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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP3/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 MP3/cc-pVTZ
 hartrees
Energy at 0K-132.430702
Energy at 298.15K-132.432948
HF Energy-131.902347
Nuclear repulsion energy59.487805
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 MP3/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' 3608 3409 21.60      
2 A' 3533 3338 87.32      
3 A' 2290 2163 95.03      
4 A' 1671 1578 27.22      
5 A' 1081 1021 12.86      
6 A' 714 674 199.41      
7 A' 535 506 94.02      
8 A' 435 411 9.64      
9 A" 3696 3491 34.95      
10 A" 1238 1170 0.53      
11 A" 694 656 40.06      
12 A" 371 351 6.16      

Unscaled Zero Point Vibrational Energy (zpe) 9932.9 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 9383.6 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 MP3/cc-pVTZ
ABC
10.12897 0.31170 0.30555

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.036 1.364 0.000
C2 0.000 0.164 0.000
N3 0.118 -1.193 0.000
H4 -0.077 2.421 0.000
H5 -0.269 -1.616 0.826
H6 -0.269 -1.616 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20062.56141.05823.10123.1012
C21.20061.36192.25871.98081.9808
N32.56141.36193.61951.00601.0060
H41.05822.25873.61954.12564.1256
H53.10121.98081.00604.12561.6524
H63.10121.98081.00604.12561.6524

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.709 C2 C1 H4 179.469
C2 N3 H5 112.678 C2 N3 H6 112.678
H5 N3 H6 110.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability