# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry.
# This journal is © The Royal Society of Chemistry 2014

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#                                CCDC 
# 
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# 
#  This CIF contains data from an original supplementary publication
#  deposited with the CCDC, and may include chemical, crystal,
#  experimental, refinement, atomic coordinates,
#  anisotropic displacement parameters and molecular geometry data,
#  as required by the journal to which it was submitted.
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data_shelx

_audit_creation_method           SHELXL-2013
_chemical_name_systematic        '2,3-Dichloro-5-methyl-1H-inden-1-one '
_chemical_name_common            ?
_chemical_melting_point          ?
_chemical_formula_moiety         'C20 H12 Cl4 O2'
_chemical_formula_sum            'C20 H12 Cl4 O2'
_chemical_formula_weight         426.10

loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0181 0.0091 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0492 0.0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Cl Cl 0.3639 0.7018 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'

_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_H-M_alt        'C 2/c'
_space_group_name_Hall           '-C 2yc'

_shelx_space_group_comment       
;
The symmetry employed for this shelxl refinement is uniquely defined
by the following loop, which should always be used as a source of
symmetry information in preference to the above space-group names.
They are only intended as comments.
;

loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, -y+1/2, z-1/2'

_cell_length_a                   18.378(3)
_cell_length_b                   8.8145(3)
_cell_length_c                   14.806(2)
_cell_angle_alpha                90
_cell_angle_beta                 130.63(3)
_cell_angle_gamma                90
_cell_volume                     1820.3(9)
_cell_formula_units_Z            4
_cell_measurement_temperature    293(2)
_cell_measurement_reflns_used    ?
_cell_measurement_theta_min      ?
_cell_measurement_theta_max      ?

_exptl_crystal_description       ?
_exptl_crystal_colour            Yellow
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    ?
_exptl_crystal_density_diffrn    1.555
_exptl_crystal_F_000             864
_exptl_transmission_factor_min   ?
_exptl_transmission_factor_max   ?
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_exptl_absorpt_coefficient_mu    6.015
_shelx_estimated_absorpt_T_min   ?
_shelx_estimated_absorpt_T_max   ?
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_correction_T_min  0.56097
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_process_details   
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.19 (release 27-10-2011 CrysAlis171 .NET)
(compiled Oct 27 2011,15:02:11)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_diffrn_ambient_temperature      293(2)
_diffrn_radiation_wavelength     1.54184
_diffrn_radiation_type           CuK\a
_diffrn_source                   ?
_diffrn_measurement_device_type  ?
_diffrn_measurement_method       ?
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number            3396
_diffrn_reflns_av_unetI/netI     0.0322
_diffrn_reflns_av_R_equivalents  0.0260
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_theta_min         5.874
_diffrn_reflns_theta_max         70.518
_diffrn_reflns_theta_full        67.684
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measured_fraction_theta_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_point_group_measured_fraction_full 0.994
_reflns_number_total             1717
_reflns_number_gt                1359
_reflns_threshold_expression     'I > 2σ(I)'
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_max     .
_reflns_Friedel_fraction_full    .

_reflns_special_details          
;
 Reflections were merged by SHELXL according to the crystal
 class for the calculation of statistics and refinement.
 
 _reflns_Friedel_fraction is defined as the number of unique
 Friedel pairs measured divided by the number that would be
 possible theoretically, ignoring centric projections and
 systematic absences.
;

_computing_data_collection       ?
_computing_cell_refinement       ?
_computing_data_reduction        ?
_computing_structure_solution    ?
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_molecular_graphics    ?
_computing_publication_material  ?

_refine_special_details          
;
 ?
;
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type           full
_refine_ls_weighting_scheme      calc
_refine_ls_weighting_details     
'w=1/[σ²(Fo²)+(0.0764P)²+0.8646P] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_primary     ?
_atom_sites_solution_secondary   ?
_atom_sites_solution_hydrogens   geom
_refine_ls_hydrogen_treatment    constr
_refine_ls_extinction_method     none
_refine_ls_extinction_coef       .
_refine_ls_number_reflns         1717
_refine_ls_number_parameters     119
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0559
_refine_ls_R_factor_gt           0.0465
_refine_ls_wR_factor_ref         0.1428
_refine_ls_wR_factor_gt          0.1308
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_restrained_S_all      1.036
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000

loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_site_symmetry_order
_atom_site_calc_flag
_atom_site_refinement_flags_posn
_atom_site_refinement_flags_adp
_atom_site_refinement_flags_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
Cl2 Cl 0.10568(7) 0.10972(8) 0.46538(7) 0.0893(4) Uani 1 1 d . . . . .
Cl1 Cl 0.11336(8) 0.16109(9) 0.25401(8) 0.0981(4) Uani 1 1 d . . . . .
C5 C 0.1241(2) -0.2491(3) 0.3496(2) 0.0644(7) Uani 1 1 d . . . . .
O1 O 0.15024(18) -0.1656(3) 0.21732(19) 0.0832(7) Uani 1 1 d . . . . .
C8 C 0.1244(2) -0.4027(3) 0.5128(3) 0.0692(7) Uani 1 1 d . . . . .
C4 C 0.0868(2) -0.1814(3) 0.3962(2) 0.0637(7) Uani 1 1 d . . . . .
C9 C 0.0871(2) -0.2573(3) 0.4783(2) 0.0675(7) Uani 1 1 d . . . . .
H6 H 0.0624 -0.2112 0.5098 0.081 Uiso 1 1 calc R U . . .
C7 C 0.1600(2) -0.4708(3) 0.4630(3) 0.0738(8) Uani 1 1 d . . . . .
H12 H 0.1837 -0.5693 0.4850 0.089 Uiso 1 1 calc R U . . .
C3 C 0.0497(3) -0.0232(3) 0.3475(2) 0.0706(8) Uani 1 1 d . . . . .
C6 C 0.1606(2) -0.3950(3) 0.3823(3) 0.0714(8) Uani 1 1 d . . . . .
H9 H 0.1850 -0.4409 0.3504 0.086 Uiso 1 1 calc R U . . .
C2 C 0.0631(3) -0.0070(3) 0.2538(3) 0.0717(8) Uani 1 1 d . . . . .
C10 C 0.1293(3) -0.4858(4) 0.6057(3) 0.0865(10) Uani 1 1 d . . . . .
H8AA H 0.1918 -0.4728 0.6823 0.130 Uiso 1 1 calc R U . . .
H8AB H 0.1174 -0.5918 0.5864 0.130 Uiso 1 1 calc R U . . .
H8AC H 0.0818 -0.4457 0.6077 0.130 Uiso 1 1 calc R U . . .
C1 C 0.1194(2) -0.1471(3) 0.2677(2) 0.0694(8) Uani 1 1 d . . . . .


_geom_special_details            
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;

loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
_geom_bond_site_symmetry_2
_geom_bond_publ_flag
Cl2 C3 1.772(3) . ?
Cl1 C2 1.745(3) . ?
C5 C6 1.384(4) . ?
C5 C4 1.386(4) . ?
C5 C1 1.467(4) . ?
O1 C1 1.206(3) . ?
C8 C9 1.385(4) . ?
C8 C7 1.399(4) . ?
C8 C10 1.509(4) . ?
C4 C9 1.383(3) . ?
C4 C3 1.513(4) . ?
C9 H6 0.9300 . ?
C7 C6 1.375(4) . ?
C7 H12 0.9300 . ?
C3 C2 1.564(3) . ?
C3 C2 1.586(5) 2 ?
C6 H9 0.9300 . ?
C2 C1 1.537(4) . ?
C2 C3 1.586(5) 2 ?
C10 H8AA 0.9600 . ?
C10 H8AB 0.9600 . ?
C10 H8AC 0.9600 . ?

loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle_publ_flag
C6 C5 C4 120.7(2) . . ?
C6 C5 C1 127.8(3) . . ?
C4 C5 C1 111.5(2) . . ?
C9 C8 C7 119.5(2) . . ?
C9 C8 C10 120.4(3) . . ?
C7 C8 C10 120.1(3) . . ?
C9 C4 C5 120.6(3) . . ?
C9 C4 C3 127.4(3) . . ?
C5 C4 C3 112.0(2) . . ?
C4 C9 C8 119.3(3) . . ?
C4 C9 H6 120.4 . . ?
C8 C9 H6 120.4 . . ?
C6 C7 C8 121.3(3) . . ?
C6 C7 H12 119.3 . . ?
C8 C7 H12 119.3 . . ?
C4 C3 C2 103.0(2) . . ?
C4 C3 C2 116.0(2) . 2 ?
C2 C3 C2 90.9(2) . 2 ?
C4 C3 Cl2 110.3(2) . . ?
C2 C3 Cl2 119.2(2) . . ?
C2 C3 Cl2 115.78(19) 2 . ?
C7 C6 C5 118.7(3) . . ?
C7 C6 H9 120.7 . . ?
C5 C6 H9 120.7 . . ?
C1 C2 C3 106.8(2) . . ?
C1 C2 C3 113.9(2) . 2 ?
C3 C2 C3 88.1(2) . 2 ?
C1 C2 Cl1 111.8(2) . . ?
C3 C2 Cl1 117.69(18) . . ?
C3 C2 Cl1 116.27(19) 2 . ?
C8 C10 H8AA 109.5 . . ?
C8 C10 H8AB 109.5 . . ?
H8AA C10 H8AB 109.5 . . ?
C8 C10 H8AC 109.5 . . ?
H8AA C10 H8AC 109.5 . . ?
H8AB C10 H8AC 109.5 . . ?
O1 C1 C5 129.1(3) . . ?
O1 C1 C2 125.0(3) . . ?
C5 C1 C2 106.0(2) . . ?

_refine_diff_density_max         0.342
_refine_diff_density_min         -0.247
_refine_diff_density_rms         0.048

_shelxl_version_number           2013-4


_exptl_crystal_recrystallization_method 
'Re-crystallisation from solvent: Dichloromethane'
_database_code_depnum_ccdc_archive 'CCDC 1015482'
