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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: BLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-421.735043
Energy at 298.15K-421.742671
HF Energy-421.735043
Nuclear repulsion energy111.515285
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 BLYP/6-311G*
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' 3030 3023 22.51      
2 A' 3025 3018 38.66      
3 A' 2956 2948 27.36      
4 A' 2238 2233 113.61      
5 A' 1466 1462 6.32      
6 A' 1462 1459 12.01      
7 A' 1324 1320 0.49      
8 A' 1002 999 43.83      
9 A' 956 954 38.84      
10 A' 709 707 1.64      
11 A' 614 612 2.58      
12 A' 246 246 0.33      
13 A' 188 187 0.27      
14 A" 3030 3023 9.85      
15 A" 3026 3019 1.13      
16 A" 2957 2950 25.73      
17 A" 1454 1451 12.78      
18 A" 1451 1447 0.28      
19 A" 1305 1302 1.23      
20 A" 1007 1004 30.22      
21 A" 823 821 0.72      
22 A" 715 713 0.00      
23 A" 659 658 15.83      
24 A" 177 176 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 17909.7 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 17865.0 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 BLYP/6-311G*
ABC
0.52143 0.22452 0.17350

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.675 0.000
H2 1.379 -0.924 0.000
C3 -0.038 0.535 1.446
C4 -0.038 0.535 -1.446
H5 -1.038 0.982 1.542
H6 -1.038 0.982 -1.542
H7 0.168 -0.012 2.376
H8 0.168 -0.012 -2.376
H9 0.698 1.345 1.343
H10 0.698 1.345 -1.343

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.43901.88531.88532.47462.47462.47552.47552.53492.5349
H21.43902.49572.49573.44303.44302.81882.81882.72302.7230
C31.88532.49572.89101.09923.18231.09913.86611.09932.9955
C41.88532.49572.89103.18231.09923.86611.09912.99551.0993
H52.47463.44301.09923.18233.08491.77104.21861.78533.3871
H62.47463.44303.18231.09923.08494.21861.77103.38711.7853
H72.47552.81881.09913.86611.77104.21864.75231.78613.9941
H82.47552.81883.86611.09914.21861.77104.75233.99411.7861
H92.53492.72301.09932.99551.78533.38711.78613.99412.6857
H102.53492.72302.99551.09933.38711.78533.99411.78612.6857

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 109.167 P1 C3 H7 109.241
P1 C3 H9 113.646 P1 C4 H6 109.167
P1 C4 H8 109.241 P1 C4 H10 113.646
H2 P1 C3 96.384 H2 P1 C4 96.384
C3 P1 C4 100.120 H5 C3 H7 107.340
H5 C3 H9 108.587 H6 C4 H8 107.340
H6 C4 H10 108.587 H7 C3 H9 108.669
H8 C4 H10 108.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.283      
2 H 0.033      
3 C -0.814      
4 C -0.814      
5 H 0.219      
6 H 0.219      
7 H 0.223      
8 H 0.223      
9 H 0.214      
10 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.420 1.220 0.000 1.290
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.118 -1.395 0.000
y -1.395 -31.096 0.000
z 0.000 0.000 -27.646
Traceless
 xyz
x 0.253 -1.395 0.000
y -1.395 -2.714 0.000
z 0.000 0.000 2.461
Polar
3z2-r24.923
x2-y21.978
xy-1.395
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.632 -0.239 0.000
y -0.239 7.145 0.000
z 0.000 0.000 8.240


<r2> (average value of r2) Å2
<r2> 84.824
(<r2>)1/2 9.210