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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: mPW1PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-132.704734
Energy at 298.15K-132.706910
HF Energy-132.704734
Nuclear repulsion energy59.728067
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 mPW1PW91/Def2TZVPP
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' 3582 3582 19.04      
2 A' 3504 3504 95.60      
3 A' 2266 2266 127.17      
4 A' 1642 1642 28.98      
5 A' 1104 1104 17.44      
6 A' 603 603 179.63      
7 A' 503 503 134.97      
8 A' 443 443 10.20      
9 A" 3670 3670 41.24      
10 A" 1200 1200 0.02      
11 A" 710 710 42.06      
12 A" 376 376 9.79      

Unscaled Zero Point Vibrational Energy (zpe) 9801.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9801.3 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 mPW1PW91/Def2TZVPP
ABC
10.39445 0.31496 0.30812

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.029 1.359 0.000
C2 0.000 0.159 0.000
N3 0.101 -1.181 0.000
H4 -0.063 2.419 0.000
H5 -0.234 -1.633 0.835
H6 -0.234 -1.633 -0.835

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20062.54351.06053.11363.1136
C21.20061.34372.26121.99101.9910
N32.54351.34373.60401.00711.0071
H41.06052.26123.60404.14124.1412
H53.11361.99101.00714.14121.6698
H63.11361.99101.00714.14121.6698

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.084 C2 C1 H4 179.573
C2 N3 H5 115.008 C2 N3 H6 115.008
H5 N3 H6 111.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.303      
2 C 0.027      
3 N -0.296      
4 H 0.208      
5 H 0.183      
6 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.995 -1.557 0.000 1.848
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.440 1.763 0.000
y 1.763 -12.123 0.000
z 0.000 0.000 -17.068
Traceless
 xyz
x -5.844 1.763 0.000
y 1.763 6.631 0.000
z 0.000 0.000 -0.787
Polar
3z2-r2-1.574
x2-y2-8.317
xy1.763
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.048 -0.052 0.000
y -0.052 7.015 0.000
z 0.000 0.000 3.174


<r2> (average value of r2) Å2
<r2> 44.105
(<r2>)1/2 6.641