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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: MP3/TZVP

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/TZVP
 hartrees
Energy at 0K-421.056618
Energy at 298.15K-421.064341
HF Energy-420.576740
Nuclear repulsion energy112.853278
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/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 A' 3191 2985 15.39      
2 A' 3186 2979 28.98      
3 A' 3096 2896 19.06      
4 A' 2445 2286 101.36      
5 A' 1499 1401 4.46      
6 A' 1490 1393 10.00      
7 A' 1378 1288 0.91      
8 A' 1038 971 27.42      
9 A' 985 921 26.55      
10 A' 739 691 2.96      
11 A' 681 637 2.69      
12 A' 262 245 0.52      
13 A' 186 174 0.06      
14 A" 3192 2985 8.63      
15 A" 3187 2981 0.00      
16 A" 3099 2898 19.27      
17 A" 1488 1392 5.98      
18 A" 1476 1380 3.39      
19 A" 1359 1271 1.00      
20 A" 1051 982 28.11      
21 A" 851 796 0.08      
22 A" 739 691 4.92      
23 A" 720 674 10.55      
24 A" 137 129 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18736.4 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 17522.3 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/TZVP
ABC
0.52753 0.23192 0.17816

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.672 0.000
H2 1.355 -0.935 0.000
C3 -0.038 0.533 1.422
C4 -0.038 0.533 -1.422
H5 -1.027 0.982 1.506
H6 -1.027 0.982 -1.506
H7 0.165 0.001 2.350
H8 0.165 0.001 -2.350
H9 0.699 1.325 1.300
H10 0.699 1.325 -1.300

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41761.86441.86442.44592.44592.45272.45272.49442.4944
H21.41762.47382.47383.40843.40842.79522.79522.68852.6885
C31.86442.47382.84491.08923.12381.08873.81521.08882.9296
C41.86442.47382.84493.12381.08923.81521.08872.92961.0888
H52.44593.40841.08923.12383.01301.75934.15401.77223.3128
H62.44593.40843.12381.08923.01304.15401.75933.31281.7722
H72.45272.79521.08873.81521.75934.15404.69981.77253.9194
H82.45272.79523.81521.08874.15401.75934.69983.91941.7725
H92.49442.68851.08882.92961.77223.31281.77253.91942.6002
H102.49442.68852.92961.08883.31281.77223.91941.77252.6002

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.969 P1 C3 H7 109.489
P1 C3 H9 112.602 P1 C4 H6 108.969
P1 C4 H8 109.489 P1 C4 H10 112.602
H2 P1 C3 96.889 H2 P1 C4 96.889
C3 P1 C4 99.449 H5 C3 H7 107.772
H5 C3 H9 108.914 H6 C4 H8 107.772
H6 C4 H10 108.914 H7 C3 H9 108.978
H8 C4 H10 108.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability