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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: B2PLYP=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-421.641639
Energy at 298.15K-421.649408
HF Energy-421.442293
Nuclear repulsion energy113.241693
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 B2PLYP=FULL/aug-cc-pVTZ
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' 3134 3007 11.59      
2 A' 3129 3002 21.35      
3 A' 3054 2930 16.76      
4 A' 2395 2297 85.68      
5 A' 1493 1433 10.68      
6 A' 1492 1431 2.97      
7 A' 1339 1285 1.57      
8 A' 1019 978 25.50      
9 A' 972 932 24.48      
10 A' 724 694 1.77      
11 A' 665 638 3.06      
12 A' 255 245 0.31      
13 A' 194 186 0.10      
14 A" 3135 3007 5.41      
15 A" 3130 3003 0.11      
16 A" 3057 2933 16.13      
17 A" 1484 1424 5.49      
18 A" 1479 1419 3.27      
19 A" 1324 1270 1.15      
20 A" 1038 996 24.56      
21 A" 837 803 0.35      
22 A" 732 702 2.53      
23 A" 712 683 13.84      
24 A" 183 175 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18486.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 17736.1 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 B2PLYP=FULL/aug-cc-pVTZ
ABC
0.53655 0.23241 0.17942

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.664 0.000
H2 1.353 -0.937 0.000
C3 -0.038 0.528 1.421
C4 -0.038 0.528 -1.421
H5 -1.024 0.980 1.500
H6 -1.024 0.980 -1.500
H7 0.154 -0.014 2.345
H8 0.154 -0.014 -2.345
H9 0.704 1.316 1.310
H10 0.704 1.316 -1.310

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41721.85431.85432.43442.43442.44112.44112.48702.4870
H21.41722.46962.46963.40273.40272.79102.79102.68602.6860
C31.85432.46962.84191.08843.11611.08803.80951.08802.9374
C41.85432.46962.84193.11611.08843.80951.08802.93741.0880
H52.43443.40271.08843.11613.00001.75804.14261.77073.3157
H62.43443.40273.11611.08843.00004.14261.75803.31571.7707
H72.44112.79101.08803.80951.75804.14264.69011.77243.9278
H82.44112.79103.80951.08804.14261.75804.69013.92781.7724
H92.48702.68601.08802.93741.77073.31571.77243.92782.6196
H102.48702.68602.93741.08803.31571.77073.92781.77242.6196

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.836 P1 C3 H7 109.348
P1 C3 H9 112.787 P1 C4 H6 108.836
P1 C4 H8 109.348 P1 C4 H10 112.787
H2 P1 C3 97.123 H2 P1 C4 97.123
C3 P1 C4 100.043 H5 C3 H7 107.761
H5 C3 H9 108.897 H6 C4 H8 107.761
H6 C4 H10 108.897 H7 C3 H9 109.087
H8 C4 H10 109.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability