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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: HSEh1PBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-2480.955697
Energy at 298.15K-2480.959750
HF Energy-2480.955697
Nuclear repulsion energy186.136025
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 HSEh1PBE/aug-cc-pVDZ
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 3178 3058 8.50      
2 A1 3060 2944 24.42      
3 A1 1441 1386 0.83      
4 A1 1294 1245 1.29      
5 A1 968 932 15.08      
6 A1 606 583 0.25      
7 A1 209 201 0.02      
8 A2 3169 3050 0.00      
9 A2 1422 1368 0.00      
10 A2 883 850 0.00      
11 A2 153 147 0.00      
12 B1 3163 3043 12.88      
13 B1 1431 1377 12.59      
14 B1 913 878 9.10      
15 B1 151 146 0.32      
16 B2 3179 3059 2.01      
17 B2 3064 2948 21.76      
18 B2 1434 1379 14.76      
19 B2 1270 1222 6.32      
20 B2 848 816 0.38      
21 B2 621 598 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 16228.2 cm-1
Scaled (by 0.9622) Zero Point Vibrational Energy (zpe) 15614.7 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 HSEh1PBE/aug-cc-pVDZ
ABC
0.37794 0.22801 0.15050

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.474
C2 0.000 1.458 -0.820
C3 0.000 -1.458 -0.820
H4 0.000 2.395 -0.251
H5 0.000 -2.395 -0.251
H6 0.900 1.416 -1.444
H7 -0.900 1.416 -1.444
H8 -0.900 -1.416 -1.444
H9 0.900 -1.416 -1.444

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.94941.94942.50252.50252.54832.54832.54832.5483
C21.94942.91631.09613.89501.09631.09633.07543.0754
C31.94942.91633.89501.09613.07543.07541.09631.0963
H42.50251.09613.89504.79041.78701.78704.09344.0934
H52.50253.89501.09614.79044.09344.09341.78701.7870
H62.54831.09633.07541.78704.09341.80023.35502.8312
H72.54831.09633.07541.78704.09341.80022.83123.3550
H82.54833.07541.09634.09341.78703.35502.83121.8002
H92.54833.07541.09634.09341.78702.83123.35501.8002

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.166 Se1 C2 H6 110.428
Se1 C2 H7 110.428 Se1 C3 H5 107.166
Se1 C3 H8 110.428 Se1 C3 H9 110.428
C2 Se1 C3 96.835 H4 C2 H6 109.189
H4 C2 H7 109.189 H5 C3 H8 109.189
H5 C3 H9 109.189 H6 C2 H7 110.369
H8 C3 H9 110.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.596      
2 C 0.236      
3 C 0.236      
4 H -0.235      
5 H -0.235      
6 H -0.149      
7 H -0.149      
8 H -0.149      
9 H -0.149      


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 -1.571 1.571
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.586 0.000 0.000
y 0.000 -29.267 0.000
z 0.000 0.000 -32.780
Traceless
 xyz
x -3.563 0.000 0.000
y 0.000 4.416 0.000
z 0.000 0.000 -0.853
Polar
3z2-r2-1.707
x2-y2-5.319
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.109 0.000 0.000
y 0.000 9.639 0.000
z 0.000 0.000 8.353


<r2> (average value of r2) Å2
<r2> 92.535
(<r2>)1/2 9.620