Weak Interactions Dominating the Supramolecular Self-Assembly in a Salt: A Designed Single-Crystal-to-Single-Crystal Topochemical Polymerization of a Terminal Aryldiacetylene
Zhong Li; Frank W. Fowler; Joseph W. Lauher; Journal of the American Chemical Society 131 (2009) 634–643; doi:10.1021/ja806663h

data_4103761
_publ_section_title
;
 Weak Interactions Dominating the Supramolecular Self-Assembly in a Salt:
 A Designed Single-Crystal-to-Single-Crystal Topochemical Polymerization
 of a Terminal Aryldiacetylene
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              634
_journal_page_last               643
_journal_paper_doi               10.1021/ja806663h
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C20 H26 N4 O6'
_chemical_formula_weight         418.4
_chemical_name_common            (benzylNH3)2og
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                88.508(5)
_cell_angle_beta                 76.911(4)
_cell_angle_gamma                85.008(4)
_cell_formula_units_Z            1
_cell_length_a                   4.9193(9)
_cell_length_b                   10.2941(19)
_cell_length_c                   10.765(2)
_cell_measurement_temperature    273(2)
_cell_volume                     528.95(17)
_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      273(2)
_diffrn_measured_fraction_theta_full 0.856
_diffrn_measured_fraction_theta_max 0.856
_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  0.0352
_diffrn_reflns_av_sigmaI/netI    0.0333
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            3258
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             222
_exptl_crystal_size_max          .5
_exptl_crystal_size_mid          .2
_exptl_crystal_size_min          .2
_refine_diff_density_max         0.439
_refine_diff_density_min         -0.349
_refine_diff_density_rms         0.089
_refine_ls_extinction_coef       0.15(4)
_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   1.149
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     138
_refine_ls_number_reflns         2264
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.149
_refine_ls_R_factor_all          0.0956
_refine_ls_R_factor_gt           0.0847
_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^)+(0.1742P)^2^+0.2125P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2172
_refine_ls_wR_factor_ref         0.2383
_reflns_number_gt                1758
_reflns_number_total             2264
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja806663h_si_008.cif
_cod_data_source_block           benzylammonium
_cod_original_cell_volume        528.94(18)
_cod_database_code               4103761