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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CID/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 CID/6-311G*
 hartrees
Energy at 0K-132.274002
Energy at 298.15K-132.276278
HF Energy-131.877182
Nuclear repulsion energy59.561189
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 CID/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' 3674 3414 16.59      
2 A' 3558 3305 76.28      
3 A' 2324 2159 85.69      
4 A' 1761 1636 40.91      
5 A' 1099 1021 11.21      
6 A' 751 697 262.16      
7 A' 533 495 105.71      
8 A' 437 406 10.21      
9 A" 3764 3497 25.60      
10 A" 1285 1194 0.00      
11 A" 710 659 41.37      
12 A" 385 358 6.29      

Unscaled Zero Point Vibrational Energy (zpe) 10139.2 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 9420.3 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 CID/6-311G*
ABC
10.21971 0.31249 0.30614

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.049 1.361 0.000
C2 0.000 0.164 0.000
N3 0.126 -1.190 0.000
H4 -0.106 2.420 0.000
H5 -0.242 -1.622 0.829
H6 -0.242 -1.622 -0.829

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.19852.55731.06003.10213.1021
C21.19851.35962.25851.98321.9832
N32.55731.35963.61721.00411.0041
H41.06002.25853.61724.12784.1278
H53.10211.98321.00414.12781.6573
H63.10211.98321.00414.12781.6573

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.010 C2 C1 H4 179.193
C2 N3 H5 113.222 C2 N3 H6 113.222
H5 N3 H6 111.231
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability