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All results from a given calculation for C3H4O (2-Propyn-1-ol)

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-35.125541
Energy at 298.15K-35.128744
Nuclear repulsion energy53.940636
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/CEP-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' 3742 3583 12.87      
2 A' 3494 3345 49.07      
3 A' 3034 2905 66.81      
4 A' 2219 2124 2.55      
5 A' 1508 1444 3.16      
6 A' 1435 1374 19.29      
7 A' 1217 1165 53.70      
8 A' 1029 985 120.25      
9 A' 920 881 9.86      
10 A' 742 710 70.29      
11 A' 532 510 4.74      
12 A' 207 199 9.71      
13 A" 3082 2951 49.04      
14 A" 1227 1174 0.00      
15 A" 1015 972 2.15      
16 A" 696 667 89.75      
17 A" 313 299 3.31      
18 A" 231 222 208.30      

Unscaled Zero Point Vibrational Energy (zpe) 13320.4 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 12754.3 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 B1B95/CEP-31G
ABC
1.10954 0.14836 0.13424

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.686 -0.513 0.000
C2 0.000 0.804 0.000
C3 0.551 1.926 0.000
O4 0.320 -1.572 0.000
H5 -1.331 -0.582 0.897
H6 -1.331 -0.582 -0.897
H7 1.031 2.883 0.000
H8 -0.118 -2.450 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.48502.73471.46051.10661.10663.80552.0188
C21.48501.24992.39742.12072.12072.32073.2562
C32.73471.24993.50543.26153.26151.07084.4267
O41.46052.39743.50542.12322.12324.51140.9809
H51.10662.12073.26152.12321.79324.28862.4010
H61.10662.12073.26152.12321.79324.28862.4010
H73.80552.32071.07084.51144.28864.28865.4554
H82.01883.25624.42670.98092.40102.40105.4554

picture of 2-Propyn-1-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 178.660 C1 O4 H8 110.005
C2 C1 O4 108.961 C2 C1 H5 108.953
C2 C1 H6 108.953 C2 C3 H7 179.553
O4 C1 H5 110.849 O4 C1 H6 110.849
H5 C1 H6 108.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.006      
2 C -0.259      
3 C -0.348      
4 O -0.451      
5 H 0.149      
6 H 0.149      
7 H 0.410      
8 H 0.344      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.423 -0.639 0.000 2.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.635 5.477 0.000
y 5.477 -16.239 0.000
z 0.000 0.000 -24.703
Traceless
 xyz
x -3.164 5.477 0.000
y 5.477 7.930 0.000
z 0.000 0.000 -4.766
Polar
3z2-r2-9.532
x2-y2-7.396
xy5.477
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.890 1.629 0.000
y 1.629 7.336 0.000
z 0.000 0.000 2.659


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000