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

using model chemistry: M06-2X/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at M06-2X/daug-cc-pVTZ
 hartrees
Energy at 0K-928.657188
Energy at 298.15K 
HF Energy-928.657188
Nuclear repulsion energy292.153409
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 M06-2X/daug-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' 2281 2281 0.00 729.78 0.01 0.01
2 A' 2265 2265 0.00 69.78 0.52 0.69
3 A' 1027 1027 0.30 4.12 0.59 0.74
4 A' 969 969 0.00 9.82 0.42 0.59
5 A' 657 657 0.00 0.35 0.04 0.07
6 A' 498 498 0.00 9.26 0.04 0.07
7 A" 2271 2271 361.14 0.00 0.75 0.86
8 A" 951 951 169.57 0.00 0.75 0.86
9 A" 753 753 110.74 0.01 0.75 0.86
10 A" 165 165 0.41 0.00 0.75 0.86
11 A" 105 105 0.22 0.01 0.75 0.86
12 E' 2276 2276 236.80 44.12 0.75 0.86
12 E' 2276 2276 236.72 44.04 0.75 0.86
13 E' 2267 2267 47.24 4.62 0.72 0.84
13 E' 2267 2267 46.44 4.08 0.75 0.86
14 E' 1031 1031 125.82 2.17 0.75 0.86
14 E' 1031 1031 127.45 2.19 0.74 0.85
15 E' 981 981 205.38 2.12 0.75 0.85
15 E' 981 981 206.20 1.48 0.74 0.85
16 E' 950 950 513.81 7.42 0.75 0.86
16 E' 950 950 519.65 7.64 0.75 0.85
17 E' 695 695 0.45 5.42 0.75 0.85
17 E' 694 694 0.50 5.43 0.75 0.86
18 E' 177 177 0.44 0.13 0.71 0.83
18 E' 176 176 0.39 0.10 0.71 0.83
19 E" 2268 2268 0.00 99.81 0.75 0.86
19 E" 2268 2268 0.00 100.75 0.75 0.86
20 E" 949 949 0.00 7.40 0.75 0.86
20 E" 949 949 0.00 6.07 0.75 0.86
21 E" 695 695 0.00 2.22 0.75 0.86
21 E" 695 695 0.00 2.57 0.75 0.86
22 E" 81 81 0.00 0.32 0.75 0.86
22 E" 81 81 0.00 0.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18339.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18339.7 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 M06-2X/daug-cc-pVTZ
ABC
0.10338 0.10338 0.05460

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/daug-cc-pVTZ

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
Si2 0.000 1.740 0.000
Si3 -1.507 -0.870 0.000
Si4 1.507 -0.870 0.000
H5 -1.414 2.181 0.000
H6 -1.182 -2.315 0.000
H7 2.595 0.134 0.000
H8 0.682 2.278 1.198
H9 0.682 2.278 -1.198
H10 -2.314 -0.548 1.198
H11 -2.314 -0.548 -1.198
H12 1.632 -1.729 1.198
H13 1.632 -1.729 -1.198

Atom - Atom Distances (Å)
  N1 Si2 Si3 Si4 H5 H6 H7 H8 H9 H10 H11 H12 H13
N11.74021.74021.74022.59892.59892.59892.66242.66242.66242.66242.66242.6624
Si21.74023.01413.01411.48084.22363.05231.47951.47953.46773.46774.01694.0169
Si31.74023.01413.01413.05231.48084.22364.01694.01691.47951.47953.46773.4677
Si41.74023.01413.01414.22363.05231.48083.46773.46774.01694.01691.47951.4795
H52.59891.48083.05234.22364.50154.50152.41572.41573.11343.11345.09895.0989
H62.59894.22361.48083.05234.50154.50155.09895.09892.41572.41573.11343.1134
H72.59893.05234.22361.48084.50154.50153.11343.11345.09895.09892.41572.4157
H82.66241.47954.01693.46772.41575.09893.11342.39584.11824.76444.11824.7644
H92.66241.47954.01693.46772.41575.09893.11342.39584.76444.11824.76444.1182
H102.66243.46771.47954.01693.11342.41575.09894.11824.76442.39584.11824.7644
H112.66243.46771.47954.01693.11342.41575.09894.76444.11822.39584.76444.1182
H122.66244.01693.46771.47955.09893.11342.41574.11824.76444.11824.76442.3958
H132.66244.01693.46771.47955.09893.11342.41574.76444.11824.76444.11822.3958

picture of trisilylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 Si2 H5 107.313 N1 Si2 H8 111.307
N1 Si2 H9 111.307 N1 Si3 H6 107.313
N1 Si3 H10 111.307 N1 Si3 H11 111.307
N1 Si4 H7 107.313 N1 Si4 H12 111.307
N1 Si4 H13 111.307 Si2 N1 Si3 120.000
Si2 N1 Si4 120.000 Si3 N1 Si4 120.000
H5 Si2 H8 109.381 H5 Si2 H9 109.381
H6 Si3 H10 109.381 H6 Si3 H11 109.381
H7 Si4 H12 109.381 H7 Si4 H13 109.381
H8 Si2 H9 108.127 H10 Si3 H11 108.127
H12 Si4 H13 108.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 4.045      
2 Si -1.221      
3 Si -1.221      
4 Si -1.221      
5 H -0.194      
6 H -0.194      
7 H -0.194      
8 H 0.033      
9 H 0.033      
10 H 0.033      
11 H 0.033      
12 H 0.033      
13 H 0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.253 0.000 0.000
y 0.000 -51.253 0.000
z 0.000 0.000 -52.369
Traceless
 xyz
x 0.558 0.000 0.000
y 0.000 0.558 0.000
z 0.000 0.000 -1.116
Polar
3z2-r2-2.233
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 13.508 0.003 0.000
y 0.003 13.505 0.000
z 0.000 0.000 11.346


<r2> (average value of r2) Å2
<r2> 222.222
(<r2>)1/2 14.907