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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYPultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-132.698332
Energy at 298.15K-132.700368
HF Energy-132.698332
Nuclear repulsion energy59.253980
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 B3LYPultrafine/6-31+G**
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' 3552 3419 17.97      
2 A' 3494 3364 99.82      
3 A' 2242 2158 140.57      
4 A' 1642 1581 34.40      
5 A' 1091 1050 20.48      
6 A' 570 548 180.49      
7 A' 477 460 164.52      
8 A' 376 362 40.26      
9 A" 3648 3512 45.17      
10 A" 1187 1143 0.15      
11 A" 675 650 54.45      
12 A" 365 352 8.34      

Unscaled Zero Point Vibrational Energy (zpe) 9659.6 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 9299.3 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 B3LYPultrafine/6-31+G**
ABC
10.36494 0.30964 0.30278

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.372 0.000
C2 0.000 0.161 0.000
N3 0.111 -1.189 0.000
H4 -0.087 2.436 0.000
H5 -0.202 -1.655 0.842
H6 -0.202 -1.655 -0.842

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21232.56541.06463.14553.1455
C21.21231.35372.27682.01152.0115
N32.56541.35373.62971.01251.0125
H41.06462.27683.62974.17804.1780
H53.14552.01151.01254.17801.6848
H63.14552.01151.01254.17801.6848

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.554 C2 C1 H4 179.827
C2 N3 H5 115.692 C2 N3 H6 115.692
H5 N3 H6 112.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.164      
2 C -0.254      
3 N -0.724      
4 H 0.191      
5 H 0.312      
6 H 0.312      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.034 -1.567 0.000 1.877
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.160 1.781 0.000
y 1.781 -12.375 0.000
z 0.000 0.000 -17.326
Traceless
 xyz
x -6.310 1.781 0.000
y 1.781 6.868 0.000
z 0.000 0.000 -0.558
Polar
3z2-r2-1.116
x2-y2-8.786
xy1.781
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.015 -0.171 0.000
y -0.171 7.304 0.000
z 0.000 0.000 2.915


<r2> (average value of r2) Å2
<r2> 44.943
(<r2>)1/2 6.704