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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CCSD=FULL/6-311+G(3df,2p)

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=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.499837
Energy at 298.15K-132.502061
HF Energy-131.901173
Nuclear repulsion energy59.511409
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=FULL/6-311+G(3df,2p)
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' 3602 3602 20.08      
2 A' 3505 3505 82.25      
3 A' 2255 2255 103.98      
4 A' 1670 1670 27.58      
5 A' 1082 1082 14.65      
6 A' 674 674 188.22      
7 A' 535 535 94.26      
8 A' 439 439 13.51      
9 A" 3694 3694 39.16      
10 A" 1224 1224 0.66      
11 A" 704 704 38.63      
12 A" 365 365 7.60      

Unscaled Zero Point Vibrational Energy (zpe) 9873.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9873.9 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=FULL/6-311+G(3df,2p)
ABC
10.23452 0.31214 0.30573

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.041 1.364 0.000
C2 0.000 0.162 0.000
N3 0.117 -1.189 0.000
H4 -0.083 2.423 0.000
H5 -0.247 -1.627 0.830
H6 -0.247 -1.627 -0.830

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.20182.55781.06003.11083.1108
C21.20181.35682.26181.98841.9884
N32.55781.35683.61761.00691.0069
H41.06002.26183.61764.13754.1375
H53.11081.98841.00694.13751.6604
H63.11081.98841.00694.13751.6604

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.980 C2 C1 H4 179.642
C2 N3 H5 113.710 C2 N3 H6 113.710
H5 N3 H6 111.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability