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All results from a given calculation for HCCNH2 (Ethynamine)

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

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-pVDZ
 hartrees
Energy at 0K-132.329282
Energy at 298.15K-132.331334
HF Energy-131.858522
Nuclear repulsion energy58.505302
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-pVDZ
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' 3513 3383        
2 A' 3481 3353        
3 A' 2198 2117        
4 A' 1637 1577        
5 A' 1048 1009        
6 A' 799 769        
7 A' 491 473        
8 A' 337 325        
9 A" 3603 3471        
10 A" 1231 1185        
11 A" 632 609        
12 A" 323 311        

Unscaled Zero Point Vibrational Energy (zpe) 9645.9 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 9290.9 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-pVDZ
ABC
9.58636 0.30150 0.29624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.044 1.387 0.000
C2 0.000 0.159 0.000
N3 0.140 -1.215 0.000
H4 -0.097 2.462 0.000
H5 -0.307 -1.618 0.826
H6 -0.307 -1.618 -0.826

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22842.60831.07613.12783.1278
C21.22841.38132.30441.98421.9842
N32.60831.38133.68431.02221.0222
H41.07612.30443.68434.16824.1682
H53.12781.98421.02224.16821.6526
H63.12781.98421.02224.16821.6526

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.271 C2 C1 H4 179.288
C2 N3 H5 110.390 C2 N3 H6 110.390
H5 N3 H6 107.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability