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 C5H5N (Bicyclo[1.1.0]butane-1-carbonitrile)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-247.579947
Energy at 298.15K-247.585042
HF Energy-246.628825
Nuclear repulsion energy198.535270
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 MP2/6-31G(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' 3323 3139 1.49      
2 A' 3265 3083 6.08      
3 A' 3149 2974 21.27      
4 A' 2215 2092 17.93      
5 A' 1550 1464 3.04      
6 A' 1427 1348 4.10      
7 A' 1215 1147 0.82      
8 A' 1152 1088 12.38      
9 A' 1113 1051 3.68      
10 A' 961 908 5.26      
11 A' 916 865 36.64      
12 A' 785 742 15.65      
13 A' 626 591 17.30      
14 A' 511 482 0.70      
15 A' 426 402 0.87      
16 A' 185 175 2.99      
17 A" 3267 3085 0.07      
18 A" 3156 2981 12.91      
19 A" 1499 1416 0.23      
20 A" 1315 1242 0.11      
21 A" 1166 1101 0.07      
22 A" 1103 1042 0.04      
23 A" 1044 986 0.41      
24 A" 952 899 0.00      
25 A" 881 832 0.00      
26 A" 545 515 0.14      
27 A" 185 174 6.01      

Unscaled Zero Point Vibrational Energy (zpe) 18965.2 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 17912.6 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 MP2/6-31G(2df,p)
ABC
0.29593 0.09700 0.08350

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.684 -0.038 2.076
H2 -1.545 1.337 1.216
C3 -0.978 0.412 1.134
H4 -0.684 -0.038 -2.076
H5 -1.545 1.337 -1.216
C6 -0.978 0.412 -1.134
C7 0.000 0.298 0.000
H8 -1.338 -1.588 0.000
C9 -1.273 -0.514 0.000
N10 2.452 -0.529 0.000
C11 1.335 -0.161 0.000

Atom - Atom Distances (Å)
  H1 H2 C3 H4 H5 C6 C7 H8 C9 N10 C11
H11.83681.08474.15223.66993.25512.21172.67222.20993.79302.8984
H21.83681.08803.66992.43102.58812.22383.17472.23094.57573.4662
C31.08471.08803.25512.58812.26841.50182.32801.49393.73302.6385
H44.15223.66993.25511.83681.08472.21172.67222.20993.79302.8984
H53.66992.43102.58811.83681.08802.22383.17472.23094.57573.4662
C63.25512.58812.26841.08471.08801.50182.32801.49393.73302.6385
C72.21172.22381.50182.21172.22381.50182.31281.51022.58761.4111
H82.67223.17472.32802.67223.17472.32802.31281.07663.93543.0300
C92.20992.23091.49392.20992.23091.49391.51021.07663.72552.6318
N103.79304.57573.73303.79304.57573.73302.58763.93543.72551.1765
C112.89843.46622.63852.89843.46622.63851.41113.03002.63181.1765

picture of Bicyclo[1.1.0]butane-1-carbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C3 H2 115.431 H1 C3 C7 116.616
H1 C3 C9 117.081 H2 C3 C7 117.440
H2 C3 C9 118.708 C3 C7 C6 98.087
C3 C7 C9 59.466 C3 C7 C11 129.826
C3 C9 C6 98.794 C3 C9 C7 59.988
C3 C9 H8 129.104 H4 C6 H5 115.431
H4 C6 C7 116.616 H4 C6 C9 117.081
H5 C6 C7 117.440 H5 C6 C9 118.708
C6 C7 C9 59.466 C6 C7 C11 129.826
C6 C9 C7 59.988 C6 C9 H8 129.104
C7 C3 C9 60.546 C7 C6 C9 60.546
C7 C9 H8 125.951 C7 C11 N10 179.262
C9 C7 C11 128.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability