return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NaCN (Sodium Cyanide)

using model chemistry: QCISD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C*V 1Σ
1 2 yes CS 1A
1 3 no C*V 1Σ

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-254.468188
Energy at 298.15K-254.467525
HF Energy-254.159978
Nuclear repulsion energy45.988419
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(T)/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2148 2061        
2 Σ 358 343        
3 Π 110 105        
3 Π 110 105        

Unscaled Zero Point Vibrational Energy (zpe) 1362.6 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 1307.1 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(T)/6-31G*
B
0.15068

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.692
N2 0.000 0.000 -1.877
Na3 0.000 0.000 1.572

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18512.2644
N21.18513.4495
Na32.26443.4495

picture of Sodium Cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 Na3 0.000 C1 Na3 N2 0.000
N2 C1 Na3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1 S1C3
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-254.475223
Energy at 298.15K-254.474978
HF Energy-254.167665
Nuclear repulsion energy51.162867
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(T)/6-31G*
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' 383 367        
2 A' 188 181        
3 A' 2053 1969        

Unscaled Zero Point Vibrational Energy (zpe) 1311.9 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 1258.5 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(T)/6-31G*
ABC
1.84405 0.27297 0.23777

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.096 0.639 0.000
N2 0.000 1.119 0.000
Na3 -0.598 -1.061 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19652.3996
N21.19652.2601
Na32.39962.2601

picture of Sodium Cyanide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 Na3 81.690 C1 Na3 N2 29.563
N2 C1 Na3 68.747
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-254.466689
Energy at 298.15K 
HF Energy-254.164809
Nuclear repulsion energy48.213536
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(T)/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2092 2007        
2 Σ 409 392        
3 Π 63i 61i        
3 Π 63i 61i        

Unscaled Zero Point Vibrational Energy (zpe) 1187.4 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 1139.1 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(T)/6-31G*
B
0.17362

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.873
N2 0.000 0.000 -0.679
Na3 0.000 0.000 1.454

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19423.3268
N21.19422.1326
Na33.32682.1326

picture of Sodium Cyanide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 Na3 180.000 C1 Na3 N2 0.000
N2 C1 Na3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability