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: MP2=FULL/6-31G(2df,p)

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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-254.528158
Energy at 298.15K-254.527480
HF Energy-254.168221
Nuclear repulsion energy46.515960
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 MP2=FULL/6-31G(2df,p)
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 2066 1942 16.54      
2 Σ 374 351 57.09      
3 Π 99 93 16.13      
3 Π 99 93 16.13      

Unscaled Zero Point Vibrational Energy (zpe) 1318.8 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 1239.5 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 MP2=FULL/6-31G(2df,p)
B
0.15528

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.673
N2 0.000 0.000 -1.855
Na3 0.000 0.000 1.547

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18212.2195
N21.18213.4016
Na32.21953.4016

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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-254.535697
Energy at 298.15K-254.535464
HF Energy-254.178637
Nuclear repulsion energy51.909921
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 MP2=FULL/6-31G(2df,p)
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' 1993 1873 9.70      
2 A' 381 358 62.00      
3 A' 194 183 6.08      

Unscaled Zero Point Vibrational Energy (zpe) 1284.1 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 1206.9 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 MP2=FULL/6-31G(2df,p)
ABC
1.85714 0.28515 0.24719

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.086 0.610 0.000
N2 0.000 1.101 0.000
Na3 -0.592 -1.034 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19172.3495
N21.19172.2151
Na32.34952.2151

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 81.213 C1 Na3 N2 30.084
N2 C1 Na3 68.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-254.527315
Energy at 298.15K 
HF Energy-254.176976
Nuclear repulsion energy48.917352
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 MP2=FULL/6-31G(2df,p)
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 2056 1932 61.54      
2 Σ 421 395 65.67      
3 Π 42i 40i 3.84      
3 Π 42i 40i 3.84      

Unscaled Zero Point Vibrational Energy (zpe) 1196.2 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 1124.3 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 MP2=FULL/6-31G(2df,p)
B
0.17972

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.847
N2 0.000 0.000 -0.660
Na3 0.000 0.000 1.427

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18703.2739
N21.18702.0868
Na33.27392.0868

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