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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: CID/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 CID/cc-pVDZ
 hartrees
Energy at 0K-132.254026
Energy at 298.15K-132.256342
HF Energy-131.861394
Nuclear repulsion energy59.074453
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/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' 3634 3358 16.27      
2 A' 3568 3297 85.74      
3 A' 2322 2146 76.69      
4 A' 1684 1556 23.50      
5 A' 1092 1009 10.67      
6 A' 788 728 206.16      
7 A' 569 526 77.75      
8 A' 436 403 13.44      
9 A" 3724 3441 28.57      
10 A" 1263 1167 0.52      
11 A" 726 671 33.78      
12 A" 377 348 4.80      

Unscaled Zero Point Vibrational Energy (zpe) 10091.7 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 9324.7 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/cc-pVDZ
ABC
9.83117 0.30755 0.30187

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.092 1.370 0.000
C2 0.000 0.162 0.000
N3 0.172 -1.197 0.000
H4 -0.180 2.436 0.000
H5 -0.236 -1.622 0.825
H6 -0.236 -1.622 -0.825

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.21102.58041.06973.10663.1066
C21.21101.37022.28071.97981.9798
N32.58041.37023.64991.01401.0140
H41.06972.28073.64994.14114.1411
H53.10661.97981.01404.14111.6502
H63.10661.97981.01404.14111.6502

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 177.143 C2 C1 H4 179.667
C2 N3 H5 111.404 C2 N3 H6 111.404
H5 N3 H6 108.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability