Synthesis and structure of strained polycyclic cyclobutane-containing derivatives
Ianelli, S.; Nardelli, M.; Belletti, D.; Jamart-Grégoire, B.; Brosse, N.; Caubère, P.; Acta Crystallographica Section C 49 (1993) 1388–1392; doi:10.1107/S0108270193000319

data_2001550
_publ_section_title
;
 Synthesis and structure of strained polycyclic cyclobutane-containing
 derivatives
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1388
_journal_page_last               1392
_journal_paper_doi               10.1107/S0108270193000319
_journal_volume                  49
_journal_year                    1993
_chemical_formula_analytical     'C16 H24 O3'
_chemical_formula_sum            'C16 H24 O3'
_chemical_formula_weight         264.36
_chemical_name_systematic
;
13-spiro-2'-[1,3]dioxolanetricyclo[6.5.0.0^2,7^]tridec-6-ene
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_type_scat_source
'IntTabIV Tables 2.2A, 2.3.1 (O, C) and 2.2C (H)'
_cell_angle_alpha                90
_cell_angle_beta                 91.790(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3940(10)
_cell_length_b                   14.260(2)
_cell_length_c                   12.0070(10)
_cell_measurement_reflns_used    30
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      39
_cell_measurement_theta_min      21
_cell_volume                     1436.5(3)
_computing_cell_refinement       LQPARM
_computing_molecular_graphics    ORTEP
_computing_publication_material  PARST
_computing_structure_refinement  'SHELX76 and SHELXL92'
_computing_structure_solution    SHELXS86
_diffrn_ambient_temperature      273(2)
_diffrn_measurement_device       'Siemens-AED diffractometer'
_diffrn_measurement_method       '\q-2\q scan'
_diffrn_radiation_monochromator  'Ni filter'
_diffrn_radiation_source         'standard Cu anode'
_diffrn_radiation_type           'Cu K\a~1~'
_diffrn_radiation_wavelength     1.5405620
_diffrn_reflns_av_R_equivalents  0.0055
_diffrn_reflns_av_sigmaI/netI    0.0441
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            2924
_diffrn_reflns_reduction_process
;
Standard. Lp correction.
;
_diffrn_reflns_theta_max         70.54
_diffrn_reflns_theta_min         4.82
_diffrn_standards_decay_%        'within statistical fluctuation'
_diffrn_standards_interval_count 50
_diffrn_standards_number         1
_exptl_absorpt_coefficient_mu    0.622
_exptl_absorpt_correction_type   'not applied'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.22
_exptl_crystal_description
;
small prisms
;
_exptl_crystal_F_000             576.0
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.36
_refine_diff_density_max         0.267
_refine_diff_density_min         -0.164
_refine_ls_extinction_coef       0.0008(6)
_refine_ls_extinction_method
' F~c~^*^ = kF~c~[1+0.001F~c~^2^l^3^/sin(2q)]^-1/4^'
_refine_ls_goodness_of_fit_all   0.883
_refine_ls_goodness_of_fit_obs   1.064
_refine_ls_hydrogen_treatment    refU
_refine_ls_matrix_type           full
_refine_ls_number_parameters     177
_refine_ls_number_reflns         2715
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.099
_refine_ls_restrained_S_obs      1.064
_refine_ls_R_factor_all          0.1092
_refine_ls_R_factor_obs          0.0603
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_scheme
; calc w = 1/[\s^2^(F~o~^2^)+(0.1144P)^2^+0.0000P]
where P = (F~o~^2^+2F~c~^2^)/3
;
_refine_ls_wR_factor_all         0.2305
_refine_ls_wR_factor_obs         0.1635
_reflns_number_observed          1476
_reflns_number_total             2739
_reflns_observed_criterion       I>2\s(I)
_cod_data_source_file            ha1032.cif
_cod_data_source_block           5
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2001550