##############################################################################
###                                                                        ###
###        Electronic paper (Acta Crystallographica Section E)             ###
###                                                                        ###
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#                                                                            #
# This CIF contains the data in a paper accepted for publication in Acta     #
# Crystallographica Section E. It conforms to the requirements of Notes      #
# for Authors for Section E, and has been peer reviewed under the auspices   #
# of the IUCr Commission on Journals.                                        #
#                                                                            #
# Full details of the Crystallographic Information File format               #
# are given in the paper "The Crystallographic Information File (CIF):       #
# a New Standard Archive File for Crystallography" by S. R. Hall, F. H.      #
# Allen and I. D. Brown [Acta Cryst. (1991), A47, 655-685].                  #
#                                                                            #
# The current version of the core CIF dictionary is obtainable from          #
# ftp://ftp.iucr.org/pub/cif_core.dic. The current version number is 2.4.    #
#                                                                            #
# Software is freely available for graphical display of the structure(s) in  #
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data_I
_audit_creation_method     SHELXL-97
_chemical_name_systematic
;
4-[(6-Chloro-2-pyridyl)methoxy]-3-(2,4-dichlorophenyl)-1-oxaspiro[4.5]dec-\
3-en-2-one
;
_chemical_name_common     ?
_chemical_formula_moiety     'C21 H18 Cl3 N O3'
_chemical_formula_sum     'C21 H18 Cl3 N O3'
_chemical_formula_iupac     'C21 H18 Cl3 N O3'
_chemical_formula_weight     438.71
_chemical_melting_point     ?
_symmetry_cell_setting     monoclinic
_symmetry_space_group_name_H-M     'P 21/n'
_symmetry_space_group_name_Hall     '-P 2yn'
loop_
    _symmetry_equiv_pos_as_xyz
    'x, y, z'
    '-x+1/2, y+1/2, -z+1/2'
    '-x, -y, -z'
    'x-1/2, -y-1/2, z-1/2'
_cell_length_a     7.2457(14)
_cell_length_b     13.108(3)
_cell_length_c     21.054(4)
_cell_angle_alpha     90.00
_cell_angle_beta     95.77(3)
_cell_angle_gamma     90.00
_cell_volume     1989.5(7)
_cell_formula_units_Z     4
_cell_measurement_reflns_used     5265
_cell_measurement_theta_min     1.553
_cell_measurement_theta_max     27.948
_cell_measurement_temperature     113(2)
_exptl_crystal_description     Platelet
_exptl_crystal_colour     colourless
_exptl_crystal_size_max     0.18
_exptl_crystal_size_mid     0.12
_exptl_crystal_size_min     0.06
_exptl_crystal_density_diffrn     1.465
_exptl_crystal_density_meas     ?
_exptl_crystal_density_method     'not measured'
_exptl_crystal_F_000     904
_exptl_absorpt_coefficient_mu     0.483
_exptl_absorpt_correction_type     multi-scan
_exptl_absorpt_process_details     '(CrystalClear; Rigaku, 2005)'
_exptl_absorpt_correction_T_min     0.9180
_exptl_absorpt_correction_T_max     0.9716
_exptl_special_details
;
;
_diffrn_ambient_temperature     113(2)
_diffrn_radiation_type     MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_source     'rotating anode'
_diffrn_radiation_monochromator     confocal
_diffrn_measurement_device_type     'Rigaku Saturn'
_diffrn_measurement_method     ω
_diffrn_detector_area_resol_mean     ?
_diffrn_reflns_number     14740
_diffrn_reflns_av_R_equivalents     0.0405
_diffrn_reflns_av_sigmaI/netI     0.0315
_diffrn_reflns_theta_min     1.83
_diffrn_reflns_theta_max     25.02
_diffrn_reflns_theta_full     25.02
_diffrn_measured_fraction_theta_max     1.000
_diffrn_measured_fraction_theta_full     1.000
_diffrn_reflns_limit_h_min     -8
_diffrn_reflns_limit_h_max     8
_diffrn_reflns_limit_k_min     -15
_diffrn_reflns_limit_k_max     15
_diffrn_reflns_limit_l_min     -25
_diffrn_reflns_limit_l_max     25
_diffrn_standards_number     0
_diffrn_standards_interval_count     0
_diffrn_standards_interval_time     0
_diffrn_standards_decay_%     0
_refine_special_details
;
Refinement of F² against ALL reflections. The weighted R-factor
wR and goodness of fit S are based on F², conventional
R-factors R are based on F, with F set to zero for
negative F². The threshold expression of F² >
σ(F²) is used only for calculating R-factors(gt) etc.
and is not relevant to the choice of reflections for refinement.
R-factors based on F² are statistically about twice as large
as those based on F, and R- factors based on ALL data will be
even larger.
;
_reflns_number_total     3519
_reflns_number_gt     3191
_reflns_threshold_expression     I>2σ(I)
_refine_ls_structure_factor_coef     Fsqd
_refine_ls_matrix_type     full
_refine_ls_R_factor_all     0.0381
_refine_ls_R_factor_gt     0.0337
_refine_ls_wR_factor_gt     0.0859
_refine_ls_wR_factor_ref     0.0892
_refine_ls_goodness_of_fit_ref     1.079
_refine_ls_restrained_S_all     1.079
_refine_ls_number_reflns     3519
_refine_ls_number_parameters     253
_refine_ls_number_restraints     0
_refine_ls_hydrogen_treatment     constr
_refine_ls_weighting_scheme     calc
_refine_ls_weighting_details
                  'calc w=1/[σ²(Fo²)+(0.053P)²] where P=(Fo²+2Fc²)/3'
_atom_sites_solution_hydrogens     geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary     difmap
_refine_ls_shift/su_max     0.001
_refine_ls_shift/su_mean     0.000
_refine_diff_density_max     0.180
_refine_diff_density_min     -0.311
_refine_ls_extinction_method     none
_refine_ls_extinction_coef     ?
loop_
    _atom_type_symbol
    _atom_type_description
    _atom_type_scat_dispersion_real
    _atom_type_scat_dispersion_imag
    _atom_type_scat_source
    'C' 'C' 0.0033 0.0016
                         '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'
    'N' 'N' 0.0061 0.0033
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
    'O' 'O' 0.0106 0.0060
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
    'Cl' 'Cl' 0.1484 0.1585
                         'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
_computing_data_collection     'CrystalClear (Rigaku, 2005)'
_computing_cell_refinement     'CrystalClear (Rigaku, 2005)'
_computing_data_reduction     'CrystalClear (Rigaku, 2005)'
_computing_structure_solution     'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement     'SHELXTL (Sheldrick, 2008)'
_computing_molecular_graphics     'SHELXTL (Sheldrick, 2008)'
_computing_publication_material     'SHELXTL (Sheldrick, 2008)'
loop_
    _atom_site_type_symbol
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    _atom_site_U_iso_or_equiv
    _atom_site_adp_type
    _atom_site_calc_flag
    _atom_site_refinement_flags
    _atom_site_occupancy
    _atom_site_disorder_assembly
    _atom_site_disorder_group
    Cl Cl1 -0.28480(7) -0.08999(4) 0.06950(2) 0.03906(15) Uani d . 1 . .
    Cl Cl2 -0.06561(6) 0.21586(3) 0.228775(19) 0.02533(13) Uani d . 1 . .
    Cl Cl3 0.36534(7) 0.22352(4) 0.06907(2) 0.03617(15) Uani d . 1 . .
    O O1 0.00146(14) 0.14206(8) 0.42592(5) 0.0204(3) Uani d . 1 . .
    O O2 -0.26135(15) 0.13568(9) 0.35960(5) 0.0248(3) Uani d . 1 . .
    O O3 0.35068(14) 0.00872(8) 0.35405(5) 0.0226(3) Uani d . 1 . .
    N N1 0.4102(2) 0.18419(11) 0.19104(7) 0.0264(3) Uani d . 1 . .
    C C1 0.1925(2) 0.10733(12) 0.42562(7) 0.0188(3) Uani d . 1 . .
    C C2 0.3193(2) 0.20111(12) 0.42615(8) 0.0239(4) Uani d . 1 . .
    H H2A 0.4436 0.1795 0.4190 0.029 Uiso calc R 1 . .
    H H2B 0.2745 0.2464 0.3915 0.029 Uiso calc R 1 . .
    C C3 0.3264(2) 0.25889(13) 0.48925(8) 0.0275(4) Uani d . 1 . .
    H H3A 0.2050 0.2870 0.4944 0.033 Uiso calc R 1 . .
    H H3B 0.4135 0.3150 0.4889 0.033 Uiso calc R 1 . .
    C C4 0.3862(3) 0.18769(13) 0.54514(8) 0.0292(4) Uani d . 1 . .
    H H4A 0.5117 0.1641 0.5416 0.035 Uiso calc R 1 . .
    H H4B 0.3862 0.2251 0.5849 0.035 Uiso calc R 1 . .
    C C5 0.2574(2) 0.09592(13) 0.54645(8) 0.0259(4) Uani d . 1 . .
    H H5A 0.1351 0.1188 0.5551 0.031 Uiso calc R 1 . .
    H H5B 0.3042 0.0502 0.5806 0.031 Uiso calc R 1 . .
    C C6 0.2430(2) 0.03854(12) 0.48280(7) 0.0211(4) Uani d . 1 . .
    H H6A 0.3608 0.0058 0.4780 0.025 Uiso calc R 1 . .
    H H6B 0.1498 -0.0145 0.4835 0.025 Uiso calc R 1 . .
    C C7 0.1869(2) 0.05012(11) 0.36345(7) 0.0182(3) Uani d . 1 . .
    C C8 0.3726(2) -0.04708(12) 0.29626(8) 0.0251(4) Uani d . 1 . .
    H H8A 0.2760 -0.0984 0.2901 0.030 Uiso calc R 1 . .
    H H8B 0.4911 -0.0822 0.3010 0.030 Uiso calc R 1 . .
    C C9 0.3640(2) 0.01985(12) 0.23785(8) 0.0221(4) Uani d . 1 . .
    C C10 0.3138(2) -0.02018(13) 0.17760(8) 0.0285(4) Uani d . 1 . .
    H H10 0.2810 -0.0886 0.1730 0.034 Uiso calc R 1 . .
    C C11 0.3125(2) 0.04149(14) 0.12452(8) 0.0293(4) Uani d . 1 . .
    H H11 0.2799 0.0162 0.0837 0.035 Uiso calc R 1 . .
    C C12 0.3619(2) 0.14262(13) 0.13470(8) 0.0254(4) Uani d . 1 . .
    C C13 0.4111(2) 0.12222(13) 0.24178(8) 0.0247(4) Uani d . 1 . .
    H H13 0.4453 0.1496 0.2820 0.030 Uiso calc R 1 . .
    C C14 0.0183(2) 0.05485(11) 0.33042(7) 0.0185(3) Uani d . 1 . .
    C C15 -0.0991(2) 0.11385(12) 0.37036(7) 0.0199(4) Uani d . 1 . .
    C C16 -0.0574(2) 0.01791(12) 0.26666(7) 0.0190(3) Uani d . 1 . .
    C C17 -0.0880(2) -0.08572(12) 0.25352(8) 0.0233(4) Uani d . 1 . .
    H H17 -0.0618 -0.1332 0.2860 0.028 Uiso calc R 1 . .
    C C18 -0.1565(2) -0.11919(13) 0.19334(8) 0.0263(4) Uani d . 1 . .
    H H18 -0.1736 -0.1885 0.1853 0.032 Uiso calc R 1 . .
    C C19 -0.1993(2) -0.04852(13) 0.14529(8) 0.0253(4) Uani d . 1 . .
    C C20 -0.1746(2) 0.05474(12) 0.15634(8) 0.0229(4) Uani d . 1 . .
    H H20 -0.2048 0.1020 0.1240 0.027 Uiso calc R 1 . .
    C C21 -0.1040(2) 0.08598(11) 0.21652(8) 0.0185(3) Uani d . 1 . .
_geom_special_details
;
All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
planes.
;
loop_
    _geom_bond_atom_site_label_1
    _geom_bond_atom_site_label_2
    _geom_bond_site_symmetry_2
    _geom_bond_distance
    _geom_bond_publ_flag
    Cl1 C19 . 1.7398(17) ?
    Cl2 C21 . 1.7400(16) ?
    Cl3 C12 . 1.7440(17) ?
    O1 C15 . 1.366(2) ?
    O1 C1 . 1.4577(18) ?
    O2 C15 . 1.2090(19) ?
    O3 C7 . 1.3375(18) ?
    O3 C8 . 1.4421(18) ?
    N1 C12 . 1.320(2) ?
    N1 C13 . 1.342(2) ?
    C1 C7 . 1.505(2) ?
    C1 C6 . 1.519(2) ?
    C1 C2 . 1.534(2) ?
    C2 C3 . 1.526(2) ?
    C2 H2A . 0.9700 ?
    C2 H2B . 0.9700 ?
    C3 C4 . 1.530(2) ?
    C3 H3A . 0.9700 ?
    C3 H3B . 0.9700 ?
    C4 C5 . 1.524(2) ?
    C4 H4A . 0.9700 ?
    C4 H4B . 0.9700 ?
    C5 C6 . 1.531(2) ?
    C5 H5A . 0.9700 ?
    C5 H5B . 0.9700 ?
    C6 H6A . 0.9700 ?
    C6 H6B . 0.9700 ?
    C7 C14 . 1.345(2) ?
    C8 C9 . 1.507(2) ?
    C8 H8A . 0.9700 ?
    C8 H8B . 0.9700 ?
    C9 C13 . 1.385(2) ?
    C9 C10 . 1.387(2) ?
    C10 C11 . 1.378(2) ?
    C10 H10 . 0.9300 ?
    C11 C12 . 1.384(2) ?
    C11 H11 . 0.9300 ?
    C13 H13 . 0.9300 ?
    C14 C15 . 1.474(2) ?
    C14 C16 . 1.480(2) ?
    C16 C21 . 1.398(2) ?
    C16 C17 . 1.400(2) ?
    C17 C18 . 1.385(2) ?
    C17 H17 . 0.9300 ?
    C18 C19 . 1.384(2) ?
    C18 H18 . 0.9300 ?
    C19 C20 . 1.382(2) ?
    C20 C21 . 1.380(2) ?
    C20 H20 . 0.9300 ?
loop_
    _geom_angle_atom_site_label_1
    _geom_angle_atom_site_label_2
    _geom_angle_atom_site_label_3
    _geom_angle_site_symmetry_1
    _geom_angle_site_symmetry_3
    _geom_angle
    _geom_angle_publ_flag
    C15 O1 C1 . . 109.69(12) ?
    C7 O3 C8 . . 120.36(13) ?
    C12 N1 C13 . . 116.43(15) ?
    O1 C1 C7 . . 102.52(12) ?
    O1 C1 C6 . . 109.58(12) ?
    C7 C1 C6 . . 112.12(13) ?
    O1 C1 C2 . . 108.54(12) ?
    C7 C1 C2 . . 111.66(12) ?
    C6 C1 C2 . . 111.93(14) ?
    C3 C2 C1 . . 111.83(13) ?
    C3 C2 H2A . . 109.2 ?
    C1 C2 H2A . . 109.2 ?
    C3 C2 H2B . . 109.2 ?
    C1 C2 H2B . . 109.2 ?
    H2A C2 H2B . . 107.9 ?
    C2 C3 C4 . . 110.44(14) ?
    C2 C3 H3A . . 109.6 ?
    C4 C3 H3A . . 109.6 ?
    C2 C3 H3B . . 109.6 ?
    C4 C3 H3B . . 109.6 ?
    H3A C3 H3B . . 108.1 ?
    C5 C4 C3 . . 111.65(14) ?
    C5 C4 H4A . . 109.3 ?
    C3 C4 H4A . . 109.3 ?
    C5 C4 H4B . . 109.3 ?
    C3 C4 H4B . . 109.3 ?
    H4A C4 H4B . . 108.0 ?
    C4 C5 C6 . . 111.10(14) ?
    C4 C5 H5A . . 109.4 ?
    C6 C5 H5A . . 109.4 ?
    C4 C5 H5B . . 109.4 ?
    C6 C5 H5B . . 109.4 ?
    H5A C5 H5B . . 108.0 ?
    C1 C6 C5 . . 113.06(13) ?
    C1 C6 H6A . . 109.0 ?
    C5 C6 H6A . . 109.0 ?
    C1 C6 H6B . . 109.0 ?
    C5 C6 H6B . . 109.0 ?
    H6A C6 H6B . . 107.8 ?
    O3 C7 C14 . . 135.67(15) ?
    O3 C7 C1 . . 112.59(13) ?
    C14 C7 C1 . . 111.73(13) ?
    O3 C8 C9 . . 113.22(12) ?
    O3 C8 H8A . . 108.9 ?
    C9 C8 H8A . . 108.9 ?
    O3 C8 H8B . . 108.9 ?
    C9 C8 H8B . . 108.9 ?
    H8A C8 H8B . . 107.7 ?
    C13 C9 C10 . . 117.49(15) ?
    C13 C9 C8 . . 121.71(15) ?
    C10 C9 C8 . . 120.77(15) ?
    C11 C10 C9 . . 119.95(16) ?
    C11 C10 H10 . . 120.0 ?
    C9 C10 H10 . . 120.0 ?
    C10 C11 C12 . . 117.11(16) ?
    C10 C11 H11 . . 121.4 ?
    C12 C11 H11 . . 121.4 ?
    N1 C12 C11 . . 125.13(16) ?
    N1 C12 Cl3 . . 115.93(13) ?
    C11 C12 Cl3 . . 118.94(13) ?
    N1 C13 C9 . . 123.89(15) ?
    N1 C13 H13 . . 118.1 ?
    C9 C13 H13 . . 118.1 ?
    C7 C14 C15 . . 105.99(14) ?
    C7 C14 C16 . . 133.52(14) ?
    C15 C14 C16 . . 120.44(14) ?
    O2 C15 O1 . . 121.42(14) ?
    O2 C15 C14 . . 128.58(15) ?
    O1 C15 C14 . . 109.99(13) ?
    C21 C16 C17 . . 116.66(15) ?
    C21 C16 C14 . . 121.05(14) ?
    C17 C16 C14 . . 122.28(14) ?
    C18 C17 C16 . . 121.58(15) ?
    C18 C17 H17 . . 119.2 ?
    C16 C17 H17 . . 119.2 ?
    C19 C18 C17 . . 119.35(15) ?
    C19 C18 H18 . . 120.3 ?
    C17 C18 H18 . . 120.3 ?
    C20 C19 C18 . . 121.13(16) ?
    C20 C19 Cl1 . . 119.24(13) ?
    C18 C19 Cl1 . . 119.63(13) ?
    C21 C20 C19 . . 118.36(15) ?
    C21 C20 H20 . . 120.8 ?
    C19 C20 H20 . . 120.8 ?
    C20 C21 C16 . . 122.90(14) ?
    C20 C21 Cl2 . . 117.74(12) ?
    C16 C21 Cl2 . . 119.32(12) ?
loop_
    _geom_torsion_atom_site_label_1
    _geom_torsion_atom_site_label_2
    _geom_torsion_atom_site_label_3
    _geom_torsion_atom_site_label_4
    _geom_torsion_site_symmetry_1
    _geom_torsion_site_symmetry_2
    _geom_torsion_site_symmetry_3
    _geom_torsion_site_symmetry_4
    _geom_torsion
    _geom_torsion_publ_flag
    C15 O1 C1 C7 . . . . -2.79(15) ?
    C15 O1 C1 C6 . . . . -122.03(13) ?
    C15 O1 C1 C2 . . . . 115.46(13) ?
    O1 C1 C2 C3 . . . . 68.12(17) ?
    C7 C1 C2 C3 . . . . -179.60(13) ?
    C6 C1 C2 C3 . . . . -52.96(18) ?
    C1 C2 C3 C4 . . . . 55.70(18) ?
    C2 C3 C4 C5 . . . . -57.18(19) ?
    C3 C4 C5 C6 . . . . 55.15(19) ?
    O1 C1 C6 C5 . . . . -69.25(17) ?
    C7 C1 C6 C5 . . . . 177.61(13) ?
    C2 C1 C6 C5 . . . . 51.22(18) ?
    C4 C5 C6 C1 . . . . -52.32(18) ?
    C8 O3 C7 C14 . . . . 0.0(3) ?
    C8 O3 C7 C1 . . . . -178.59(12) ?
    O1 C1 C7 O3 . . . . -178.43(12) ?
    C6 C1 C7 O3 . . . . -60.99(17) ?
    C2 C1 C7 O3 . . . . 65.55(16) ?
    O1 C1 C7 C14 . . . . 2.66(16) ?
    C6 C1 C7 C14 . . . . 120.10(15) ?
    C2 C1 C7 C14 . . . . -113.36(15) ?
    C7 O3 C8 C9 . . . . 69.36(18) ?
    O3 C8 C9 C13 . . . . 26.2(2) ?
    O3 C8 C9 C10 . . . . -155.88(14) ?
    C13 C9 C10 C11 . . . . 0.1(2) ?
    C8 C9 C10 C11 . . . . -177.88(16) ?
    C9 C10 C11 C12 . . . . -0.3(2) ?
    C13 N1 C12 C11 . . . . 0.2(2) ?
    C13 N1 C12 Cl3 . . . . -178.92(12) ?
    C10 C11 C12 N1 . . . . 0.2(3) ?
    C10 C11 C12 Cl3 . . . . 179.21(13) ?
    C12 N1 C13 C9 . . . . -0.3(2) ?
    C10 C9 C13 N1 . . . . 0.2(2) ?
    C8 C9 C13 N1 . . . . 178.20(15) ?
    O3 C7 C14 C15 . . . . 179.93(16) ?
    C1 C7 C14 C15 . . . . -1.50(17) ?
    O3 C7 C14 C16 . . . . -2.6(3) ?
    C1 C7 C14 C16 . . . . 175.99(15) ?
    C1 O1 C15 O2 . . . . -179.05(13) ?
    C1 O1 C15 C14 . . . . 2.09(16) ?
    C7 C14 C15 O2 . . . . -179.10(15) ?
    C16 C14 C15 O2 . . . . 3.0(2) ?
    C7 C14 C15 O1 . . . . -0.35(16) ?
    C16 C14 C15 O1 . . . . -178.24(13) ?
    C7 C14 C16 C21 . . . . -109.1(2) ?
    C15 C14 C16 C21 . . . . 68.14(19) ?
    C7 C14 C16 C17 . . . . 71.7(2) ?
    C15 C14 C16 C17 . . . . -111.08(17) ?
    C21 C16 C17 C18 . . . . 1.7(2) ?
    C14 C16 C17 C18 . . . . -179.07(15) ?
    C16 C17 C18 C19 . . . . -1.3(2) ?
    C17 C18 C19 C20 . . . . 0.1(3) ?
    C17 C18 C19 Cl1 . . . . 179.83(12) ?
    C18 C19 C20 C21 . . . . 0.7(2) ?
    Cl1 C19 C20 C21 . . . . -179.05(12) ?
    C19 C20 C21 C16 . . . . -0.3(2) ?
    C19 C20 C21 Cl2 . . . . 177.62(12) ?
    C17 C16 C21 C20 . . . . -0.9(2) ?
    C14 C16 C21 C20 . . . . 179.87(14) ?
    C17 C16 C21 Cl2 . . . . -178.75(12) ?
    C14 C16 C21 Cl2 . . . . 2.0(2) ?
loop_
    _geom_hbond_atom_site_label_D
    _geom_hbond_atom_site_label_H
    _geom_hbond_atom_site_label_A
    _geom_hbond_site_symmetry_A
    _geom_hbond_distance_DH
    _geom_hbond_distance_HA
    _geom_hbond_distance_DA
    _geom_hbond_angle_DHA
    C13 H13 O3 . 0.93 2.53 2.864(2) 102
data_global
_journal_date_recd_electronic     2009-03-03
_journal_date_accepted     2009-03-19
_journal_name_full     'Acta Crystallographica, Section E'
_journal_year     2009
_journal_volume     65
_journal_issue      4
_journal_page_first     o846
_journal_page_last     o846
_journal_paper_category     QO
_journal_coeditor_code     BX2196
_publ_contact_author_name     'Liang-zhong Xu'
_publ_contact_author_address
;
College of Chemistry and Molecular Engineering,
Qingdao University of Science and Technology,
Qingdao 266042,
People's Republic of China
;
_publ_contact_author_email     qknhs@yahoo.com.cn
_publ_contact_author_fax     '86-532-84023177'
_publ_contact_author_phone     '86-532-84023177'
_publ_section_title
;\
4-[(6-Chloro-2-pyridyl)methoxy]-3-(2,4-dichlorophenyl)-1-oxaspiro[4.5]dec-3-en-\
2-one
;
loop_
    _publ_author_name
    _publ_author_address
    'Liang-zhong Xu'
;
College of Chemistry and Molecular Engineering,
Qingdao University of Science and Technology,
Qingdao 266042,
People's Republic of China
;
    'Jin Huang'
;
College of Chemistry and Molecular Engineering,
Qingdao University of Science and Technology,
Qingdao 266042,
People's Republic of China
;
    'Qun-qun Su'
;
College of Chemistry and Molecular Engineering,
Qingdao University of Science and Technology,
Qingdao 266042,
People's Republic of China
;
    'Wei Guo'
;
College of Chemistry and Molecular Engineering,
Qingdao University of Science and Technology,
Qingdao 266042,
People's Republic of China
;
_publ_section_synopsis     .
