(4-Ethynylphenyl)methoxymethanimine
Archan Dey; Rahul Banerjee; Acta Crystallographica Section E 60 (2004) o2117–o2118; doi:10.1107/S1600536804024808

data_2204491
_publ_section_title
;
 (4-Ethynylphenyl)methoxymethanimine
;
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2117
_journal_page_last               o2118
_journal_paper_doi               10.1107/S1600536804024808
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C10 H9 N O'
_chemical_formula_moiety         'C10 H9 N O'
_chemical_formula_sum            'C10 H9 N O'
_chemical_formula_weight         159.18
_chemical_melting_point          373
_chemical_name_common            (4-Ethynylphenyl)methoxymethanimine
_chemical_name_systematic
;
(4-Ethynylphenyl)methoxymethanimine
;
_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_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                 94.512(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.9367(5)
_cell_length_b                   20.461(3)
_cell_length_c                   10.0799(13)
_cell_measurement_reflns_used    3237
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.98
_cell_measurement_theta_min      2.26
_cell_volume                     809.41(19)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'SHELXTL (Bruker, 2001)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0279
_diffrn_reflns_av_sigmaI/netI    0.0180
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            9258
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.9915
_exptl_absorpt_correction_T_min  0.9765
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Siemens, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             336
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.362
_refine_diff_density_min         -0.203
_refine_ls_extinction_coef       0.010(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXTL
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     114
_refine_ls_number_reflns         1586
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0498
_refine_ls_R_factor_gt           0.0426
_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^)+(0.0482P)^2^+0.4532P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1072
_refine_ls_wR_factor_ref         0.1116
_reflns_number_gt                1364
_reflns_number_total             1586
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fl6119.cif
_cod_data_source_block           I
_cod_original_cell_volume        809.40(18)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2204491
_cod_database_fobs_code          2204491