Equivalence of Ethylene and Azo-Bridges in the Modular Design of Molecular Complexes: Role of Weak Interactions
Ravat, Prince; SeethaLekshmi, Sunil; Biswas, Sharmita Nandy; Nandy, Purnendu; Varughese, Sunil; Crystal Growth & Design 15 (2015) 2389–; doi:10.1021/acs.cgd.5b00183

data_4513111
_publ_section_title
;
 Equivalence of Ethylene and Azo-Bridges in the Modular Design of
 Molecular Complexes: Role of Weak Interactions
;
_journal_issue                   5
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2389
_journal_paper_doi               10.1021/acs.cgd.5b00183
_journal_volume                  15
_journal_year                    2015
_chemical_formula_moiety         'C10 H8 N4, 2(C7 H6 O3)'
_chemical_formula_sum            'C24 H20 N4 O6'
_chemical_formula_weight         460.44
_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                 103.444(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.6756(14)
_cell_length_b                   6.7322(11)
_cell_length_c                   19.923(3)
_cell_measurement_temperature    293(2)
_cell_volume                     1131.7(3)
_computing_cell_refinement       SMART
_computing_data_collection       SMART
_computing_data_reduction        SAINTPLUS
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX CCD-Area detector'
_diffrn_measurement_method       SMART
_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  0.0445
_diffrn_reflns_av_sigmaI/netI    0.0316
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            5379
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.351
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.24
_refine_diff_density_max         0.595
_refine_diff_density_min         -0.256
_refine_diff_density_rms         0.076
_refine_ls_extinction_coef       0.020(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.318
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         1981
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.318
_refine_ls_R_factor_all          0.0841
_refine_ls_R_factor_gt           0.0723
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1879
_refine_ls_wR_factor_ref         0.1981
_reflns_number_gt                1516
_reflns_number_total             1981
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg5b00183_si_006.cif
_cod_data_source_block           shelxl
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4513111