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

using model chemistry: B1B95/STO-3G

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/STO-3G
 hartrees
Energy at 0K-189.302264
Energy at 298.15K-189.305458
Nuclear repulsion energy100.177586
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/STO-3G
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' 3736 3299 31.72      
2 A' 3701 3268 134.04      
3 A' 3234 2856 7.66      
4 A' 2430 2146 20.00      
5 A' 1651 1458 0.04      
6 A' 1599 1412 18.09      
7 A' 1363 1203 37.43      
8 A' 1146 1012 11.51      
9 A' 957 845 11.98      
10 A' 779 688 15.97      
11 A' 555 490 0.84      
12 A' 215 190 4.08      
13 A" 3322 2933 6.45      
14 A" 1286 1135 1.06      
15 A" 1062 938 0.93      
16 A" 759 670 19.61      
17 A" 372 328 10.14      
18 A" 296 262 66.31      

Unscaled Zero Point Vibrational Energy (zpe) 14231.2 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 12566.1 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 B1B95/STO-3G
ABC
1.08999 0.15159 0.13657

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.680 -0.509 0.000
C2 0.000 0.818 0.000
C3 0.542 1.891 0.000
O4 0.342 -1.564 0.000
H5 -1.343 -0.570 0.896
H6 -1.343 -0.570 -0.896
H7 1.028 2.854 0.000
H8 -0.251 -2.399 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.49102.69291.46831.11651.11653.77181.9376
C21.49101.20192.40602.12912.12912.28073.2265
C32.69291.20193.46013.22673.22671.07884.3623
O41.46832.40603.46012.15172.15174.47031.0246
H51.11652.12913.22672.15171.79204.26012.3106
H61.11652.12913.22672.15171.79204.26012.3106
H73.77182.28071.07884.47034.26014.26015.4062
H81.93763.22654.36231.02462.31062.31065.4062

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 179.672 C1 O4 H8 100.502
C2 C1 O4 108.779 C2 C1 H5 108.628
C2 C1 H6 108.628 C2 C3 H7 179.991
O4 C1 H5 111.981 O4 C1 H6 111.981
H5 C1 H6 106.740
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.065      
2 C -0.041      
3 C -0.133      
4 O -0.233      
5 H 0.089      
6 H 0.089      
7 H 0.118      
8 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.533 -0.577 0.000 1.638
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.192 3.895 0.000
y 3.895 -16.577 0.000
z 0.000 0.000 -22.178
Traceless
 xyz
x -1.814 3.895 0.000
y 3.895 5.107 0.000
z 0.000 0.000 -3.293
Polar
3z2-r2-6.586
x2-y2-4.614
xy3.895
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.054 1.193 0.000
y 1.193 4.600 0.000
z 0.000 0.000 1.165


<r2> (average value of r2) Å2
<r2> 85.410
(<r2>)1/2 9.242