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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD(T)/6-31+G**

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)/6-31+G**
 hartrees
Energy at 0K-132.329628
Energy at 298.15K-132.331584
HF Energy-131.859572
Nuclear repulsion energy58.829218
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)/6-31+G**
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' 3587 3442        
2 A' 3509 3368        
3 A' 2204 2115        
4 A' 1683 1615        
5 A' 1060 1017        
6 A' 723 694        
7 A' 480 460        
8 A' 353 338        
9 A" 3691 3542        
10 A" 1225 1176        
11 A" 595 571        
12 A" 283 271        

Unscaled Zero Point Vibrational Energy (zpe) 9695.8 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9304.1 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)/6-31+G**
ABC
9.97972 0.30461 0.29860

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.180 1.372 0.000
C2 0.000 0.163 0.000
N3 -0.048 -1.209 0.000
H4 0.207 2.436 0.000
H5 -0.476 -1.591 0.834
H6 -0.476 -1.591 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22142.59071.06443.14703.1470
C21.22141.37342.28152.00032.0003
N32.59071.37343.65361.01231.0123
H41.06442.28153.65364.16864.1686
H53.14702.00031.01234.16861.6678
H63.14702.00031.01234.16861.6678

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.521 C2 C1 H4 172.966
C2 N3 H5 113.079 C2 N3 H6 113.079
H5 N3 H6 110.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability