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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B1B95/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 B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-132.642628
Energy at 298.15K-132.644693
HF Energy-132.642628
Nuclear repulsion energy59.409501
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 B1B95/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' 3572 3422 15.27      
2 A' 3519 3371 98.04      
3 A' 2273 2177 134.56      
4 A' 1619 1551 26.39      
5 A' 1101 1055 17.67      
6 A' 592 568 162.54      
7 A' 483 463 121.84      
8 A' 395 378 15.16      
9 A" 3668 3514 41.17      
10 A" 1185 1135 0.40      
11 A" 658 630 42.80      
12 A" 350 335 7.49      

Unscaled Zero Point Vibrational Energy (zpe) 9707.5 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 9298.8 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 B1B95/aug-cc-pVDZ
ABC
10.28017 0.31151 0.30487

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 1.368 0.000
C2 0.000 0.157 0.000
N3 0.085 -1.189 0.000
H4 -0.026 2.434 0.000
H5 -0.268 -1.633 0.836
H6 -0.268 -1.633 -0.836

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21082.55841.06633.12693.1269
C21.21081.34862.27711.99441.9944
N32.55841.34863.62461.01081.0108
H41.06632.27713.62464.15984.1598
H53.12691.99441.01084.15981.6720
H63.12691.99441.01084.15981.6720

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.648 C2 C1 H4 179.189
C2 N3 H5 114.650 C2 N3 H6 114.650
H5 N3 H6 111.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.871      
2 C -0.292      
3 N -0.070      
4 H -0.478      
5 H -0.016      
6 H -0.016      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.030 -1.456 0.000 1.784
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.618 1.934 0.000
y 1.934 -12.483 0.000
z 0.000 0.000 -17.245
Traceless
 xyz
x -5.754 1.934 0.000
y 1.934 6.449 0.000
z 0.000 0.000 -0.695
Polar
3z2-r2-1.390
x2-y2-8.135
xy1.934
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.785 0.004 0.000
y 0.004 7.456 0.000
z 0.000 0.000 3.753


<r2> (average value of r2) Å2
<r2> 44.606
(<r2>)1/2 6.679