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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD(T)=FULL/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-132.357377
Energy at 298.15K-132.359238
HF Energy-131.867035
Nuclear repulsion energy58.518624
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-pVDZ
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' 3511 3410        
2 A' 3462 3362        
3 A' 2179 2116        
4 A' 1630 1583        
5 A' 1043 1013        
6 A' 695 675        
7 A' 465 452        
8 A' 282 274        
9 A" 3607 3503        
10 A" 1206 1171        
11 A" 585 568        
12 A" 290 282        

Unscaled Zero Point Vibrational Energy (zpe) 9477.4 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 9204.4 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-pVDZ
ABC
9.86902 0.30141 0.29561

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.017 1.390 0.000
C2 0.000 0.160 0.000
N3 0.080 -1.215 0.000
H4 0.005 2.465 0.000
H5 -0.333 -1.629 0.834
H6 -0.333 -1.629 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.23002.60581.07493.15203.1520
C21.23001.37752.30472.00232.0023
N32.60581.37753.68061.01881.0188
H41.07492.30473.68064.19194.1919
H53.15202.00231.01884.19191.6683
H63.15202.00231.01884.19191.6683

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.883 C2 C1 H4 178.540
C2 N3 H5 112.494 C2 N3 H6 112.494
H5 N3 H6 109.928
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability