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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: TPSSh/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/TZVP
 hartrees
Energy at 0K-2481.341615
Energy at 298.15K-2481.345640
HF Energy-2481.341615
Nuclear repulsion energy185.315551
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 TPSSh/TZVP
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 3147 3033 12.42      
2 A1 3048 2938 27.36      
3 A1 1495 1441 0.49      
4 A1 1332 1283 5.86      
5 A1 983 947 19.95      
6 A1 579 558 0.42      
7 A1 202 194 0.02      
8 A2 3143 3029 0.00      
9 A2 1476 1422 0.00      
10 A2 896 863 0.00      
11 A2 155 150 0.00      
12 B1 3138 3024 24.21      
13 B1 1484 1430 11.77      
14 B1 927 893 12.01      
15 B1 146 141 0.51      
16 B2 3147 3033 3.73      
17 B2 3051 2940 26.63      
18 B2 1489 1435 15.60      
19 B2 1309 1261 12.00      
20 B2 859 828 0.06      
21 B2 594 572 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 16299.4 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 15707.7 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 TPSSh/TZVP
ABC
0.37590 0.22488 0.14874

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.475
C2 0.000 1.471 -0.825
C3 0.000 -1.471 -0.825
H4 0.000 2.396 -0.248
H5 0.000 -2.396 -0.248
H6 0.896 1.428 -1.443
H7 -0.896 1.428 -1.443
H8 -0.896 -1.428 -1.443
H9 0.896 -1.428 -1.443

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96311.96312.50282.50282.55372.55372.55372.5537
C21.96312.94211.08963.90961.08951.08953.09663.0966
C31.96312.94213.90961.08963.09663.09661.08951.0895
H42.50281.08963.90964.79171.77961.77964.10504.1050
H52.50283.90961.08964.79174.10504.10501.77961.7796
H62.55371.08953.09661.77964.10501.79193.37152.8558
H72.55371.08953.09661.77964.10501.79192.85583.3715
H82.55373.09661.08954.10501.77963.37152.85581.7919
H92.55373.09661.08954.10501.77962.85583.37151.7919

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 106.607 Se1 C2 H6 110.253
Se1 C2 H7 110.253 Se1 C3 H5 106.607
Se1 C3 H8 110.253 Se1 C3 H9 110.253
C2 Se1 C3 97.068 H4 C2 H6 109.498
H4 C2 H7 109.498 H5 C3 H8 109.498
H5 C3 H9 109.498 H6 C2 H7 110.642
H8 C3 H9 110.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.069      
2 C -0.348      
3 C -0.348      
4 H 0.130      
5 H 0.130      
6 H 0.126      
7 H 0.126      
8 H 0.126      
9 H 0.126      


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 -1.587 1.587
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.394 0.000 0.000
y 0.000 8.780 0.000
z 0.000 0.000 7.336


<r2> (average value of r2) Å2
<r2> 93.103
(<r2>)1/2 9.649