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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD(T)/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 QCISD(T)/cc-pVDZ
 hartrees
Energy at 0K-65.724703
Energy at 298.15K-65.728646
HF Energy-65.446102
Nuclear repulsion energy31.431544
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)/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' 3098 2953        
2 A' 2990 2850        
3 A' 2578 2457        
4 A' 1467 1398        
5 A' 1325 1263        
6 A' 1253 1194        
7 A' 1087 1036        
8 A' 969 923        
9 A' 549 524        
10 A" 3152 3005        
11 A" 2650 2526        
12 A" 1422 1355        
13 A" 1061 1011        
14 A" 678 646        
15 A" 172 164        

Unscaled Zero Point Vibrational Energy (zpe) 12225.5 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 11652.1 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)/cc-pVDZ
ABC
3.11939 0.70236 0.64125

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.692 0.000
B2 -0.019 0.882 0.000
H3 1.068 -0.954 0.000
H4 -0.447 -1.155 0.908
H5 -0.447 -1.155 -0.908
H6 0.017 1.504 -1.041
H7 0.017 1.504 1.041

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57471.11781.10521.10522.43102.4310
B21.57472.13382.27122.27121.21321.2132
H31.11782.13381.77721.77722.86882.8688
H41.10522.27121.77721.81563.32952.7028
H51.10522.27121.77721.81562.70283.3295
H62.43101.21322.86883.32952.70282.0821
H72.43101.21322.86882.70283.32952.0821

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.836 C1 B2 H7 120.836
B2 C1 H3 103.538 B2 C1 H4 114.757
B2 C1 H5 114.757 H3 C1 H4 106.162
H3 C1 H5 106.162 H4 C1 H5 110.456
H6 B2 H7 118.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability