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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: LSDA/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/cc-pVDZ
 hartrees
Energy at 0K-131.939008
Energy at 298.15K-131.941002
HF Energy-131.939008
Nuclear repulsion energy59.167982
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 LSDA/cc-pVDZ
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' 3443 3405 35.83      
2 A' 3432 3395 85.23      
3 A' 2235 2211 99.05      
4 A' 1531 1514 25.67      
5 A' 1115 1103 13.57      
6 A' 578 572 179.13      
7 A' 466 461 101.96      
8 A' 364 360 23.29      
9 A" 3526 3487 41.52      
10 A" 1133 1121 0.03      
11 A" 656 648 30.61      
12 A" 346 343 8.98      

Unscaled Zero Point Vibrational Energy (zpe) 9413.1 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 9309.5 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 LSDA/cc-pVDZ
ABC
9.99708 0.31028 0.30357

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.023 1.372 0.000
C2 0.000 0.151 0.000
N3 0.101 -1.186 0.000
H4 -0.056 2.451 0.000
H5 -0.256 -1.644 0.846
H6 -0.256 -1.644 -0.846

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22182.56141.07893.14133.1413
C21.22181.34062.30072.00052.0005
N32.56141.34063.64021.02631.0263
H41.07892.30073.64024.18584.1858
H53.14132.00051.02634.18581.6928
H63.14132.00051.02634.18581.6928

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.760 C2 C1 H4 179.309
C2 N3 H5 114.741 C2 N3 H6 114.741
H5 N3 H6 111.123
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.132      
2 C 0.010      
3 N -0.191      
4 H 0.021      
5 H 0.147      
6 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.066 -1.800 0.000 2.092
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.956 1.788 0.000
y 1.788 -11.736 0.000
z 0.000 0.000 -16.847
Traceless
 xyz
x -5.665 1.788 0.000
y 1.788 6.666 0.000
z 0.000 0.000 -1.001
Polar
3z2-r2-2.002
x2-y2-8.220
xy1.788
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.009 0.021 0.000
y 0.021 6.837 0.000
z 0.000 0.000 2.408


<r2> (average value of r2) Å2
<r2> 44.441
(<r2>)1/2 6.666