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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-132.650312
Energy at 298.15K-132.652459
HF Energy-132.650312
Nuclear repulsion energy59.676474
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 B1B95/6-311G*
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' 3582 3434 11.51      
2 A' 3503 3358 74.28      
3 A' 2274 2180 106.48      
4 A' 1696 1626 37.25      
5 A' 1102 1056 14.65      
6 A' 638 611 237.52      
7 A' 494 473 107.24      
8 A' 405 388 25.69      
9 A" 3669 3517 23.69      
10 A" 1227 1176 0.16      
11 A" 692 663 37.76      
12 A" 380 365 8.95      

Unscaled Zero Point Vibrational Energy (zpe) 9830.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 9423.2 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 B1B95/6-311G*
ABC
10.34390 0.31437 0.30766

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.022 1.361 0.000
C2 0.000 0.159 0.000
N3 0.098 -1.183 0.000
H4 -0.055 2.421 0.000
H5 -0.250 -1.630 0.833
H6 -0.250 -1.630 -0.833

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20122.54631.06123.11323.1132
C21.20121.34602.26241.99011.9901
N32.54631.34603.60741.00791.0079
H41.06122.26243.60744.14104.1410
H53.11321.99011.00794.14101.6666
H63.11321.99011.00794.14101.6666

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.862 C2 C1 H4 179.249
C2 N3 H5 114.686 C2 N3 H6 114.686
H5 N3 H6 111.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.167      
2 C 0.141      
3 N -0.909      
4 H 0.238      
5 H 0.348      
6 H 0.348      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.189 -1.516 0.000 1.927
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.267 1.994 0.000
y 1.994 -11.806 0.000
z 0.000 0.000 -16.843
Traceless
 xyz
x -5.942 1.994 0.000
y 1.994 6.749 0.000
z 0.000 0.000 -0.807
Polar
3z2-r2-1.613
x2-y2-8.461
xy1.994
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.127 -0.004 0.000
y -0.004 6.470 0.000
z 0.000 0.000 2.441


<r2> (average value of r2) Å2
<r2> 44.003
(<r2>)1/2 6.634