Thermal Reaction of a Columnar Assembled Diacetylene Macrocycle
Yuewen Xu; Mark D. Smith; Michael F. Geer; Perry J. Pellechia; Julius C. Brown; Arief C. Wibowo; Linda S. Shimizu; Journal of the American Chemical Society 132 (2010) 5334–5335; doi:10.1021/ja9107066

data_4102292
_publ_section_title
;
 Thermal Reaction of a Columnar Assembled Diacetylene Macrocycle
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              5334
_journal_page_last               5335
_journal_paper_doi               10.1021/ja9107066
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C28 H20 N4 O4, 2(H2 O)'
_chemical_formula_sum            'C28 H24 N4 O6'
_chemical_formula_weight         512.51
_chemical_name_systematic
; 
 ? 
;
_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                 96.9050(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.9860(2)
_cell_length_b                   14.6944(7)
_cell_length_c                   16.8680(8)
_cell_measurement_reflns_used    6132
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.261
_cell_measurement_theta_min      2.432
_cell_volume                     1226.89(10)
_computing_cell_refinement       'SAINT-Plus Version 6.45 (Bruker, 2001)'
_computing_data_collection       'SMART Version 5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT-Plus Version 6.45 (Bruker, 2001)'
_computing_molecular_graphics    various
_computing_publication_material  'SHELXTL Version 6.14 (Bruker, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       '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  0.0343
_diffrn_reflns_av_sigmaI/netI    0.0205
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            17823
_diffrn_reflns_theta_full        26.42
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8727
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS Version 2.05 (Bruker, 2001)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.387
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.66
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.297
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2522
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0418
_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^)+(0.0561P)^2^+0.4811P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1047
_refine_ls_wR_factor_ref         0.1102
_reflns_number_gt                2170
_reflns_number_total             2522
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9107066_si_002.cif
_cod_data_source_block           lss131s
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4102292