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All results from a given calculation for CH3PHCH3 (dimethylphosphine)

using model chemistry: MP2=FULL/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 MP2=FULL/TZVP
 hartrees
Energy at 0K-421.078845
Energy at 298.15K-421.086578
HF Energy-420.576726
Nuclear repulsion energy113.088182
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 MP2=FULL/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' 3193 3042 11.35      
2 A' 3189 3039 22.60      
3 A' 3088 2942 16.47      
4 A' 2456 2340 96.07      
5 A' 1493 1422 4.94      
6 A' 1484 1414 11.05      
7 A' 1367 1302 1.44      
8 A' 1034 986 27.54      
9 A' 981 935 27.93      
10 A' 740 705 2.56      
11 A' 685 653 2.59      
12 A' 262 249 0.48      
13 A' 190 181 0.07      
14 A" 3194 3043 5.59      
15 A" 3191 3041 0.00      
16 A" 3090 2944 16.72      
17 A" 1481 1411 6.48      
18 A" 1469 1400 3.95      
19 A" 1348 1284 1.87      
20 A" 1047 997 27.71      
21 A" 848 808 0.13      
22 A" 742 707 8.12      
23 A" 720 686 8.25      
24 A" 141 134 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18716.4 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 17831.1 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 MP2=FULL/TZVP
ABC
0.52854 0.23344 0.17915

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.038 -0.671 0.000
H2 1.354 -0.934 0.000
C3 -0.038 0.533 1.417
C4 -0.038 0.533 -1.417
H5 -1.027 0.980 1.499
H6 -1.027 0.980 -1.499
H7 0.163 0.002 2.346
H8 0.163 0.002 -2.346
H9 0.699 1.324 1.296
H10 0.699 1.324 -1.296

Atom - Atom Distances (Å)
  P1 H2 C3 C4 H5 H6 H7 H8 H9 H10
P11.41621.85961.85962.44012.44012.44862.44862.49092.4909
H21.41622.46882.46883.40283.40282.79172.79172.68442.6844
C31.85962.46882.83441.08873.11211.08853.80551.08842.9204
C41.85962.46882.83443.11211.08873.80551.08852.92041.0884
H52.44013.40281.08873.11212.99881.75824.14251.77163.3029
H62.44013.40283.11211.08872.99884.14251.75823.30291.7716
H72.44862.79171.08853.80551.75824.14254.69141.77193.9110
H82.44862.79173.80551.08854.14251.75824.69143.91101.7719
H92.49092.68441.08842.92041.77163.30291.77193.91102.5911
H102.49092.68442.92041.08843.30291.77163.91101.77192.5911

picture of dimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C3 H5 108.890 P1 C3 H7 109.523
P1 C3 H9 112.697 P1 C4 H6 108.890
P1 C4 H8 109.523 P1 C4 H10 112.697
H2 P1 C3 96.883 H2 P1 C4 96.883
C3 P1 C4 99.299 H5 C3 H7 107.714
H5 C3 H9 108.924 H6 C4 H8 107.714
H6 C4 H10 108.924 H7 C3 H9 108.967
H8 C4 H10 108.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability