return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for N(SiH3)3 (trisilylamine)

using model chemistry: AM1

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at AM1
 hartrees
Energy at 0K 
Energy at 298.15K-0.049019
HF Energy-0.049019
Nuclear repulsion energy77.959650
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 AM1
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' 2234 2130 0.00 942.37 0.00 0.00
2 A' 2226 2122 0.00 254.10 0.69 0.81
3 A' 864 824 0.00 179.57 0.44 0.61
4 A' 830 791 0.00 44.11 0.52 0.68
5 A' 568 541 0.00 0.32 0.73 0.85
6 A' 508 484 0.00 4.32 0.19 0.32
7 A" 2225 2122 12.86 0.00 0.00 0.00
8 A" 837 798 31.99 0.00 0.00 0.00
9 A" 728 695 275.98 0.00 0.00 0.00
10 A" 270 257 0.66 0.00 0.00 0.00
11 A" 55 52 3.46 0.00 0.00 0.00
12 E' 2236 2132 1.21 5.92 0.75 0.86
12 E' 2236 2132 1.21 5.92 0.75 0.86
13 E' 2227 2123 2.28 264.80 0.75 0.86
13 E' 2227 2123 2.28 264.80 0.75 0.86
14 E' 1061 1012 151.04 0.50 0.75 0.86
14 E' 1061 1012 151.04 0.50 0.75 0.86
15 E' 854 814 253.70 79.38 0.75 0.86
15 E' 854 814 253.70 79.38 0.75 0.86
16 E' 827 788 91.87 151.13 0.75 0.86
16 E' 827 788 91.87 151.13 0.75 0.86
17 E' 607 579 26.81 1.56 0.75 0.86
17 E' 607 579 26.81 1.56 0.75 0.86
18 E' 119 113 0.54 0.10 0.75 0.86
18 E' 119 113 0.54 0.10 0.75 0.86
19 E" 2225 2121 0.00 407.66 0.75 0.86
19 E" 2225 2121 0.00 407.66 0.75 0.86
20 E" 835 796 0.00 177.71 0.75 0.86
20 E" 835 796 0.00 177.71 0.75 0.86
21 E" 612 584 0.00 0.09 0.75 0.86
21 E" 612 584 0.00 0.09 0.75 0.86
22 E" 45 43 0.00 0.25 0.75 0.86
22 E" 45 43 0.00 0.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17319.2 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 16513.9 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 AM1
ABC
0.10536 0.10536 0.05558

See section I.F.4 to change rotational constant units
Geometric Data calculated at AM1

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
Si2 0.000 1.718 0.000
Si3 -1.488 -0.859 0.000
Si4 1.488 -0.859 0.000
H5 -1.365 2.264 0.000
H6 -1.278 -2.314 0.000
H7 2.643 0.050 0.000
H8 0.674 2.288 1.176
H9 0.674 2.288 -1.176
H10 -2.318 -0.561 1.176
H11 -2.318 -0.561 -1.176
H12 1.645 -1.727 1.176
H13 1.645 -1.727 -1.176

Atom - Atom Distances (Å)
  N1 Si2 Si3 Si4 H5 H6 H7 H8 H9 H10 H11 H12 H13
N11.71811.71811.71812.64382.64382.64382.65922.65922.65922.65922.65922.6592
Si21.71812.97592.97591.47004.23003.12571.47011.47013.45683.45683.99493.9949
Si31.71812.97592.97593.12571.47004.23003.99493.99491.47011.47013.45683.4568
Si41.71812.97592.97594.23003.12571.47003.45683.45683.99493.99491.47011.4701
H52.64381.47003.12574.23004.57914.57912.35342.35343.20493.20495.13545.1354
H62.64384.23001.47003.12574.57914.57915.13545.13542.35342.35343.20493.2049
H72.64383.12574.23001.47004.57914.57913.20493.20495.13545.13542.35342.3534
H82.65921.47013.99493.45682.35345.13543.20492.35174.13114.75364.13114.7536
H92.65921.47013.99493.45682.35345.13543.20492.35174.75364.13114.75364.1311
H102.65923.45681.47013.99493.20492.35345.13544.13114.75362.35174.13114.7536
H112.65923.45681.47013.99493.20492.35345.13544.75364.13112.35174.75364.1311
H122.65923.99493.45681.47015.13543.20492.35344.13114.75364.13114.75362.3517
H132.65923.99493.45681.47015.13543.20492.35344.75364.13114.75364.13112.3517

picture of trisilylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 Si2 H5 111.808 N1 Si2 H8 112.807
N1 Si2 H9 112.807 N1 Si3 H6 111.808
N1 Si3 H10 112.807 N1 Si3 H11 112.807
N1 Si4 H7 111.808 N1 Si4 H12 112.807
N1 Si4 H13 112.807 Si2 N1 Si3 120.000
Si2 N1 Si4 120.000 Si3 N1 Si4 120.000
H5 Si2 H8 106.346 H5 Si2 H9 106.346
H6 Si3 H10 106.346 H6 Si3 H11 106.346
H7 Si4 H12 106.346 H7 Si4 H13 106.346
H8 Si2 H9 106.232 H10 Si3 H11 106.232
H12 Si4 H13 106.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability