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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP4=FULL/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 MP4=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-132.525400
Energy at 298.15K-132.527510
HF Energy-131.903303
Nuclear repulsion energy59.314419
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 MP4=FULL/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' 3548 3439        
2 A' 3490 3383        
3 A' 2181 2114        
4 A' 1650 1599        
5 A' 1061 1028        
6 A' 686 665        
7 A' 492 477        
8 A' 392 380        
9 A" 3631 3519        
10 A" 1209 1171        
11 A" 652 632        
12 A" 347 336        

Unscaled Zero Point Vibrational Energy (zpe) 9669.6 cm-1
Scaled (by 0.9693) Zero Point Vibrational Energy (zpe) 9372.7 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 MP4=FULL/aug-cc-pVTZ
ABC
10.10088 0.30995 0.30377

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.069 1.369 0.000
C2 0.000 0.160 0.000
N3 0.143 -1.191 0.000
H4 -0.125 2.424 0.000
H5 -0.231 -1.629 0.830
H6 -0.231 -1.629 -0.830

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21132.56941.05593.11453.1145
C21.21131.35892.26721.98491.9849
N32.56941.35893.62501.00941.0094
H41.05592.26723.62504.13754.1375
H53.11451.98491.00944.13751.6593
H63.11451.98491.00944.13751.6593

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.233 C2 C1 H4 179.737
C2 N3 H5 113.051 C2 N3 H6 113.051
H5 N3 H6 110.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability