#------------------------------------------------------------------------------
#$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $
#$Revision: 966 $
#$URL: file:///home/coder/svn-repositories/cod/cif/2/2102074.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2102074
_space_group_IT_number           4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_[local]_cod_cif_authors_sg_H-M  'P 21'
_[local]_cod_cif_authors_sg_Hall 'P 2y1'
loop_
_publ_author_name
'Anthony, Addlagatta'
'Jask\'olski, Mariusz'
'Nangia, Ashwini'
_publ_section_title
;
 Crystal chemistry of some synthetic 2-oxa-steroids: conformation,
 packing motifs and isostructurality
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              512
_journal_page_last               525
_journal_volume                  56
_journal_year                    2000
_chemical_formula_moiety         'C18 H24 O3'
_chemical_formula_sum            'C18 H24 O3'
_chemical_formula_weight         288.37
_chemical_name_common            2-Oxa-4-androsten-3,17-dione
_chemical_name_systematic
;
2-Oxa-4-androsten-3,17-dione
;
_symmetry_cell_setting           monoclinic
_audit_creation_method           SHELX-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.079(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.2321(3)
_cell_length_b                   9.9264(6)
_cell_length_c                   12.8120(8)
_cell_measurement_reflns_used    62
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      51
_cell_measurement_theta_min      19
_cell_volume                     786.54(8)
_computing_cell_refinement       'Kuma KM-4'
_computing_data_collection       'Kuma KM-4'
_computing_data_reduction        'Kuma KM-4'
_computing_molecular_graphics    'ORTEP and PLUTO'
_computing_publication_material  SHELX-97
_computing_structure_refinement  'SHELX-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELX-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  KM-4
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  .0137
_diffrn_reflns_av_sigmaI/netI    .0125
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            1685
_diffrn_reflns_theta_full        70.09
_diffrn_reflns_theta_max         70.09
_diffrn_reflns_theta_min         3.48
_diffrn_standards_decay_%        'less than 2'
_diffrn_standards_interval_count 100
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    .647
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.218
_exptl_crystal_density_meas      'not measured'
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cubic
_exptl_crystal_F_000             312
_exptl_crystal_size_max          .45
_exptl_crystal_size_mid          .30
_exptl_crystal_size_min          .20
_refine_diff_density_max         .098
_refine_diff_density_min         -.134
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   .1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         1597
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          .0412
_refine_ls_R_factor_gt           .0342
_refine_ls_shift/su_max          .011
_refine_ls_shift/su_mean         .004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_scheme
'calc w=1/[\s^2^(Fo^2^)+(0.0527P)^2^+0.0545P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_wR_factor_ref         .0919
_reflns_number_gt                1434
_reflns_number_total             1597
_reflns_threshold_expression     >2sigma(I)
_[local]_cod_data_source_file    ka0049.cif
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z'
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C .0181 .0091 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H .0000 .0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O .0492 .0322 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_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_type_symbol
C1 1.1263(4) .2306(2) .22518(19) .0696(6) Uani d . 1 C
H11 1.0335 .2052 .1618 .082 Uiso calc R 1 H
H12 1.2515 .2762 .2039 .096 Uiso calc R 1 H
O2 1.1971(3) .11026(19) .28226(16) .0858(5) Uani d . 1 O
C3 1.3028(4) .1287(3) .3798(2) .0839(8) Uani d . 1 C
O3 1.3906(4) .0318(3) .4234(2) .1192(9) Uani d . 1 O
C4 1.2911(4) .2600(3) .42700(19) .0754(7) Uani d . 1 C
H4 1.3897 .2809 .4853 .096 Uiso calc R 1 H
C5 1.1458(3) .3527(3) .39113(16) .0624(5) Uani d . 1 C
C6 1.1056(4) .4757(3) .45224(15) .0747(7) Uani d . 1 C
H61 1.2257 .4889 .5070 .094 Uiso calc R 1 H
H62 .9762 .4624 .4860 .077 Uiso calc R 1 H
C7 1.0780(4) .6012(3) .38444(15) .0686(6) Uani d . 1 C
H71 1.2151 .6241 .3605 .089 Uiso calc R 1 H
H72 1.0351 .6759 .4261 .109 Uiso calc R 1 H
C8 .9081(3) .5802(2) .28952(13) .0523(4) Uani d . 1 C
H8 .7689 .5599 .3142 .064 Uiso calc R 1 H
C9 .9741(3) .4610(2) .22410(13) .0486(4) Uani d . 1 C
H9 1.1171 .4839 .2049 .052 Uiso calc R 1 H
C10 1.0048(3) .3277(2) .28776(15) .0563(5) Uani d . 1 C
C11 .8260(4) .4432(2) .11926(16) .0616(5) Uani d . 1 C
H111 .8866 .3744 .0778 .098 Uiso calc R 1 H
H112 .6851 .4123 .1339 .063 Uiso calc R 1 H
C12 .7983(4) .5734(2) .05511(14) .0603(5) Uani d . 1 C
H121 .9353 .5984 .0319 .069 Uiso calc R 1 H
H122 .6943 .5592 -.0067 .085 Uiso calc R 1 H
C13 .7212(3) .6853(2) .12066(15) .0527(5) Uani d . 1 C
C14 .8830(3) .7043(2) .21968(14) .0531(4) Uani d . 1 C
H14 1.0239 .7179 .1948 .062 Uiso calc R 1 H
C15 .8219(5) .8404(3) .26368(19) .0817(7) Uani d . 1 C
H151 .9420 .8791 .3092 .091 Uiso calc R 1 H
H152 .6984 .8320 .3025 .073 Uiso calc R 1 H
C16 .7662(6) .9251(3) .1642(2) .0938(9) Uani d . 1 C
H161 .6415 .9817 .1705 .169 Uiso calc R 1 H
H162 .8872 .9823 .1524 .122 Uiso calc R 1 H
C17 .7175(3) .8266(2) .07520(17) .0637(5) Uani d . 1 C
O17 .6860(3) .8564(2) -.01645(13) .0850(5) Uani d . 1 O
C18 .4875(3) .6608(3) .1442(2) .0760(7) Uani d . 1 C
H181 .4822 .5797 .1847 .102 Uiso calc R 1 H
H182 .3937 .6520 .0793 .099 Uiso calc R 1 H
H183 .4410 .7356 .1834 .092 Uiso calc R 1 H
C19 .7893(3) .2667(3) .3118(2) .0752(6) Uani d . 1 C
H191 .8165 .1831 .3487 .080 Uiso calc R 1 H
H192 .6977 .2508 .2471 .104 Uiso calc R 1 H
H193 .7193 .3282 .3545 .063 Uiso calc R 1 H
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
C1 .0730(13) .0606(14) .0757(13) .0066(11) .0110(10) .0072(11)
O2 .0834(11) .0667(11) .1062(13) .0127(9) .0075(10) .0180(10)
C3 .0568(12) .095(2) .1014(19) .0119(13) .0153(12) .0369(17)
O3 .0904(14) .1103(18) .155(2) .0298(13) .0053(14) .0537(17)
C4 .0576(11) .0976(19) .0712(14) .0064(12) .0090(10) .0258(14)
C5 .0543(10) .0811(15) .0530(10) -.0029(11) .0116(8) .0166(11)
C6 .0819(14) .100(2) .0411(9) .0057(14) .0020(9) .0047(11)
C7 .0782(14) .0805(15) .0448(10) -.0049(13) -.0012(9) -.0077(11)
C8 .0553(10) .0615(12) .0408(8) -.0068(8) .0083(7) -.0014(8)
C9 .0465(8) .0562(11) .0433(8) -.0067(8) .0062(7) .0018(8)
C10 .0502(9) .0601(12) .0595(11) -.0037(9) .0103(8) .0103(10)
C11 .0697(12) .0580(12) .0535(10) -.0012(10) -.0064(9) -.0089(9)
C12 .0679(12) .0682(13) .0423(8) .0057(10) -.0037(8) -.0058(9)
C13 .0517(10) .0570(12) .0492(9) -.0029(8) .0051(8) -.0006(8)
C14 .0583(9) .0553(10) .0456(9) -.0075(9) .0066(7) -.0039(8)
C15 .114(2) .0639(14) .0647(14) .0024(15) -.0001(13) -.0144(12)
C16 .134(3) .0586(15) .0852(18) -.0001(16) -.0031(17) -.0017(13)
C17 .0624(11) .0655(13) .0630(13) .0036(10) .0065(9) .0064(11)
O17 .1050(12) .0829(12) .0662(9) .0225(11) .0070(8) .0178(9)
C18 .0518(10) .0865(17) .0903(15) -.0026(11) .0115(10) .0031(14)
C19 .0569(11) .0755(14) .0938(16) -.0102(11) .0120(10) .0222(14)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
C1 O2 1.441(3)
C1 C10 1.515(3)
C1 H11 .9700
C1 H12 .9700
O2 C3 1.351(3)
C3 O3 1.209(3)
C3 C4 1.442(4)
C4 C5 1.333(4)
C4 H4 .9300
C5 C6 1.488(4)
C5 C10 1.517(3)
C6 C7 1.516(4)
C6 H61 .9700
C6 H62 .9700
C7 C8 1.525(3)
C7 H71 .9700
C7 H72 .9700
C8 C14 1.520(3)
C8 C9 1.535(3)
C8 H8 .9800
C9 C11 1.543(2)
C9 C10 1.554(3)
C9 H9 .9800
C10 C19 1.538(3)
C11 C12 1.530(3)
C11 H111 .9700
C11 H112 .9700
C12 C13 1.506(3)
C12 H121 .9700
C12 H122 .9700
C13 C17 1.518(3)
C13 C14 1.532(2)
C13 C18 1.543(3)
C14 C15 1.530(3)
C14 H14 .9800
C15 C16 1.531(4)
C15 H151 .9700
C15 H152 .9700
C16 C17 1.504(4)
C16 H161 .9700
C16 H162 .9700
C17 O17 1.203(3)
C18 H181 .9600
C18 H182 .9600
C18 H183 .9600
C19 H191 .9600
C19 H192 .9600
C19 H193 .9600
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O2 C1 C10 113.61(18)
O2 C1 H11 108.8
C10 C1 H11 108.8
O2 C1 H12 108.8
C10 C1 H12 108.8
H11 C1 H12 107.7
C3 O2 C1 116.2(2)
O3 C3 O2 117.5(3)
O3 C3 C4 124.6(3)
O2 C3 C4 117.8(2)
C5 C4 C3 123.1(2)
C5 C4 H4 118.4
C3 C4 H4 118.4
C4 C5 C6 122.5(2)
C4 C5 C10 119.0(2)
C6 C5 C10 118.45(19)
C5 C6 C7 112.79(16)
C5 C6 H61 109.0
C7 C6 H61 109.0
C5 C6 H62 109.0
C7 C6 H62 109.0
H61 C6 H62 107.8
C6 C7 C8 111.3(2)
C6 C7 H71 109.4
C8 C7 H71 109.4
C6 C7 H72 109.4
C8 C7 H72 109.4
H71 C7 H72 108.0
C14 C8 C7 111.67(18)
C14 C8 C9 108.57(14)
C7 C8 C9 109.55(18)
C14 C8 H8 109.0
C7 C8 H8 109.0
C9 C8 H8 109.0
C8 C9 C11 113.07(16)
C8 C9 C10 113.18(14)
C11 C9 C10 112.40(16)
C8 C9 H9 105.8
C11 C9 H9 105.8
C10 C9 H9 105.8
C1 C10 C5 107.02(17)
C1 C10 C19 111.2(2)
C5 C10 C19 108.43(16)
C1 C10 C9 107.54(15)
C5 C10 C9 109.84(17)
C19 C10 C9 112.70(17)
C12 C11 C9 112.75(17)
C12 C11 H111 109.0
C9 C11 H111 109.0
C12 C11 H112 109.0
C9 C11 H112 109.0
H111 C11 H112 107.8
C13 C12 C11 110.23(16)
C13 C12 H121 109.6
C11 C12 H121 109.6
C13 C12 H122 109.6
C11 C12 H122 109.6
H121 C12 H122 108.1
C12 C13 C17 117.27(17)
C12 C13 C14 109.27(17)
C17 C13 C14 100.43(17)
C12 C13 C18 111.52(19)
C17 C13 C18 104.50(19)
C14 C13 C18 113.48(17)
C8 C14 C15 120.75(16)
C8 C14 C13 113.39(17)
C15 C14 C13 104.22(18)
C8 C14 H14 105.8
C15 C14 H14 105.8
C13 C14 H14 105.8
C14 C15 C16 102.67(19)
C14 C15 H151 111.2
C16 C15 H151 111.2
C14 C15 H152 111.2
C16 C15 H152 111.2
H151 C15 H152 109.1
C17 C16 C15 106.1(2)
C17 C16 H161 110.5
C15 C16 H161 110.5
C17 C16 H162 110.5
C15 C16 H162 110.5
H161 C16 H162 108.7
O17 C17 C16 125.0(2)
O17 C17 C13 126.5(2)
C16 C17 C13 108.53(18)
C13 C18 H181 109.5
C13 C18 H182 109.5
H181 C18 H182 109.5
C13 C18 H183 109.5
H181 C18 H183 109.5
H182 C18 H183 109.5
C10 C19 H191 109.5
C10 C19 H192 109.5
H191 C19 H192 109.5
C10 C19 H193 109.5
H191 C19 H193 109.5
H192 C19 H193 109.5
_cod_database_code 2102074