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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: PBEPBE/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 PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-2480.870712
Energy at 298.15K-2480.874651
HF Energy-2480.870712
Nuclear repulsion energy184.468398
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 PBEPBE/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 3094 3075 9.52      
2 A1 2979 2961 25.01      
3 A1 1392 1383 0.55      
4 A1 1241 1234 1.78      
5 A1 932 926 13.46      
6 A1 574 571 0.25      
7 A1 201 200 0.02      
8 A2 3085 3066 0.00      
9 A2 1374 1365 0.00      
10 A2 850 844 0.00      
11 A2 150 149 0.00      
12 B1 3078 3059 13.75      
13 B1 1383 1374 11.18      
14 B1 879 874 9.25      
15 B1 147 146 0.31      
16 B2 3095 3076 1.86      
17 B2 2982 2964 21.65      
18 B2 1385 1376 14.72      
19 B2 1218 1211 7.39      
20 B2 816 811 0.39      
21 B2 588 584 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 15720.2 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 15624.3 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 PBEPBE/aug-cc-pVDZ
ABC
0.37047 0.22414 0.14776

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.479
C2 0.000 1.471 -0.829
C3 0.000 -1.471 -0.829
H4 0.000 2.413 -0.253
H5 0.000 -2.413 -0.253
H6 0.907 1.428 -1.457
H7 -0.907 1.428 -1.457
H8 -0.907 -1.428 -1.457
H9 0.907 -1.428 -1.457

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96831.96832.52162.52162.57072.57072.57072.5707
C21.96832.94221.10373.92641.10391.10393.10183.1018
C31.96832.94223.92641.10373.10183.10181.10391.1039
H42.52161.10373.92644.82591.80021.80024.12594.1259
H52.52163.92641.10374.82594.12594.12591.80021.8002
H62.57071.10393.10181.80024.12591.81363.38312.8560
H72.57071.10393.10181.80024.12591.81362.85603.3831
H82.57073.10181.10394.12591.80023.38312.85601.8136
H92.57073.10181.10394.12591.80022.85603.38311.8136

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 106.947 Se1 C2 H6 110.414
Se1 C2 H7 110.414 Se1 C3 H5 106.947
Se1 C3 H8 110.414 Se1 C3 H9 110.414
C2 Se1 C3 96.733 H4 C2 H6 109.265
H4 C2 H7 109.265 H5 C3 H8 109.265
H5 C3 H9 109.265 H6 C2 H7 110.457
H8 C3 H9 110.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.540      
2 C 0.387      
3 C 0.387      
4 H -0.283      
5 H -0.283      
6 H -0.187      
7 H -0.187      
8 H -0.187      
9 H -0.187      


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 -1.494 1.494
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.839 0.000 0.000
y 0.000 -29.597 0.000
z 0.000 0.000 -32.969
Traceless
 xyz
x -3.557 0.000 0.000
y 0.000 4.307 0.000
z 0.000 0.000 -0.751
Polar
3z2-r2-1.501
x2-y2-5.242
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.403 0.000 0.000
y 0.000 10.056 0.000
z 0.000 0.000 8.714


<r2> (average value of r2) Å2
<r2> 93.997
(<r2>)1/2 9.695