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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2/aug-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 MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-65.758838
Energy at 298.15K-65.762801
HF Energy-65.466840
Nuclear repulsion energy31.862734
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 MP2/aug-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' 3131 2983 9.88      
2 A' 3019 2876 2.56      
3 A' 2619 2496 110.66      
4 A' 1497 1426 2.21      
5 A' 1335 1272 75.94      
6 A' 1274 1214 16.30      
7 A' 1100 1049 65.04      
8 A' 981 935 12.79      
9 A' 555 529 0.77      
10 A" 3186 3036 10.89      
11 A" 2694 2567 154.71      
12 A" 1449 1381 3.83      
13 A" 1074 1023 18.66      
14 A" 687 655 1.36      
15 A" 170 162 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 12385.4 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 11802.1 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 MP2/aug-cc-pVTZ
ABC
3.22466 0.71884 0.65688

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.685 0.000
B2 -0.019 0.874 0.000
H3 1.052 -0.943 0.000
H4 -0.438 -1.142 0.893
H5 -0.438 -1.142 -0.893
H6 0.015 1.484 -1.024
H7 0.015 1.484 1.024

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55811.10111.08771.08772.39812.3981
B21.55812.10862.24442.24441.19231.1923
H31.10112.10861.74821.74822.83072.8307
H41.08772.24441.74821.78613.28272.6682
H51.08772.24441.74821.78612.66823.2827
H62.39811.19232.83073.28272.66822.0474
H72.39811.19232.83072.66823.28272.0474

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.788 C1 B2 H7 120.788
B2 C1 H3 103.592 B2 C1 H4 114.894
B2 C1 H5 114.894 H3 C1 H4 106.014
H3 C1 H5 106.014 H4 C1 H5 110.381
H6 B2 H7 118.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability