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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP3=FULL/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 MP3=FULL/6-311G**
 hartrees
Energy at 0K-132.403349
Energy at 298.15K-132.405606
HF Energy-131.886162
Nuclear repulsion energy59.353142
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 MP3=FULL/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' 3621 3621 16.29      
2 A' 3545 3545 80.13      
3 A' 2294 2294 83.34      
4 A' 1668 1668 30.35      
5 A' 1083 1083 11.40      
6 A' 745 745 222.14      
7 A' 551 551 90.49      
8 A' 423 423 8.61      
9 A" 3709 3709 25.61      
10 A" 1239 1239 0.30      
11 A" 711 711 37.63      
12 A" 366 366 5.26      

Unscaled Zero Point Vibrational Energy (zpe) 9977.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9977.5 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 MP3=FULL/6-311G**
ABC
10.03361 0.31041 0.30431

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.044 1.366 0.000
C2 0.000 0.163 0.000
N3 0.126 -1.195 0.000
H4 -0.095 2.427 0.000
H5 -0.264 -1.618 0.829
H6 -0.264 -1.618 -0.829

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20392.56721.06153.10483.1048
C21.20391.36442.26531.98201.9820
N32.56721.36443.62861.00891.0089
H41.06152.26533.62864.13184.1318
H53.10481.98201.00894.13181.6577
H63.10481.98201.00894.13181.6577

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.766 C2 C1 H4 179.339
C2 N3 H5 112.397 C2 N3 H6 112.397
H5 N3 H6 110.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability