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

using model chemistry: MP2=FULL/3-21G*

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=FULL/3-21G*
 hartrees
Energy at 0K-684.791635
Energy at 298.15K-684.795351
HF Energy-684.159566
Nuclear repulsion energy260.875281
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/3-21G*
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' 3341 3168 0.10      
2 A' 3315 3142 0.74      
3 A' 3295 3124 0.54      
4 A' 1554 1473 17.64      
5 A' 1465 1389 39.83      
6 A' 1389 1317 20.77      
7 A' 1276 1210 8.14      
8 A' 1180 1119 27.70      
9 A' 1136 1077 37.98      
10 A' 1044 989 17.02      
11 A' 1025 972 10.93      
12 A' 914 866 3.23      
13 A' 895 848 24.72      
14 A' 487 462 3.63      
15 A' 306 290 0.29      
16 A" 822 779 5.09      
17 A" 792 751 21.40      
18 A" 735 697 69.16      
19 A" 622 590 7.14      
20 A" 603 572 4.44      
21 A" 223 212 2.56      

Unscaled Zero Point Vibrational Energy (zpe) 13209.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 12522.3 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/3-21G*
ABC
0.29798 0.06930 0.05622

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.287 0.000
C2 1.310 -0.119 0.000
C3 1.287 -1.571 0.000
C4 -0.028 -1.961 0.000
O5 -0.874 -0.816 0.000
Cl6 -0.718 1.842 0.000
H7 2.175 0.524 0.000
H8 2.146 -2.224 0.000
H9 -0.540 -2.907 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 Cl6 H7 H8 H9
C11.37132.26032.24761.40701.71302.18753.30293.2391
C21.37131.45212.27642.29262.82091.07782.26493.3457
C32.26031.45211.37212.29003.95862.27541.07862.2635
C42.24762.27641.37211.42393.86483.32082.19011.0757
O51.40702.29262.29001.42392.66233.33033.33262.1182
Cl61.71302.82093.95863.86482.66233.17834.97334.7526
H72.18751.07782.27543.32083.33033.17832.74844.3751
H83.30292.26491.07862.19013.33264.97332.74842.7712
H93.23913.34572.26351.07572.11824.75264.37512.7712

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 106.333 C1 C2 H7 126.130
C1 O5 C4 105.117 C2 C1 O5 111.206
C2 C1 Cl6 131.986 C2 C3 C4 107.381
C2 C3 H8 126.369 C3 C2 H7 127.537
C3 C4 O5 109.963 C3 C4 H9 134.885
C4 C3 H8 126.250 O5 C1 Cl6 116.808
O5 C4 H9 115.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability