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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCD/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 CCD/cc-pVDZ
 hartrees
Energy at 0K-132.301945
Energy at 298.15K-132.304138
HF Energy-131.859794
Nuclear repulsion energy58.689396
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 CCD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3549 3395 10.07      
2 A' 3501 3349 74.60      
3 A' 2259 2161 64.20      
4 A' 1653 1581 21.31      
5 A' 1062 1016 7.79      
6 A' 801 766 198.42      
7 A' 533 510 71.27      
8 A' 391 374 8.76      
9 A" 3638 3480 19.63      
10 A" 1242 1188 0.73      
11 A" 669 640 33.15      
12 A" 349 334 3.60      

Unscaled Zero Point Vibrational Energy (zpe) 9822.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9397.5 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 CCD/cc-pVDZ
ABC
9.64606 0.30351 0.29812

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.074 1.380 0.000
C2 0.000 0.162 0.000
N3 0.162 -1.208 0.000
H4 -0.147 2.453 0.000
H5 -0.271 -1.623 0.826
H6 -0.271 -1.623 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22062.59871.07523.12023.1202
C21.22061.37912.29581.98461.9846
N32.59871.37913.67371.02051.0205
H41.07522.29583.67374.15984.1598
H53.12021.98461.02054.15981.6520
H63.12021.98461.02054.15981.6520

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.731 C2 C1 H4 179.544
C2 N3 H5 110.708 C2 N3 H6 110.708
H5 N3 H6 108.071
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability