.379
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability