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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-132.739348
Energy at 298.15K-132.741437
HF Energy-132.739348
Nuclear repulsion energy59.571711
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/TZVP
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' 3542 3419 16.34      
2 A' 3490 3369 101.34      
3 A' 2248 2170 125.02      
4 A' 1647 1590 35.25      
5 A' 1089 1052 18.49      
6 A' 555 536 177.10      
7 A' 486 469 173.24      
8 A' 414 400 16.51      
9 A" 3628 3502 37.31      
10 A" 1193 1152 0.20      
11 A" 698 674 44.27      
12 A" 362 349 10.43      

Unscaled Zero Point Vibrational Energy (zpe) 9675.6 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 9340.8 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/TZVP
ABC
10.46334 0.31322 0.30617

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 1.364 0.000
C2 0.000 0.161 0.000
N3 0.083 -1.183 0.000
H4 -0.037 2.424 0.000
H5 -0.231 -1.646 0.841
H6 -0.231 -1.646 -0.841

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20292.54941.06063.13263.1326
C21.20291.34732.26352.00642.0064
N32.54941.34733.60991.00981.0098
H41.06062.26353.60994.16074.1607
H53.13262.00641.00984.16071.6815
H63.13262.00641.00984.16071.6815

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.119 C2 C1 H4 179.422
C2 N3 H5 115.953 C2 N3 H6 115.953
H5 N3 H6 112.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.408      
2 C 0.109      
3 N -0.352      
4 H 0.164      
5 H 0.244      
6 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.040 -1.570 0.000 1.883
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.758 1.842 0.000
y 1.842 -12.337 0.000
z 0.000 0.000 -17.175
Traceless
 xyz
x -6.001 1.842 0.000
y 1.842 6.629 0.000
z 0.000 0.000 -0.627
Polar
3z2-r2-1.255
x2-y2-8.420
xy1.842
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.621 -0.017 0.000
y -0.017 7.002 0.000
z 0.000 0.000 2.757


<r2> (average value of r2) Å2
<r2> 44.457
(<r2>)1/2 6.668