Photoreactivity of polymorphs of a ladder polymer with criss-cross and parallel orientations of C[double bond, length as m-dash]C bonds
Anjana Chanthapally; Wei Ting Oh; Jagadese J. Vittal; Chem.Commun. 50 (2014) 451–; doi:10.1039/c3cc47816e

data_7110216
_publ_section_title
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 Photoreactivity of polymorphs of a ladder polymer with criss-cross and
 parallel orientations of C[double bond, length as m-dash]C bonds
;
_journal_name_full               Chem.Commun.
_journal_page_first              451
_journal_paper_doi               10.1039/c3cc47816e
_journal_volume                  50
_journal_year                    2014
_chemical_formula_sum            'C28 H24 N2 O4 Zn'
_chemical_formula_weight         517.86
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 102.617(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.6758(14)
_cell_length_b                   13.6884(12)
_cell_length_c                   22.957(2)
_cell_measurement_reflns_used    2258
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.04
_cell_measurement_theta_min      2.31
_cell_volume                     4807.1(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0632
_diffrn_reflns_av_sigmaI/netI    0.0732
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            16582
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    1.059
_exptl_absorpt_correction_T_max  0.9200
_exptl_absorpt_correction_T_min  0.6587
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             2144
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.668
_refine_diff_density_min         -0.535
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         5519
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0680
_refine_ls_R_factor_gt           0.0506
_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^)+(0.0643P)^2^+2.4280P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1200
_refine_ls_wR_factor_ref         0.1348
_reflns_number_gt                4360
_reflns_number_total             5519
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc47816e.txt
_cod_data_source_block           compound2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7110216