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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-132.742108
Energy at 298.15K-132.744260
HF Energy-132.742108
Nuclear repulsion energy59.602088
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/cc-pVTZ
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' 3530 3412 11.32      
2 A' 3484 3368 93.52      
3 A' 2245 2170 113.96      
4 A' 1641 1586 26.81      
5 A' 1083 1047 15.51      
6 A' 615 594 190.97      
7 A' 492 476 114.11      
8 A' 427 413 11.12      
9 A" 3612 3492 32.72      
10 A" 1202 1162 0.02      
11 A" 699 676 38.76      
12 A" 368 355 8.80      

Unscaled Zero Point Vibrational Energy (zpe) 9699.0 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 9375.0 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/cc-pVTZ
ABC
10.33829 0.31352 0.30677

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 1.362 0.000
C2 0.000 0.161 0.000
N3 0.093 -1.185 0.000
H4 -0.042 2.421 0.000
H5 -0.252 -1.635 0.835
H6 -0.252 -1.635 -0.835

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20092.54961.05943.12023.1202
C21.20091.34962.26031.99701.9970
N32.54961.34963.60881.00961.0096
H41.05942.26033.60884.14674.1467
H53.12021.99701.00964.14671.6706
H63.12021.99701.00964.14671.6706

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.893 C2 C1 H4 179.555
C2 N3 H5 114.903 C2 N3 H6 114.903
H5 N3 H6 111.659
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.417      
2 C 0.165      
3 N -0.204      
4 H 0.129      
5 H 0.163      
6 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.008 -1.540 0.000 1.840
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.376 1.809 0.000
y 1.809 -12.376 0.000
z 0.000 0.000 -17.148
Traceless
 xyz
x -5.614 1.809 0.000
y 1.809 6.386 0.000
z 0.000 0.000 -0.772
Polar
3z2-r2-1.544
x2-y2-8.000
xy1.809
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.854 0.013 0.000
y 0.013 6.921 0.000
z 0.000 0.000 3.060


<r2> (average value of r2) Å2
<r2> 44.303
(<r2>)1/2 6.656