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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-132.094826
Energy at 298.15K-132.096251
HF Energy-131.813488
Nuclear repulsion energy58.192336
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 MP2/LANL2DZ
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' 3642 3507 54.72      
2 A' 3497 3368 61.76      
3 A' 2178 2098 115.28      
4 A' 1700 1637 54.12      
5 A' 1055 1016 21.29      
6 A' 501 482 118.46      
7 A' 384 370 10.30      
8 A' 63 60 468.02      
9 A" 3781 3642 49.79      
10 A" 1170 1127 9.36      
11 A" 677 652 63.88      
12 A" 351 338 9.91      

Unscaled Zero Point Vibrational Energy (zpe) 9498.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9148.2 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 MP2/LANL2DZ
ABC
11.03115 0.29675 0.28898

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 1.409 0.000
C2 0.000 0.165 0.000
N3 0.010 -1.210 0.000
H4 -0.007 2.478 0.000
H5 -0.008 -1.725 0.871
H6 -0.008 -1.725 -0.871

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.24332.61871.06923.25263.2526
C21.24331.37532.31252.08142.0814
N32.61871.37533.68781.01181.0118
H41.06922.31253.68784.29234.2923
H53.25262.08141.01184.29231.7410
H63.25262.08141.01184.29231.7410

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 179.935 C2 C1 H4 179.662
C2 N3 H5 120.612 C2 N3 H6 120.612
H5 N3 H6 118.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability