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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD(T)=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-132.434490
Energy at 298.15K-132.436564
HF Energy-131.896760
Nuclear repulsion energy59.154837
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/TZVP
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' 3551 3395        
2 A' 3495 3342        
3 A' 2213 2116        
4 A' 1654 1581        
5 A' 1056 1009        
6 A' 739 706        
7 A' 515 492        
8 A' 405 387        
9 A" 3645 3484        
10 A" 1215 1162        
11 A" 627 600        
12 A" 286 273        

Unscaled Zero Point Vibrational Energy (zpe) 9700.5 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 9273.7 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 CCSD(T)=FULL/TZVP
ABC
10.00055 0.30837 0.30227

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.126 1.367 0.000
C2 0.000 0.163 0.000
N3 -0.006 -1.204 0.000
H4 0.149 2.429 0.000
H5 -0.430 -1.593 0.832
H6 -0.430 -1.593 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21082.57461.06193.12443.1244
C21.21081.36692.27081.98981.9898
N32.57461.36693.63621.01141.0114
H41.06192.27083.63624.14734.1473
H53.12441.98981.01144.14731.6637
H63.12441.98981.01144.14731.6637

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.291 C2 C1 H4 175.248
C2 N3 H5 112.720 C2 N3 H6 112.720
H5 N3 H6 110.672
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability