Two Luminescent Coordination Polymers with a Triple-Helix Structure: HgX2(C31H24N2)·CH2Cl2(X = Cl and Br)
Ciurtin, Delia M.; Pschirer, Neil G.; Smith, Mark D.; Bunz, Uwe H. F.; zur Loye, Hans-Conrad; Chemistry of Materials 13 (2001) 2743–2745; doi:10.1021/cm0103545

data_4000057
_publ_section_title
;
 Two Luminescent Coordination Polymers with a Triple-Helix Structure:
 HgX2(C31H24N2)&#x00B7;CH2Cl2(X = Cl and Br)
;
_journal_coden_ASTM              CMATEX
_journal_issue                   9
_journal_name_full               'Chemistry of Materials'
_journal_page_first              2743
_journal_page_last               2745
_journal_paper_doi               10.1021/cm0103545
_journal_volume                  13
_journal_year                    2001
_chemical_formula_sum            'C32 H26 Cl4 Hg N2'
_chemical_formula_weight         780.94
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 93.890(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.9179(13)
_cell_length_b                   12.7554(11)
_cell_length_c                   16.3222(14)
_cell_measurement_reflns_used    6520
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      24.576
_cell_measurement_theta_min      2.737
_cell_volume                     3098.7(5)
_diffrn_ambient_temperature      183(2)
_diffrn_detector_area_resol_mean ?
_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  0.0525
_diffrn_reflns_av_sigmaI/netI    0.0584
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            20401
_diffrn_reflns_theta_max         26.44
_diffrn_reflns_theta_min         2.03
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    5.336
_exptl_absorpt_correction_T_max  0.5822
_exptl_absorpt_correction_T_min  0.4018
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Bruker, 1997)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.674
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.14
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.992
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     354
_refine_ls_number_reflns         6359
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.992
_refine_ls_R_factor_all          0.0803
_refine_ls_R_factor_gt           0.0502
_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^)+(0.0783P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1274
_refine_ls_wR_factor_ref         0.1391
_reflns_number_gt                4324
_reflns_number_total             6359
_reflns_threshold_expression     >2sigma(I)
_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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               4000057