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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: B2PLYP=FULLultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-132.582881
Energy at 298.15K 
HF Energy-132.413673
Nuclear repulsion energy59.473132
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 B2PLYP=FULLultrafine/6-31G(2df,p)
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' 3568 3568 8.29      
2 A' 3550 3550 91.97      
3 A' 2252 2252 73.66      
4 A' 1655 1655 23.57      
5 A' 1082 1082 10.32      
6 A' 684 684 202.69      
7 A' 505 505 86.68      
8 A' 429 429 11.96      
9 A" 3656 3656 29.55      
10 A" 1214 1214 0.02      
11 A" 695 695 33.60      
12 A" 380 380 5.42      

Unscaled Zero Point Vibrational Energy (zpe) 9834.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9834.2 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 B2PLYP=FULLultrafine/6-31G(2df,p)
ABC
10.17686 0.31194 0.30563

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.046 1.365 0.000
C2 0.000 0.160 0.000
N3 0.124 -1.188 0.000
H4 -0.096 2.422 0.000
H5 -0.248 -1.629 0.829
H6 -0.248 -1.629 -0.829

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20572.55871.05823.11343.1134
C21.20571.35392.26381.98771.9877
N32.55871.35393.61671.01011.0101
H41.05822.26383.61674.13804.1380
H53.11341.98771.01014.13801.6585
H63.11341.98771.01014.13801.6585

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.935 C2 C1 H4 179.487
C2 N3 H5 113.654 C2 N3 H6 113.654
H5 N3 H6 110.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability