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All results from a given calculation for C4H3ClO (Furan, 2-chloro)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-243.151144
Energy at 298.15K-243.154666
HF Energy-242.647798
Nuclear repulsion energy192.400376
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/LANL2DZ
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' 3326 3203 0.77      
2 A' 3291 3169 0.05      
3 A' 3267 3146 2.60      
4 A' 1535 1479 10.43      
5 A' 1454 1400 58.46      
6 A' 1358 1308 7.25      
7 A' 1237 1191 19.27      
8 A' 1152 1109 46.81      
9 A' 1111 1070 24.90      
10 A' 1035 997 21.68      
11 A' 992 956 27.16      
12 A' 883 850 5.01      
13 A' 868 836 25.93      
14 A' 451 434 2.28      
15 A' 290 279 0.35      
16 A" 797 767 7.16      
17 A" 749 721 56.51      
18 A" 683 658 57.77      
19 A" 591 570 0.44      
20 A" 586 564 11.80      
21 A" 207 199 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 12930.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 12453.5 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/LANL2DZ
ABC
0.29188 0.06615 0.05393

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.277 0.000
C2 1.346 -0.076 0.000
C3 1.381 -1.542 0.000
C4 0.063 -1.992 0.000
O5 -0.827 -0.871 0.000
Cl6 -0.833 1.852 0.000
H7 2.187 0.610 0.000
H8 2.270 -2.167 0.000
H9 -0.423 -2.960 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.39182.28392.27031.41451.78142.21263.33583.2651
C21.39181.46602.30622.31362.90971.08562.28623.3838
C32.28391.46601.39332.30764.05202.29781.08662.2954
C42.27032.30621.39331.43153.94703.35942.21361.0833
O51.41452.31362.30761.43152.72243.35813.35692.1284
Cl61.78142.90974.05203.94702.72243.26595.07754.8296
H72.21261.08562.29783.35943.35813.26592.77884.4231
H83.33582.28621.08662.21363.35695.07752.77882.8071
H93.26513.38382.29541.08332.12844.82964.42312.8071

picture of Furan, 2-chloro state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 106.072 C1 C2 H7 126.094
C1 O5 C4 105.823 C2 C1 O5 111.057
C2 C1 Cl6 132.589 C2 C3 C4 107.500
C2 C3 H8 126.535 C3 C2 H7 127.834
C3 C4 O5 109.547 C3 C4 H9 135.528
C4 C3 H8 125.964 O5 C1 Cl6 116.354
O5 C4 H9 114.925
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability