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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-132.463709
Energy at 298.15K-132.465883
HF Energy-131.901719
Nuclear repulsion energy59.487081
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 MP2=FULL/cc-pVTZ
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' 3589 3407 23.77      
2 A' 3530 3352 87.84      
3 A' 2224 2111 92.52      
4 A' 1654 1570 26.73      
5 A' 1082 1027 12.80      
6 A' 687 652 199.73      
7 A' 509 483 93.28      
8 A' 418 397 7.74      
9 A" 3685 3499 42.04      
10 A" 1216 1154 0.19      
11 A" 648 616 41.00      
12 A" 370 352 5.07      

Unscaled Zero Point Vibrational Energy (zpe) 9805.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9309.5 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 MP2=FULL/cc-pVTZ
ABC
10.18727 0.31183 0.30556

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.032 1.367 0.000
C2 0.000 0.159 0.000
N3 0.113 -1.190 0.000
H4 -0.068 2.420 0.000
H5 -0.265 -1.621 0.828
H6 -0.265 -1.621 -0.828

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20842.56091.05453.10853.1085
C21.20841.35362.26281.98021.9802
N32.56091.35363.61521.00671.0067
H41.05452.26283.61524.12964.1296
H53.10851.98021.00674.12961.6556
H63.10851.98021.00674.12961.6556

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.734 C2 C1 H4 179.555
C2 N3 H5 113.244 C2 N3 H6 113.244
H5 N3 H6 110.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability