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All results from a given calculation for P(CH3)3 (trimethylphosphine)

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-458.757738
Energy at 298.15K-458.767549
HF Energy-458.757738
Nuclear repulsion energy177.688267
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 B1B95/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3136 2995 32.03      
2 A1 3050 2912 24.77      
3 A1 1552 1482 15.28      
4 A1 1407 1343 8.94      
5 A1 1025 979 51.26      
6 A1 674 644 0.05      
7 A1 295 281 0.21      
8 A2 3148 3006 0.00      
9 A2 1519 1450 0.00      
10 A2 833 795 0.00      
11 A2 188 180 0.00      
12 E 3149 3007 12.24      
12 E 3149 3007 12.24      
13 E 3136 2995 3.37      
13 E 3136 2995 3.38      
14 E 3053 2915 12.62      
14 E 3053 2915 12.63      
15 E 1537 1468 16.76      
15 E 1537 1468 16.76      
16 E 1531 1462 6.48      
16 E 1531 1462 6.49      
17 E 1382 1320 15.74      
17 E 1382 1320 15.73      
18 E 1005 959 28.49      
18 E 1005 959 28.49      
19 E 882 842 2.26      
19 E 882 842 2.26      
20 E 728 695 11.62      
20 E 728 695 11.62      
21 E 253 242 0.07      
21 E 253 242 0.07      
22 E 213 203 0.06      
22 E 213 203 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25282.1 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 24141.9 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 B1B95/3-21G*
ABC
0.19368 0.19368 0.12591

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.617
C2 0.000 1.612 -0.284
C3 1.396 -0.806 -0.284
C4 -1.396 -0.806 -0.284
H5 0.000 1.473 -1.371
H6 -0.884 2.192 -0.004
H7 0.884 2.192 -0.004
H8 1.275 -0.736 -1.371
H9 2.341 -0.330 -0.004
H10 1.456 -1.862 -0.004
H11 -1.275 -0.736 -1.371
H12 -1.456 -1.862 -0.004
H13 -2.341 -0.330 -0.004

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.84691.84691.84692.47412.44402.44402.47412.44402.44402.47412.44402.4440
C21.84692.79202.79201.09571.09411.09412.88483.05453.77722.88483.77723.0545
C31.84692.79202.79202.88483.77723.05451.09571.09411.09412.88483.05453.7772
C41.84692.79202.79202.88483.05453.77722.88483.77723.05451.09571.09411.0941
H52.47411.09572.88482.88481.78021.78022.55063.25563.88712.55063.88713.2556
H62.44401.09413.77723.05451.78021.76823.88714.09424.68123.25564.09422.9130
H72.44401.09413.05453.77721.78021.76823.25562.91304.09423.88714.68124.0942
H82.47412.88481.09572.88482.55063.88713.25561.78021.78022.55063.25563.8871
H92.44403.05451.09413.77723.25564.09422.91301.78021.76823.88714.09424.6812
H102.44403.77721.09413.05453.88714.68124.09421.78021.76823.25562.91304.0942
H112.47412.88482.88481.09572.55063.25563.88712.55063.88713.25561.78021.7802
H122.44403.77723.05451.09413.88714.09424.68123.25564.09422.91301.78021.7682
H132.44403.05453.77721.09413.25562.91304.09423.88714.68124.09421.78021.7682

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.904 P1 C2 H6 109.738
P1 C2 H7 109.738 P1 C3 H8 111.904
P1 C3 H9 109.738 P1 C3 H10 109.738
P1 C4 H11 111.904 P1 C4 H12 109.738
P1 C4 H13 109.738 C2 P1 C3 98.205
C2 P1 C4 98.205 C3 P1 C4 98.205
H5 C2 H6 108.776 H5 C2 H7 108.776
H6 C2 H7 107.811 H8 C3 H9 108.776
H8 C3 H10 108.776 H9 C3 H10 107.811
H11 C4 H12 108.776 H11 C4 H13 108.776
H12 C4 H13 107.811
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.625      
2 C -0.852      
3 C -0.852      
4 C -0.852      
5 H 0.207      
6 H 0.218      
7 H 0.218      
8 H 0.207      
9 H 0.218      
10 H 0.218      
11 H 0.207      
12 H 0.218      
13 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.313 1.313
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.006 0.000 0.000
y 0.000 -33.006 0.000
z 0.000 0.000 -37.459
Traceless
 xyz
x 2.227 0.000 0.000
y 0.000 2.227 0.000
z 0.000 0.000 -4.453
Polar
3z2-r2-8.907
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.974 0.000 0.000
y 0.000 7.975 0.000
z 0.000 0.000 6.530


<r2> (average value of r2) Å2
<r2> 121.152
(<r2>)1/2 11.007