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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-65.796597
Energy at 298.15K-65.800554
HF Energy-65.466454
Nuclear repulsion energy31.779190
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)/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' 3083 3005        
2 A' 2978 2903        
3 A' 2580 2515        
4 A' 1484 1447        
5 A' 1332 1298        
6 A' 1265 1233        
7 A' 1093 1065        
8 A' 973 948        
9 A' 555 541        
10 A" 3134 3055        
11 A" 2650 2583        
12 A" 1441 1404        
13 A" 1070 1043        
14 A" 683 666        
15 A" 171 166        

Unscaled Zero Point Vibrational Energy (zpe) 12244.8 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 11936.3 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)/cc-pVTZ
ABC
3.20758 0.71519 0.65355

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.686 0.000
B2 -0.018 0.875 0.000
H3 1.054 -0.949 0.000
H4 -0.440 -1.144 0.896
H5 -0.440 -1.144 -0.896
H6 0.015 1.489 -1.026
H7 0.015 1.489 1.026

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56171.10371.09081.09082.40532.4053
B21.56172.11572.24892.24891.19591.1959
H31.10372.11571.75291.75292.84102.8410
H41.09082.24891.75291.79173.29122.6750
H51.09082.24891.75291.79172.67503.2912
H62.40531.19592.84103.29122.67502.0519
H72.40531.19592.84102.67503.29122.0519

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.864 C1 B2 H7 120.864
B2 C1 H3 103.741 B2 C1 H4 114.796
B2 C1 H5 114.796 H3 C1 H4 106.027
H3 C1 H5 106.027 H4 C1 H5 110.427
H6 B2 H7 118.169
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability