Geometry and bond-length alternation in nonlinear optical materials. III. Structural parameters of two chromophores containing aromatizable donors
Gainsford, Graeme J.; Bhuiyan, M. Delower H.; Kay, Andrew J.; Acta Crystallographica Section C 64 (2008) o616–o619; doi:10.1107/S0108270108033404

data_2016828
_publ_section_title
;
 Geometry and bond-length alternation in nonlinear optical materials.
 III. Structural parameters of two chromophores containing aromatizable
 donors
;
_journal_coeditor_code           FG3060
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o616
_journal_page_last               o619
_journal_paper_doi               10.1107/S0108270108033404
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C34 H38 N4 O'
_chemical_formula_moiety         'C34 H38 N4 O'
_chemical_formula_sum            'C34 H38 N4 O'
_chemical_formula_weight         518.68
_chemical_name_systematic
;
2-{3-cyano-4-[5-(1-decyl-1,4-dihydroquinolin-4-ylidene)penta-1,3-dienyl]-5,5-
dimethyl-2,5-dihydrofuran-2-ylidene}malononitrile
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 92.211(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.5261(7)
_cell_length_b                   9.8849(5)
_cell_length_c                   24.3711(13)
_cell_measurement_reflns_used    3141
_cell_measurement_temperature    97(2)
_cell_measurement_theta_max      27.93
_cell_measurement_theta_min      3.25
_cell_volume                     3015.4(3)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 2005)'
_computing_molecular_graphics
;
ORTEP-3 in WinGX (Farrugia, 1997) and Mercury (Macrae <i>et al.</i>,
2006)
;
_computing_publication_material
;
SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2003)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      97(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker Nonius APEXII 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  0.0826
_diffrn_reflns_av_sigmaI/netI    0.0992
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            18727
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.15
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.143
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1112
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.386
_refine_diff_density_min         -0.343
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.951
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         5267
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.1147
_refine_ls_R_factor_gt           0.0544
_refine_ls_shift/su_max          0.009
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0715P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1265
_refine_ls_wR_factor_ref         0.1476
_reflns_number_gt                2887
_reflns_number_total             5267
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fg3060.cif
_cod_data_source_block           II
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2016828
_cod_database_fobs_code          2016828