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: B2PLYP=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-928.161470
Energy at 298.15K 
HF Energy-928.014415
Nuclear repulsion energy290.374150
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 B2PLYP=FULL/6-31G*
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' 2292 2174 0.00 541.41 0.00 0.00
2 A' 2280 2163 0.00 89.52 0.55 0.71
3 A' 1059 1005 0.00 16.47 0.75 0.85
4 A' 988 937 0.00 16.14 0.75 0.86
5 A' 672 637 0.00 1.16 0.03 0.06
6 A' 486 461 0.00 15.10 0.08 0.15
7 A" 2280 2163 526.13 0.00 0.75 0.86
8 A" 971 921 228.58 0.00 0.75 0.86
9 A" 753 714 122.49 0.00 0.75 0.86
10 A" 180 171 1.21 0.00 0.75 0.86
11 A" 86 81 0.01 0.00 0.75 0.86
12 E' 2292 2174 294.48 59.05 0.75 0.86
12 E' 2292 2174 294.57 59.05 0.75 0.86
13 E' 2274 2157 95.16 3.68 0.75 0.86
13 E' 2274 2157 95.11 3.68 0.75 0.86
14 E' 1022 969 42.27 6.04 0.75 0.86
14 E' 1022 969 42.25 6.04 0.75 0.86
15 E' 997 946 289.20 4.89 0.75 0.86
15 E' 997 946 289.22 4.89 0.75 0.86
16 E' 971 921 645.36 27.15 0.75 0.86
16 E' 971 921 645.41 27.15 0.75 0.86
17 E' 703 667 3.13 13.67 0.75 0.86
17 E' 703 667 3.13 13.68 0.75 0.86
18 E' 184 174 0.48 0.14 0.75 0.86
18 E' 184 174 0.48 0.14 0.75 0.86
19 E" 2276 2159 0.00 98.10 0.75 0.86
19 E" 2276 2159 0.00 98.10 0.75 0.86
20 E" 965 915 0.00 26.13 0.75 0.86
20 E" 965 915 0.00 26.13 0.75 0.86
21 E" 702 666 0.00 14.28 0.75 0.86
21 E" 702 666 0.00 14.29 0.75 0.86
22 E" 78 74 0.00 0.68 0.75 0.86
22 E" 78 74 0.00 0.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18487.4 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 17533.5 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 B2PLYP=FULL/6-31G*
ABC
0.10205 0.10205 0.05386

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
Si2 0.000 1.751 0.000
Si3 -1.517 -0.876 0.000
Si4 1.517 -0.876 0.000
H5 -1.415 2.198 0.000
H6 -1.195 -2.325 0.000
H7 2.611 0.127 0.000
H8 0.679 2.303 1.200
H9 0.679 2.303 -1.200
H10 -2.334 -0.563 1.200
H11 -2.334 -0.563 -1.200
H12 1.655 -1.740 1.200
H13 1.655 -1.740 -1.200

Atom - Atom Distances (Å)
  N1 Si2 Si3 Si4 H5 H6 H7 H8 H9 H10 H11 H12 H13
N11.75141.75141.75142.61412.61412.61412.68412.68412.68412.68412.68412.6841
Si21.75143.03353.03351.48424.24783.07501.48491.48493.49923.49924.04564.0456
Si31.75143.03353.03353.07501.48424.24784.04564.04561.48491.48493.49923.4992
Si41.75143.03353.03354.24783.07501.48423.49923.49924.04564.04561.48491.4849
H52.61411.48423.07504.24784.52774.52772.41632.41633.14723.14725.13525.1352
H62.61414.24781.48423.07504.52774.52775.13525.13522.41632.41633.14723.1472
H72.61413.07504.24781.48424.52774.52773.14723.14725.13525.13522.41632.4163
H82.68411.48494.04563.49922.41635.13523.14722.39914.15904.80134.15904.8013
H92.68411.48494.04563.49922.41635.13523.14722.39914.80134.15904.80134.1590
H102.68413.49921.48494.04563.14722.41635.13524.15904.80132.39914.15904.8013
H112.68413.49921.48494.04563.14722.41635.13524.80134.15902.39914.80134.1590
H122.68414.04563.49921.48495.13523.14722.41634.15904.80134.15904.80132.3991
H132.68414.04563.49921.48495.13523.14722.41634.80134.15904.80134.15902.3991

picture of trisilylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 Si2 H5 107.498 N1 Si2 H8 111.809
N1 Si2 H9 111.809 N1 Si3 H6 107.498
N1 Si3 H10 111.809 N1 Si3 H11 111.809
N1 Si4 H7 107.498 N1 Si4 H12 111.809
N1 Si4 H13 111.809 Si2 N1 Si3 120.000
Si2 N1 Si4 120.000 Si3 N1 Si4 120.000
H5 Si2 H8 108.946 H5 Si2 H9 108.946
H6 Si3 H10 108.946 H6 Si3 H11 108.946
H7 Si4 H12 108.946 H7 Si4 H13 108.946
H8 Si2 H9 107.772 H10 Si3 H11 107.772
H12 Si4 H13 107.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability