2,7-Bis(prop-2-yn-1-yloxy)naphthalene
Xue, Wei-jian; Lu, Hui; Pang, Tao; Acta Crystallographica Section E 66 (2010) o1610–; doi:10.1107/S1600536810020982

data_2226618
_publ_section_title
;
 2,7-Bis(prop-2-yn-1-yloxy)naphthalene
;
_journal_coeditor_code           OM2339
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1610
_journal_paper_doi               10.1107/S1600536810020982
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C16 H12 O2'
_chemical_formula_moiety         'C16 H12 O2'
_chemical_formula_sum            'C16 H12 O2'
_chemical_formula_weight         236.26
_chemical_name_systematic
;
2,7-Bis(prop-2-yn-1-yloxy)naphthalene
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.3742(12)
_cell_length_b                   8.1364(9)
_cell_length_c                   26.880(3)
_cell_measurement_reflns_used    1273
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      22.17
_cell_measurement_theta_min      3.03
_cell_volume                     2487.6(5)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1999)'
_computing_data_reduction        'SAINT (Bruker, 1999)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0699
_diffrn_reflns_av_sigmaI/netI    0.0581
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            8492
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.35
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.262
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.168
_refine_diff_density_min         -0.226
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2812
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.1017
_refine_ls_R_factor_gt           0.0627
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0571P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1283
_refine_ls_wR_factor_ref         0.1458
_reflns_number_gt                1807
_reflns_number_total             2812
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            om2339.cif
_cod_data_source_block           I
_cod_database_code               2226618
_cod_database_fobs_code          2226618