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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-132.684379
Energy at 298.15K-132.686539
HF Energy-132.684379
Nuclear repulsion energy59.644511
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-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' 3551 3415 14.70      
2 A' 3487 3353 93.49      
3 A' 2252 2166 118.49      
4 A' 1634 1571 27.93      
5 A' 1094 1052 15.89      
6 A' 614 590 185.88      
7 A' 495 476 119.04      
8 A' 430 413 11.28      
9 A" 3637 3497 36.12      
10 A" 1197 1151 0.02      
11 A" 698 672 39.79      
12 A" 371 357 8.90      

Unscaled Zero Point Vibrational Energy (zpe) 9729.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 9355.8 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 B3PW91/cc-pVTZ
ABC
10.32177 0.31411 0.30737

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.023 1.361 0.000
C2 0.000 0.159 0.000
N3 0.098 -1.183 0.000
H4 -0.052 2.422 0.000
H5 -0.248 -1.632 0.835
H6 -0.248 -1.632 -0.835

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20202.54731.06123.11563.1156
C21.20201.34622.26321.99201.9920
N32.54731.34623.60831.00921.0092
H41.06122.26323.60834.14384.1438
H53.11561.99201.00924.14381.6699
H63.11561.99201.00924.14381.6699

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.930 C2 C1 H4 179.597
C2 N3 H5 114.739 C2 N3 H6 114.739
H5 N3 H6 111.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.395      
2 C 0.155      
3 N -0.196      
4 H 0.121      
5 H 0.158      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.009 -1.562 0.000 1.859
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.258 1.793 0.000
y 1.793 -12.100 0.000
z 0.000 0.000 -17.002
Traceless
 xyz
x -5.707 1.793 0.000
y 1.793 6.530 0.000
z 0.000 0.000 -0.823
Polar
3z2-r2-1.646
x2-y2-8.158
xy1.793
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.862 -0.010 0.000
y -0.010 6.915 0.000
z 0.000 0.000 3.054


<r2> (average value of r2) Å2
<r2> 44.130
(<r2>)1/2 6.643