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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: MP3=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-420.733928
Energy at 298.15K-420.741612
HF Energy-420.449027
Nuclear repulsion energy110.004965
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 MP3=FULL/6-31G
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' 3167 3167 17.57      
2 A' 3158 3158 30.76      
3 A' 3068 3068 21.18      
4 A' 2210 2210 144.78      
5 A' 1540 1540 3.09      
6 A' 1538 1538 17.07      
7 A' 1420 1420 0.82      
8 A' 1051 1051 28.46      
9 A' 1019 1019 41.62      
10 A' 714 714 5.99      
11 A' 631 631 1.50      
12 A' 248 248 0.27      
13 A' 176 176 0.08      
14 A" 3167 3167 6.38      
15 A" 3159 3159 3.79      
16 A" 3070 3070 21.29      
17 A" 1532 1532 10.85      
18 A" 1528 1528 1.69      
19 A" 1403 1403 1.19      
20 A" 1039 1039 26.41      
21 A" 897 897 0.47      
22 A" 726 726 1.64      
23 A" 683 683 7.94      
24 A" 165 165 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 18655.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18655.3 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 MP3=FULL/6-31G
ABC
0.49916 0.21921 0.16802

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.040 -0.692 0.000
H2 1.389 -0.990 0.000
C3 -0.040 0.553 1.468
C4 -0.040 0.553 -1.468
H5 -1.038 1.002 1.545
H6 -1.038 1.002 -1.545
H7 0.173 0.012 2.399
H8 0.173 0.012 -2.399
H9 0.705 1.349 1.334
H10 0.705 1.349 -1.334

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.45931.92481.92482.50052.50052.50872.50872.54932.5493
H21.45932.56472.56473.49943.49942.87002.87002.77862.7786
C31.92482.56472.93631.09733.20611.09713.91021.09793.0070
C41.92482.56472.93633.20611.09733.91021.09713.00701.0979
H52.50053.49941.09733.20613.09071.78154.24271.78953.3839
H62.50053.49943.20611.09733.09074.24271.78153.38391.7895
H72.50872.87001.09713.91021.78154.24274.79721.78984.0008
H82.50872.87003.91021.09714.24271.78154.79724.00081.7898
H92.54932.77861.09793.00701.78953.38391.78984.00082.6688
H102.54932.77863.00701.09793.38391.78954.00081.78982.6688

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.546 P1 C3 H7 109.144
P1 C3 H9 112.079 P1 C4 H6 108.546
P1 C4 H8 109.144 P1 C4 H10 112.079
H2 P1 C3 97.604 H2 P1 C4 97.604
C3 P1 C4 99.416 H5 C3 H7 108.547
H5 C3 H9 109.205 H6 C4 H8 108.547
H6 C4 H10 109.205 H7 C3 H9 109.253
H8 C4 H10 109.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability