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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-421.745966
Energy at 298.15K-421.753587
HF Energy-421.745966
Nuclear repulsion energy111.493228
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' 3033 3021 18.54      
2 A' 3028 3017 32.56      
3 A' 2957 2945 23.98      
4 A' 2263 2254 101.66      
5 A' 1447 1441 1.92      
6 A' 1445 1439 13.69      
7 A' 1305 1300 0.25      
8 A' 992 989 39.18      
9 A' 947 943 36.14      
10 A' 705 703 1.62      
11 A' 612 609 2.68      
12 A' 245 244 0.32      
13 A' 187 186 0.25      
14 A" 3033 3021 7.95      
15 A" 3029 3018 0.51      
16 A" 2958 2947 22.22      
17 A" 1437 1432 10.27      
18 A" 1432 1427 1.11      
19 A" 1288 1283 0.55      
20 A" 1001 997 28.73      
21 A" 816 812 0.56      
22 A" 713 710 0.00      
23 A" 658 655 15.97      
24 A" 175 174 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 17852.1 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 17782.5 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
0.52284 0.22390 0.17327

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 -0.673 0.000
H2 1.376 -0.929 0.000
C3 -0.038 0.535 1.448
C4 -0.038 0.535 -1.448
H5 -1.039 0.979 1.543
H6 -1.039 0.979 -1.543
H7 0.169 -0.017 2.375
H8 0.169 -0.017 -2.375
H9 0.699 1.343 1.344
H10 0.699 1.343 -1.344

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.43701.88641.88642.47242.47242.47292.47292.53292.5329
H21.43702.49802.49803.44263.44262.81602.81602.72462.7246
C31.88642.49802.89701.09893.18581.09883.86911.09892.9990
C41.88642.49802.89703.18581.09893.86911.09882.99901.0989
H52.47243.44261.09893.18583.08651.77304.21981.78743.3898
H62.47243.44263.18581.09893.08654.21981.77303.38981.7874
H72.47292.81601.09883.86911.77304.21984.75071.78783.9956
H82.47292.81603.86911.09884.21981.77304.75073.99561.7878
H92.53292.72461.09892.99901.78743.38981.78783.99562.6877
H102.53292.72462.99901.09893.38981.78743.99561.78782.6877

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.950 P1 C3 H7 109.000
P1 C3 H9 113.444 P1 C4 H6 108.950
P1 C4 H8 109.000 P1 C4 H10 113.444
H2 P1 C3 96.532 H2 P1 C4 96.532
C3 P1 C4 100.324 H5 C3 H7 107.563
H5 C3 H9 108.837 H6 C4 H8 107.563
H6 C4 H10 108.837 H7 C3 H9 108.884
H8 C4 H10 108.884
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 0.289      
2 H -0.026      
3 C -0.519      
4 C -0.519      
5 H 0.129      
6 H 0.129      
7 H 0.134      
8 H 0.134      
9 H 0.125      
10 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.417 1.203 0.000 1.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.082 -1.383 0.000
y -1.383 -31.013 0.000
z 0.000 0.000 -27.587
Traceless
 xyz
x 0.218 -1.383 0.000
y -1.383 -2.678 0.000
z 0.000 0.000 2.460
Polar
3z2-r24.920
x2-y21.931
xy-1.383
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.728 -0.245 0.000
y -0.245 7.261 0.000
z 0.000 0.000 8.400


<r2> (average value of r2) Å2
<r2> 84.842
(<r2>)1/2 9.211