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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-132.717717
Energy at 298.15K-132.719813
HF Energy-132.717717
Nuclear repulsion energy59.493752
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 B3LYP/6-311G*
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' 3534 3415 7.06      
2 A' 3478 3361 73.70      
3 A' 2249 2173 100.27      
4 A' 1692 1635 34.57      
5 A' 1084 1047 13.17      
6 A' 634 613 241.28      
7 A' 487 470 94.05      
8 A' 378 365 32.42      
9 A" 3614 3492 18.44      
10 A" 1226 1184 0.15      
11 A" 682 659 37.78      
12 A" 370 358 8.76      

Unscaled Zero Point Vibrational Energy (zpe) 9713.1 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 9385.8 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 B3LYP/6-311G*
ABC
10.30702 0.31239 0.30570

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 1.365 0.000
C2 0.000 0.162 0.000
N3 0.085 -1.187 0.000
H4 -0.028 2.427 0.000
H5 -0.266 -1.636 0.836
H6 -0.266 -1.636 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20332.55381.06243.12633.1263
C21.20331.35162.26562.00052.0005
N32.55381.35163.61611.01151.0115
H41.06242.26563.61614.15534.1553
H53.12632.00051.01154.15531.6716
H63.12632.00051.01154.15531.6716

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.682 C2 C1 H4 179.122
C2 N3 H5 114.915 C2 N3 H6 114.915
H5 N3 H6 111.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.178      
2 C 0.138      
3 N -0.868      
4 H 0.228      
5 H 0.340      
6 H 0.340      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.192 -1.510 0.000 1.924
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.353 2.065 0.000
y 2.065 -12.036 0.000
z 0.000 0.000 -16.984
Traceless
 xyz
x -5.842 2.065 0.000
y 2.065 6.633 0.000
z 0.000 0.000 -0.790
Polar
3z2-r2-1.580
x2-y2-8.317
xy2.065
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.138 0.053 0.000
y 0.053 6.535 0.000
z 0.000 0.000 2.468


<r2> (average value of r2) Å2
<r2> 44.317
(<r2>)1/2 6.657