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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: MP2=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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-132.388932
Energy at 298.15K-132.391104
HF Energy-131.884819
Nuclear repulsion energy59.152303
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/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' 3583 3399 17.27      
2 A' 3531 3350 80.88      
3 A' 2211 2097 77.93      
4 A' 1644 1560 30.21      
5 A' 1070 1015 10.09      
6 A' 745 706 223.74      
7 A' 527 500 85.05      
8 A' 391 371 6.65      
9 A" 3682 3492 30.17      
10 A" 1221 1158 0.12      
11 A" 665 631 39.18      
12 A" 354 336 4.33      

Unscaled Zero Point Vibrational Energy (zpe) 9811.9 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 9307.6 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/6-311G**
ABC
9.98823 0.30831 0.30230

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.026 1.374 0.000
C2 0.000 0.159 0.000
N3 0.113 -1.199 0.000
H4 -0.063 2.435 0.000
H5 -0.285 -1.619 0.830
H6 -0.285 -1.619 -0.830

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21532.57681.06213.11633.1163
C21.21531.36272.27731.98231.9823
N32.57681.36273.63871.01151.0115
H41.06212.27733.63874.14394.1439
H53.11631.98231.01154.14391.6597
H63.11631.98231.01154.14391.6597

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.473 C2 C1 H4 179.212
C2 N3 H5 112.378 C2 N3 H6 112.378
H5 N3 H6 110.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability