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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-132.633279
Energy at 298.15K-132.635477
HF Energy-132.633279
Nuclear repulsion energy59.673722
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 B1B95/6-31G(2df,p)
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' 3583 3431 13.13      
2 A' 3541 3391 88.14      
3 A' 2290 2194 89.09      
4 A' 1638 1569 25.09      
5 A' 1103 1056 13.35      
6 A' 645 618 191.59      
7 A' 505 484 100.17      
8 A' 435 417 13.59      
9 A" 3673 3517 32.63      
10 A" 1197 1146 0.00      
11 A" 707 677 33.38      
12 A" 384 367 6.27      

Unscaled Zero Point Vibrational Energy (zpe) 9849.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9433.3 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 B1B95/6-31G(2df,p)
ABC
10.27027 0.31435 0.30779

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.042 1.360 0.000
C2 0.000 0.159 0.000
N3 0.117 -1.182 0.000
H4 -0.090 2.418 0.000
H5 -0.240 -1.629 0.831
H6 -0.240 -1.629 -0.831

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20112.54731.05963.10813.1081
C21.20111.34712.26061.98631.9863
N32.54731.34713.60671.00851.0085
H41.05962.26063.60674.13414.1341
H53.10811.98631.00854.13411.6621
H63.10811.98631.00854.13411.6621

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.012 C2 C1 H4 179.450
C2 N3 H5 114.191 C2 N3 H6 114.191
H5 N3 H6 110.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.206      
2 C 0.112      
3 N -0.652      
4 H 0.188      
5 H 0.279      
6 H 0.279      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.070 -1.428 0.000 1.784
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.613 1.753 0.000
y 1.753 -11.767 0.000
z 0.000 0.000 -16.499
Traceless
 xyz
x -5.480 1.753 0.000
y 1.753 6.289 0.000
z 0.000 0.000 -0.809
Polar
3z2-r2-1.618
x2-y2-7.846
xy1.753
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.198 -0.047 0.000
y -0.047 6.351 0.000
z 0.000 0.000 2.556


<r2> (average value of r2) Å2
<r2> 43.767
(<r2>)1/2 6.616