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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD/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/cc-pVTZ
 hartrees
Energy at 0K-65.786846
Energy at 298.15K-65.790803
HF Energy-65.466530
Nuclear repulsion energy31.795943
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/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' 3097 2960 13.55      
2 A' 2997 2864 4.07      
3 A' 2588 2473 108.08      
4 A' 1497 1431 1.88      
5 A' 1347 1287 62.88      
6 A' 1275 1218 22.44      
7 A' 1100 1051 63.71      
8 A' 976 932 12.15      
9 A' 570 545 0.80      
10 A" 3147 3007 17.03      
11 A" 2658 2539 155.27      
12 A" 1455 1390 3.21      
13 A" 1078 1030 19.39      
14 A" 688 658 1.41      
15 A" 160 153 0.92      

Unscaled Zero Point Vibrational Energy (zpe) 12316.2 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 11768.1 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/cc-pVTZ
ABC
3.21605 0.71504 0.65373

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.686 0.000
B2 -0.017 0.876 0.000
H3 1.051 -0.958 0.000
H4 -0.444 -1.141 0.893
H5 -0.444 -1.141 -0.893
H6 0.014 1.489 -1.025
H7 0.014 1.489 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56181.10171.08941.08942.40482.4048
B21.56182.12152.24642.24641.19501.1950
H31.10172.12151.75081.75082.84802.8480
H41.08942.24641.75081.78663.28722.6726
H51.08942.24641.75081.78662.67263.2872
H62.40481.19502.84803.28722.67262.0501
H72.40481.19502.84802.67263.28722.0501

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.884 C1 B2 H7 120.884
B2 C1 H3 104.260 B2 C1 H4 114.668
B2 C1 H5 114.668 H3 C1 H4 106.073
H3 C1 H5 106.073 H4 C1 H5 110.164
H6 B2 H7 118.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability