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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD(T)=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 CCSD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-132.522134
Energy at 298.15K-132.524268
HF Energy-131.903805
Nuclear repulsion energy59.386906
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 CCSD(T)=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' 3557 3428        
2 A' 3490 3364        
3 A' 2215 2135        
4 A' 1655 1595        
5 A' 1065 1026        
6 A' 685 660        
7 A' 497 479        
8 A' 404 389        
9 A" 3637 3505        
10 A" 1213 1169        
11 A" 665 641        
12 A" 349 337        

Unscaled Zero Point Vibrational Energy (zpe) 9716.1 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 9363.4 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 CCSD(T)=FULL/aug-cc-pVTZ
ABC
10.11165 0.31074 0.30452

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.070 1.366 0.000
C2 0.000 0.161 0.000
N3 0.144 -1.190 0.000
H4 -0.128 2.421 0.000
H5 -0.229 -1.627 0.830
H6 -0.229 -1.627 -0.830

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20722.56581.05593.11033.1103
C21.20721.35942.26311.98451.9845
N32.56581.35943.62141.00871.0087
H41.05592.26313.62144.13314.1331
H53.11031.98451.00874.13311.6591
H63.11031.98451.00874.13311.6591

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.261 C2 C1 H4 179.822
C2 N3 H5 113.036 C2 N3 H6 113.036
H5 N3 H6 110.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability