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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: QCISD(T)=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-132.520784
Energy at 298.15K-132.522952
HF Energy-131.906470
Nuclear repulsion energy59.275139
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 QCISD(T)=FULL/Def2TZVPP
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' 3549 3549        
2 A' 3486 3486        
3 A' 2203 2203        
4 A' 1651 1651        
5 A' 1057 1057        
6 A' 703 703        
7 A' 526 526        
8 A' 408 408        
9 A" 3638 3638        
10 A" 1220 1220        
11 A" 690 690        
12 A" 347 347        

Unscaled Zero Point Vibrational Energy (zpe) 9739.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9739.3 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 QCISD(T)=FULL/Def2TZVPP
ABC
10.08535 0.30940 0.30333

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.036 1.370 0.000
C2 0.000 0.162 0.000
N3 0.119 -1.197 0.000
H4 -0.072 2.429 0.000
H5 -0.271 -1.622 0.828
H6 -0.271 -1.622 -0.828

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20922.57161.05953.11313.1131
C21.20921.36342.26881.98451.9845
N32.57161.36343.63081.00861.0086
H41.05952.26883.63084.13934.1393
H53.11311.98451.00864.13931.6552
H63.11311.98451.00864.13931.6552

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.719 C2 C1 H4 179.781
C2 N3 H5 112.715 C2 N3 H6 112.715
H5 N3 H6 110.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability