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All results from a given calculation for NH2BHNH2 (diaminoborane)

using model chemistry: MP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-137.170469
Energy at 298.15K 
HF Energy-136.634031
Nuclear repulsion energy68.747104
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/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 A1 3772 3582 32.55      
2 A1 3656 3471 7.43      
3 A1 2651 2517 149.39      
4 A1 1638 1556 25.09      
5 A1 1200 1139 35.87      
6 A1 929 882 2.73      
7 A1 395 375 0.55      
8 A2 460 437 0.00      
9 A2 310 294 0.00      
10 B1 942 894 8.28      
11 B1 605 575 3.19      
12 B1 355 337 379.25      
13 B2 3773 3583 27.49      
14 B2 3656 3471 58.70      
15 B2 1642 1559 247.31      
16 B2 1441 1368 197.24      
17 B2 1110 1054 2.05      
18 B2 816 775 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 14674.8 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 13933.7 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/cc-pVTZ
ABC
1.77130 0.30234 0.25826

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.501
H2 0.000 0.000 1.694
N3 0.000 1.241 -0.177
N4 0.000 -1.241 -0.177
H5 0.000 2.113 0.315
H6 0.000 1.341 -1.175
H7 0.000 -2.113 0.315
H8 0.000 -1.341 -1.175

Atom - Atom Distances (Å)
  B1 H2 N3 N4 H5 H6 H7 H8
B11.19321.41441.41442.12132.14682.12132.1468
H21.19322.24572.24572.52363.16762.52363.1676
N31.41442.24572.48211.00121.00333.39002.7680
N41.41442.24572.48213.39002.76801.00121.0033
H52.12132.52361.00123.39001.67854.22613.7615
H62.14683.16761.00332.76801.67853.76152.6814
H72.12132.52363.39001.00124.22613.76151.6785
H82.14683.16762.76801.00333.76152.68141.6785

picture of diaminoborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 N3 H5 121.910 B1 N3 H6 124.364
B1 N4 H7 121.910 B1 N4 H8 124.364
H2 B1 N3 118.664 H2 B1 N4 118.664
N3 B1 N4 122.673 H5 N3 H6 113.726
H7 N4 H8 113.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability