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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD(T)/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 CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-65.735612
Energy at 298.15K-65.739529
HF Energy-65.447495
Nuclear repulsion energy31.438878
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(T)/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' 3070 2954        
2 A' 2963 2852        
3 A' 2558 2462        
4 A' 1459 1404        
5 A' 1315 1265        
6 A' 1242 1195        
7 A' 1079 1038        
8 A' 960 924        
9 A' 549 528        
10 A" 3122 3005        
11 A" 2627 2529        
12 A" 1414 1361        
13 A" 1055 1015        
14 A" 669 644        
15 A" 159 153        

Unscaled Zero Point Vibrational Energy (zpe) 12118.8 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 11664.3 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 CCSD(T)/aug-cc-pVDZ
ABC
3.13053 0.70149 0.64077

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.692 0.000
B2 -0.018 0.884 0.000
H3 1.065 -0.964 0.000
H4 -0.448 -1.155 0.906
H5 -0.448 -1.155 -0.906
H6 0.014 1.504 -1.039
H7 0.014 1.504 1.039

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57551.11711.10441.10442.42942.4294
B21.57552.14212.27202.27201.21071.2107
H31.11712.14211.77361.77362.87702.8770
H41.10442.27201.77361.81143.32672.7020
H51.10442.27201.77361.81142.70203.3267
H62.42941.21072.87703.32672.70202.0788
H72.42941.21072.87702.70203.32672.0788

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.807 C1 B2 H7 120.807
B2 C1 H3 104.115 B2 C1 H4 114.813
B2 C1 H5 114.813 H3 C1 H4 105.953
H3 C1 H5 105.953 H4 C1 H5 110.197
H6 B2 H7 118.297
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability