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_4103755
_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            'C8 H22 N4 O8'
_chemical_formula_weight         302.30
_chemical_name_common            '(methylNH3)2og.2H2O '
_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                 97.758(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.9089(16)
_cell_length_b                   7.6850(9)
_cell_length_c                   14.2279(16)
_cell_measurement_temperature    273(2)
_cell_volume                     1506.9(3)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0288
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6436
_diffrn_reflns_theta_full        23.28
_diffrn_reflns_theta_max         23.28
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    0.118
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.332
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             648
_exptl_crystal_size_max          .6
_exptl_crystal_size_mid          .4
_exptl_crystal_size_min          .1
_refine_diff_density_max         0.379
_refine_diff_density_min         -0.313
_refine_diff_density_rms         0.064
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     212
_refine_ls_number_reflns         2171
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0723
_refine_ls_R_factor_gt           0.0594
_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^)+(0.1226P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1553
_refine_ls_wR_factor_ref         0.1692
_reflns_number_gt                1628
_reflns_number_total             2171
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja806663h_si_002.cif
_cod_data_source_block           methylammonium
_cod_database_code               4103755