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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: QCISD(T)=FULL/6-31G*

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/6-31G*
 hartrees
Energy at 0K-132.304221
Energy at 298.15K-132.306231
HF Energy-131.841907
Nuclear repulsion energy58.833648
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/6-31G*
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' 3505 3505        
2 A' 3490 3490        
3 A' 2224 2224        
4 A' 1695 1695        
5 A' 1063 1063        
6 A' 760 760        
7 A' 489 489        
8 A' 367 367        
9 A" 3598 3598        
10 A" 1240 1240        
11 A" 594 594        
12 A" 306 306        

Unscaled Zero Point Vibrational Energy (zpe) 9664.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9664.5 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/6-31G*
ABC
9.78309 0.30519 0.29940

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.138 1.373 0.000
C2 0.000 0.163 0.000
N3 -0.006 -1.211 0.000
H4 0.118 2.442 0.000
H5 -0.451 -1.594 0.832
H6 -0.451 -1.594 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21802.58811.06833.13793.1379
C21.21801.37402.28131.99611.9961
N32.58811.37403.65431.01841.0184
H41.06832.28133.65434.15974.1597
H53.13791.99611.01844.15971.6643
H63.13791.99611.01844.15971.6643

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.757 C2 C1 H4 172.425
C2 N3 H5 112.247 C2 N3 H6 112.247
H5 N3 H6 109.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability