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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-130.948128
Energy at 298.15K-130.950282
HF Energy-130.948128
Nuclear repulsion energy 
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 wB97X-D/STO-3G
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' 3733 3733 170.39      
2 A' 3601 3601 3.24      
3 A' 2483 2483 6.72      
4 A' 1811 1811 9.70      
5 A' 1095 1095 8.14      
6 A' 735 735 164.59      
7 A' 651 651 41.06      
8 A' 426 426 14.05      
9 A" 3780 3780 0.59      
10 A" 1338 1338 0.40      
11 A" 791 791 14.75      
12 A" 378 378 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 10410.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10410.9 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 wB97X-D/STO-3G
ABC
8.95993 0.30026 0.29510

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.013 1.380 0.000
C2 0.000 0.180 0.000
N3 0.121 -1.227 0.000
H4 -0.029 2.456 0.000
H5 -0.372 -1.617 0.843
H6 -0.372 -1.617 -0.843

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20012.61071.07603.13433.1343
C21.20011.41242.27612.01972.0197
N32.61071.41243.68621.05181.0518
H41.07602.27613.68624.17374.1737
H53.13432.01971.05184.17371.6858
H63.13432.01971.05184.17371.6858

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.676 C2 C1 H4 179.743
C2 N3 H5 109.219 C2 N3 H6 109.219
H5 N3 H6 106.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.160      
2 C 0.017      
3 N -0.369      
4 H 0.113      
5 H 0.199      
6 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.579 -0.731 0.000 1.740
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.562 2.506 0.000
y 2.506 -12.510 0.000
z 0.000 0.000 -15.521
Traceless
 xyz
x -3.546 2.506 0.000
y 2.506 4.032 0.000
z 0.000 0.000 -0.485
Polar
3z2-r2-0.970
x2-y2-5.052
xy2.506
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.503 0.162 0.000
y 0.162 4.170 0.000
z 0.000 0.000 1.094


<r2> (average value of r2) Å2
<r2> 44.722
(<r2>)1/2 6.687