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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: LSDA/aug-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 LSDA/aug-cc-pVDZ
 hartrees
Energy at 0K-131.953162
Energy at 298.15K-131.954987
HF Energy-131.953162
Nuclear repulsion energy59.254072
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 LSDA/aug-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' 3464 3425 14.61      
2 A' 3428 3389 120.61      
3 A' 2225 2200 145.06      
4 A' 1539 1522 30.23      
5 A' 1115 1102 16.74      
6 A' 477 472 10.54      
7 A' 431 426 259.01      
8 A' 332 328 35.61      
9 A" 3559 3519 55.00      
10 A" 1109 1096 0.00      
11 A" 620 613 42.81      
12 A" 332 329 9.28      

Unscaled Zero Point Vibrational Energy (zpe) 9315.0 cm-1
Scaled (by 0.9887) Zero Point Vibrational Energy (zpe) 9209.7 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 LSDA/aug-cc-pVDZ
ABC
10.35423 0.31088 0.30357

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.373 0.000
C2 0.000 0.152 0.000
N3 0.047 -1.183 0.000
H4 0.024 2.450 0.000
H5 -0.256 -1.656 0.853
H6 -0.256 -1.656 -0.853

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22102.55621.07733.15933.1593
C21.22101.33622.29812.01552.0155
N32.55621.33623.63341.02151.0215
H41.07732.29813.63344.20314.2031
H53.15932.01551.02154.20311.7061
H63.15932.01551.02154.20311.7061

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.734 C2 C1 H4 178.618
C2 N3 H5 116.869 C2 N3 H6 116.869
H5 N3 H6 113.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.636      
2 C -0.283      
3 N 0.082      
4 H -0.447      
5 H 0.006      
6 H 0.006      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.907 -1.728 0.000 1.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.941 1.786 0.000
y 1.786 -12.410 0.000
z 0.000 0.000 -17.325
Traceless
 xyz
x -6.074 1.786 0.000
y 1.786 6.723 0.000
z 0.000 0.000 -0.649
Polar
3z2-r2-1.299
x2-y2-8.531
xy1.786
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.962 0.098 0.000
y 0.098 7.984 0.000
z 0.000 0.000 3.894


<r2> (average value of r2) Å2
<r2> 44.892
(<r2>)1/2 6.700