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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-65.687024
Energy at 298.15K-65.690947
HF Energy-65.441224
Nuclear repulsion energy31.689396
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=FULL/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' 3115 2959 14.90      
2 A' 3022 2870 3.52      
3 A' 2620 2488 95.60      
4 A' 1532 1455 2.82      
5 A' 1397 1327 56.62      
6 A' 1287 1222 29.93      
7 A' 1116 1060 69.52      
8 A' 987 938 10.35      
9 A' 603 573 0.32      
10 A" 3161 3002 18.83      
11 A" 2692 2557 145.27      
12 A" 1500 1425 4.23      
13 A" 1099 1044 20.04      
14 A" 705 670 0.79      
15 A" 127 120 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 12480.7 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 11854.2 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=FULL/6-31G*
ABC
3.18874 0.71135 0.65063

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.015 -0.687 0.000
B2 -0.015 0.877 0.000
H3 1.050 -0.981 0.000
H4 -0.457 -1.136 0.896
H5 -0.457 -1.136 -0.896
H6 0.016 1.496 -1.028
H7 0.016 1.496 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56361.10561.09551.09552.41302.4130
B21.56362.14202.24732.24731.20061.2006
H31.10562.14201.76041.76042.87482.8748
H41.09552.24731.76041.79223.29462.6776
H51.09552.24731.76041.79222.67763.2946
H62.41301.20062.87483.29462.67762.0562
H72.41301.20062.87482.67763.29462.0562

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.046 C1 B2 H7 121.046
B2 C1 H3 105.449 B2 C1 H4 114.222
B2 C1 H5 114.222 H3 C1 H4 106.222
H3 C1 H5 106.222 H4 C1 H5 109.766
H6 B2 H7 117.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability