Exploiting the use of hydrogen bonding and metal-coordination in the self-assembly of photoreactive multicomponent networks.
Hill, Yennifer; Briceño, Alexander; Chemical communications (Cambridge, England)  (2007) 3930–3932; doi:10.1039/b706936g

data_7102156
_publ_section_title
;
 Exploiting the use of hydrogen bonding and metal-coordination in the
 self-assembly of photoreactive multicomponent networks.
;
_journal_issue                   38
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3930
_journal_page_last               3932
_journal_paper_doi               10.1039/b706936g
_journal_year                    2007
_chemical_compound_source        Synthesis
_chemical_formula_moiety         'C24 H20 N4'
_chemical_formula_sum            'C24 H20 N4'
_chemical_formula_weight         364.44
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 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                 118.525(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.307(3)
_cell_length_b                   5.7271(7)
_cell_length_c                   24.026(3)
_cell_measurement_reflns_used    1216
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      27.80
_cell_measurement_theta_min      2.0
_cell_volume                     1971.5(5)
_computing_cell_refinement       'CrystalClear (Rigaku/MSC Inc., 2005)'
_computing_data_collection       'CrystalClear (Rigaku/MSC Inc., 2005)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC Inc., 2005)'
_computing_molecular_graphics
;
SHELXLTL-NT V5.1 (Bruker AXS, 1998) and DIAMOND
(Brandenburg, 1998)
;
_computing_publication_material
;
SHELXLTL-NT V5.1 (Bruker AXS, 1998) and PLATON (Spek, 2003).
;
_computing_structure_refinement  'SHELXLTL-NT V5.1 (Bruker AXS, 1998)'
_computing_structure_solution    'SHELXLTL-NT V5.1 (Bruker AXS, 1998)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.810
_diffrn_measurement_device
;
Mercury (2x2 bin mode)
;
_diffrn_measurement_device_type  'Rigaku AFC7S Mercury'
_diffrn_measurement_method       \w
_diffrn_radiation_detector       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0726
_diffrn_reflns_av_sigmaI/netI    0.0491
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            21651
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.75
_diffrn_reflns_theta_min         1.42
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.991
_exptl_absorpt_correction_T_min  0.970
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            'Pale yellow'
_exptl_crystal_density_diffrn    1.228
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.142
_refine_diff_density_min         -0.201
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.138
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3777
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.138
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.0692
_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^)+(0.0636P)^2^+0.3082P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1514
_refine_ls_wR_factor_ref         0.1733
_reflns_number_gt                2427
_reflns_number_total             3777
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b706936g.txt
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_Hall     -P2yc
_cod_original_sg_symbol_H-M      P2/c
_cod_database_code               7102156