Diethyl 2-{[(4-methoxy-3-pyridyl)amino]methylidene}malonate
Zhang, Zhi-Fang; Acta Crystallographica Section E 67 (2011) o1946–; doi:10.1107/S1600536811026353

data_2231052
_publ_section_title
;
 Diethyl 2-{[(4-methoxy-3-pyridyl)amino]methylidene}malonate
;
_journal_coeditor_code           CV5129
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1946
_journal_paper_doi               10.1107/S1600536811026353
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C14 H18 N2 O5'
_chemical_formula_moiety         'C14 H18 N2 O5'
_chemical_formula_sum            'C14 H18 N2 O5'
_chemical_formula_weight         294.30
_chemical_name_systematic
;
Diethyl 2-{[(4-methoxy-3-pyridyl)amino]methylidene}malonate
;
_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                 94.08(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.012(4)
_cell_length_b                   8.6620(17)
_cell_length_c                   9.1600(18)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      13
_cell_measurement_theta_min      10
_cell_volume                     1504.7(5)
_computing_cell_refinement       'CAD-4 Software (Enraf--Nonius, 1985)'
_computing_data_collection       'CAD-4 Software (Enraf--Nonius, 1985)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXS97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_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  0.0338
_diffrn_reflns_av_sigmaI/netI    0.0499
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2843
_diffrn_reflns_theta_full        25.36
_diffrn_reflns_theta_max         25.36
_diffrn_reflns_theta_min         1.07
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9901
_exptl_absorpt_correction_T_min  0.9708
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>, 1968)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
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_refine_diff_density_max         0.162
_refine_diff_density_min         -0.143
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2758
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.0587
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0560P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1222
_refine_ls_wR_factor_ref         0.1423
_reflns_number_gt                1452
_reflns_number_total             2758
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            cv5129.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2231052
_cod_database_fobs_code          2231052