Reaction Mechanism Based on X-ray Crystal Structure Analysis during the Solid-State Polymerization of Muconic Esters
Furukawa, Daisuke; Matsumoto, Akikazu; Macromolecules 40 (2007) 6048–; doi:10.1021/ma070802f

data_1505140
_publ_section_title
;
 Reaction Mechanism Based on X-ray Crystal Structure Analysis during the
 Solid-State Polymerization of Muconic Esters
;
_journal_issue                   17
_journal_name_full               Macromolecules
_journal_page_first              6048
_journal_paper_doi               10.1021/ma070802f
_journal_volume                  40
_journal_year                    2007
_chemical_formula_moiety         'C22 H22 O6'
_chemical_formula_sum            'C22 H22 O6'
_chemical_formula_weight         382.40
_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                 101.03(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   36.60(4)
_cell_length_b                   5.488(3)
_cell_length_c                   10.054(13)
_cell_measurement_reflns_used    7452
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.3
_cell_measurement_theta_min      4.1
_cell_volume                     1982(4)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        CrystalStructure
_computing_publication_material  'CrystalStructure 3.8'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.929
_diffrn_measured_fraction_theta_max 0.929
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0643
_diffrn_reflns_av_sigmaI/netI    0.0511
_diffrn_reflns_limit_h_max       46
_diffrn_reflns_limit_h_min       -46
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            6084
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         3.40
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.9900
_exptl_absorpt_correction_T_min  0.9900
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.223
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.322
_refine_diff_density_min         -0.385
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.092
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     129
_refine_ls_number_reflns         2096
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.092
_refine_ls_R_factor_all          0.0751
_refine_ls_R_factor_gt           0.0642
_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^)+(0.1169P)^2^+1.2416P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1773
_refine_ls_wR_factor_ref         0.1947
_reflns_number_gt                1715
_reflns_number_total             2096
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ma070802fsi20070626_070108.cif
_cod_data_source_block           ZZ-MeO
_cod_database_code               1505140