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All results from a given calculation for HCCNH2 (Ethynamine)

using model chemistry: QCISD/aug-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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-132.331054
Energy at 298.15K-132.333008
HF Energy-131.867917
Nuclear repulsion energy58.635810
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 QCISD/aug-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' 3539 3428 12.31      
2 A' 3476 3367 76.15      
3 A' 2213 2144 90.71      
4 A' 1644 1592 22.45      
5 A' 1052 1019 11.17      
6 A' 700 678 174.60      
7 A' 475 460 86.15      
8 A' 322 312 12.87      
9 A" 3633 3519 28.29      
10 A" 1217 1179 1.41      
11 A" 607 588 42.48      
12 A" 305 296 3.47      

Unscaled Zero Point Vibrational Energy (zpe) 9591.4 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 9291.2 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 QCISD/aug-cc-pVDZ
ABC
9.90550 0.30263 0.29677

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.024 1.386 0.000
C2 0.000 0.161 0.000
N3 0.111 -1.211 0.000
H4 -0.056 2.460 0.000
H5 -0.288 -1.635 0.834
H6 -0.288 -1.635 -0.834

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.22492.60021.07403.14533.1453
C21.22491.37662.29882.00162.0016
N32.60021.37663.67411.01731.0173
H41.07402.29883.67414.18524.1852
H53.14532.00161.01734.18521.6675
H63.14532.00161.01734.18521.6675

picture of Ethynamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.495 C2 C1 H4 179.381
C2 N3 H5 112.601 C2 N3 H6 112.601
H5 N3 H6 110.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability