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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3LYPultrafine/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.741247
Energy at 298.15K-132.743385
HF Energy-132.741247
Nuclear repulsion energy59.607460
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/6-311+G(3df,2p)
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' 3540 3540 14.65      
2 A' 3474 3474 97.88      
3 A' 2238 2238 136.69      
4 A' 1639 1639 27.96      
5 A' 1085 1085 18.03      
6 A' 583 583 169.29      
7 A' 493 493 132.66      
8 A' 432 432 8.86      
9 A" 3622 3622 41.09      
10 A" 1191 1191 0.14      
11 A" 704 704 40.80      
12 A" 369 369 9.89      

Unscaled Zero Point Vibrational Energy (zpe) 9684.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9684.4 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/6-311+G(3df,2p)
ABC
10.40874 0.31360 0.30671

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 1.362 0.000
C2 0.000 0.162 0.000
N3 0.087 -1.184 0.000
H4 -0.035 2.422 0.000
H5 -0.245 -1.640 0.837
H6 -0.245 -1.640 -0.837

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20102.54821.06023.12583.1258
C21.20101.34822.26112.00192.0019
N32.54821.34823.60831.00971.0097
H41.06022.26113.60834.15344.1534
H53.12582.00191.00974.15341.6748
H63.12582.00191.00974.15341.6748

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.975 C2 C1 H4 179.558
C2 N3 H5 115.469 C2 N3 H6 115.469
H5 N3 H6 112.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.014      
2 C 0.138      
3 N -0.828      
4 H 0.231      
5 H 0.223      
6 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.968 -1.503 0.000 1.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.815 1.819 0.000
y 1.819 -12.634 0.000
z 0.000 0.000 -17.343
Traceless
 xyz
x -5.827 1.819 0.000
y 1.819 6.445 0.000
z 0.000 0.000 -0.618
Polar
3z2-r2-1.236
x2-y2-8.181
xy1.819
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.791 -0.033 0.000
y -0.033 7.387 0.000
z 0.000 0.000 3.739


<r2> (average value of r2) Å2
<r2> 44.505
(<r2>)1/2 6.671