return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: BLYP/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 BLYP/aug-cc-pVDZ
 hartrees
Energy at 0K-132.656983
Energy at 298.15K-132.658767
HF Energy-132.656983
Nuclear repulsion energy58.767874
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 BLYP/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' 3422 3415 68.69      
2 A' 3406 3400 26.45      
3 A' 2169 2165 124.21      
4 A' 1574 1571 20.29      
5 A' 1048 1046 14.08      
6 A' 567 565 175.19      
7 A' 452 451 79.32      
8 A' 276 275 31.76      
9 A" 3492 3485 27.66      
10 A" 1151 1149 0.41      
11 A" 593 592 43.86      
12 A" 301 300 5.83      

Unscaled Zero Point Vibrational Energy (zpe) 9224.2 cm-1
Scaled (by 0.9981) Zero Point Vibrational Energy (zpe) 9206.7 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 BLYP/aug-cc-pVDZ
ABC
10.08335 0.30479 0.29831

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.075 1.382 0.000
C2 0.000 0.160 0.000
N3 0.023 -1.203 0.000
H4 0.102 2.455 0.000
H5 -0.355 -1.640 0.844
H6 -0.355 -1.640 -0.844

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22472.58591.07323.16683.1668
C21.22471.36322.29752.01912.0191
N32.58591.36323.65911.02261.0226
H41.07322.29753.65914.20574.2057
H53.16682.01911.02264.20571.6881
H63.16682.01911.02264.20571.6881

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.542 C2 C1 H4 177.936
C2 N3 H5 114.877 C2 N3 H6 114.877
H5 N3 H6 111.264
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.941      
2 C -0.346      
3 N 0.156      
4 H -0.631      
5 H -0.060      
6 H -0.060      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.086 -1.456 0.000 1.817
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.786 2.270 0.000
y 2.270 -13.267 0.000
z 0.000 0.000 -17.609
Traceless
 xyz
x -5.348 2.270 0.000
y 2.270 5.930 0.000
z 0.000 0.000 -0.582
Polar
3z2-r2-1.164
x2-y2-7.519
xy2.270
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.075 0.254 0.000
y 0.254 8.061 0.000
z 0.000 0.000 3.973


<r2> (average value of r2) Å2
<r2> 45.634
(<r2>)1/2 6.755