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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: QCISD(T)/6-311G*

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)/6-311G*
 hartrees
Energy at 0K-132.344393
Energy at 298.15K-132.346408
HF Energy-131.874452
Nuclear repulsion energy58.951135
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)/6-311G*
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' 3543 3412        
2 A' 3455 3327        
3 A' 2194 2113        
4 A' 1715 1652        
5 A' 1054 1014        
6 A' 765 736        
7 A' 481 463        
8 A' 340 328        
9 A" 3633 3498        
10 A" 1250 1204        
11 A" 609 586        
12 A" 321 309        

Unscaled Zero Point Vibrational Energy (zpe) 9680.0 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 9319.9 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)/6-311G*
ABC
9.94392 0.30610 0.30012

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.079 1.376 0.000
C2 0.000 0.162 0.000
N3 0.033 -1.209 0.000
H4 0.066 2.443 0.000
H5 -0.386 -1.605 0.832
H6 -0.386 -1.605 -0.832

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21702.58521.06733.12993.1299
C21.21701.37072.28271.99081.9908
N32.58521.37073.65221.01281.0128
H41.06732.28273.65224.15784.1578
H53.12991.99081.01284.15781.6645
H63.12991.99081.01284.15781.6645

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.891 C2 C1 H4 175.601
C2 N3 H5 112.410 C2 N3 H6 112.410
H5 N3 H6 110.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability