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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD(T)=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-132.504594
Energy at 298.15K-132.506751
HF Energy-131.901763
Nuclear repulsion energy59.394745
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 CCSD(T)=FULL/cc-pVTZ
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' 3564 3414        
2 A' 3500 3353        
3 A' 2227 2133        
4 A' 1659 1589        
5 A' 1069 1024        
6 A' 705 675        
7 A' 497 476        
8 A' 408 391        
9 A" 3651 3497        
10 A" 1223 1171        
11 A" 655 627        
12 A" 361 346        

Unscaled Zero Point Vibrational Energy (zpe) 9758.7 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 9348.8 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 CCSD(T)=FULL/cc-pVTZ
ABC
10.09840 0.31077 0.30463

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.367 0.000
C2 0.000 0.161 0.000
N3 0.128 -1.193 0.000
H4 -0.093 2.422 0.000
H5 -0.257 -1.621 0.828
H6 -0.257 -1.621 -0.828

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20662.56601.05613.10743.1074
C21.20661.36032.26271.98171.9817
N32.56601.36033.62181.00801.0080
H41.05612.26273.62184.13014.1301
H53.10741.98171.00804.13011.6552
H63.10741.98171.00804.13011.6552

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.888 C2 C1 H4 179.836
C2 N3 H5 112.752 C2 N3 H6 112.752
H5 N3 H6 110.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability