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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B3PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-132.686790
Energy at 298.15K-132.688938
HF Energy-132.686790
Nuclear repulsion energy59.650395
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 B3PW91/aug-cc-pVTZ
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' 3553 3429 14.82      
2 A' 3485 3363 96.81      
3 A' 2248 2169 135.40      
4 A' 1634 1577 27.25      
5 A' 1095 1057 17.90      
6 A' 592 572 163.95      
7 A' 495 478 129.17      
8 A' 430 415 8.81      
9 A" 3639 3512 41.87      
10 A" 1192 1151 0.24      
11 A" 700 675 39.73      
12 A" 369 356 9.68      

Unscaled Zero Point Vibrational Energy (zpe) 9715.8 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 9376.8 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 B3PW91/aug-cc-pVTZ
ABC
10.37799 0.31416 0.30731

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 1.361 0.000
C2 0.000 0.160 0.000
N3 0.094 -1.182 0.000
H4 -0.047 2.422 0.000
H5 -0.242 -1.636 0.837
H6 -0.242 -1.636 -0.837

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20192.54651.06143.11963.1196
C21.20191.34542.26331.99541.9954
N32.54651.34543.60771.00901.0090
H41.06142.26333.60774.14814.1481
H53.11961.99541.00904.14811.6730
H63.11961.99541.00904.14811.6730

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.990 C2 C1 H4 179.535
C2 N3 H5 115.147 C2 N3 H6 115.147
H5 N3 H6 112.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.408      
2 C 1.076      
3 N -0.374      
4 H 0.430      
5 H 0.138      
6 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.969 -1.512 0.000 1.795
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.553 1.792 0.000
y 1.792 -12.385 0.000
z 0.000 0.000 -17.158
Traceless
 xyz
x -5.782 1.792 0.000
y 1.792 6.471 0.000
z 0.000 0.000 -0.689
Polar
3z2-r2-1.378
x2-y2-8.169
xy1.792
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.889 -0.044 0.000
y -0.044 7.427 0.000
z 0.000 0.000 3.863


<r2> (average value of r2) Å2
<r2> 44.294
(<r2>)1/2 6.655