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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-132.639775
Energy at 298.15K-132.641946
HF Energy-132.639775
Nuclear repulsion energy59.188802
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 B3PW91/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' 3520 3397 6.80      
2 A' 3507 3384 95.61      
3 A' 2264 2184 96.15      
4 A' 1614 1557 22.09      
5 A' 1096 1057 13.29      
6 A' 679 655 195.68      
7 A' 502 485 92.89      
8 A' 414 400 9.54      
9 A" 3607 3481 30.87      
10 A" 1204 1162 0.12      
11 A" 698 673 31.71      
12 A" 361 348 7.19      

Unscaled Zero Point Vibrational Energy (zpe) 9732.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9391.5 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 B3PW91/cc-pVDZ
ABC
9.94777 0.30953 0.30336

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.042 1.371 0.000
C2 0.000 0.157 0.000
N3 0.125 -1.192 0.000
H4 -0.088 2.440 0.000
H5 -0.265 -1.629 0.834
H6 -0.265 -1.629 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21472.56851.07063.12123.1212
C21.21471.35492.28521.98841.9884
N32.56851.35493.63891.01841.0184
H41.07062.28523.63894.15744.1574
H53.12121.98841.01844.15741.6673
H63.12121.98841.01844.15741.6673

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.723 C2 C1 H4 179.531
C2 N3 H5 113.062 C2 N3 H6 113.062
H5 N3 H6 109.897
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.076      
2 C 0.031      
3 N -0.215      
4 H 0.010      
5 H 0.125      
6 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.146 -1.544 0.000 1.923
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.840 1.870 0.000
y 1.870 -11.910 0.000
z 0.000 0.000 -16.865
Traceless
 xyz
x -5.452 1.870 0.000
y 1.870 6.442 0.000
z 0.000 0.000 -0.990
Polar
3z2-r2-1.980
x2-y2-7.930
xy1.870
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.019 -0.037 0.000
y -0.037 6.590 0.000
z 0.000 0.000 2.377


<r2> (average value of r2) Å2
<r2> 44.413
(<r2>)1/2 6.664