Complex thermal expansion properties in a molecular honeycomb lattice
Jonathan J. Loughrey; Tim P. Comyn; David C. Apperley; Marc A. Little; Malcolm A. Halcrow; Chem.Commun. 50 (2014) 7601–; doi:10.1039/C4CC02198C

data_7114656
_publ_section_title
;
 Complex thermal expansion properties in a molecular honeycomb lattice
;
_journal_name_full               Chem.Commun.
_journal_page_first              7601
_journal_paper_doi               10.1039/C4CC02198C
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C21 H18 Fe N12, 2[B F4], 3[H2 O]'
_chemical_formula_sum            'C21 H24 B2 F8 Fe N12 O3'
_chemical_formula_weight         721.99
_chemical_name_systematic
; 
Tris[pyrazol-3-ylpyrazine]iron(II) ditetrafluoroborate trihydrate 
;
_space_group_IT_number           159
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 3 -2c'
_symmetry_space_group_name_H-M   'P 3 1 c'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            2
_cell_length_a                   12.6778(7)
_cell_length_b                   12.6778(7)
_cell_length_c                   10.9308(8)
_cell_measurement_reflns_used    21264
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      28.87
_cell_measurement_theta_min      1.85
_cell_volume                     1521.49(16)
_computing_cell_refinement       'APEX 2 software, Bruker Nonius 2004'
_computing_data_collection       'APEX 2 software, Bruker Nonius 2004'
_computing_data_reduction        'SAINT, Bruker Nonius 2004'
_computing_molecular_graphics    'XSEED (Barbour, 2001)'
_computing_publication_material  'local program'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      300(2)
_diffrn_detector_area_resol_mean '120 microns'
_diffrn_measured_fraction_theta_full 0.919
_diffrn_measured_fraction_theta_max 0.919
_diffrn_measurement_device_type  'Bruker X8 Apex diffractometer'
_diffrn_measurement_method       'Rotation images'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0410
_diffrn_reflns_av_sigmaI/netI    0.0225
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            21264
_diffrn_reflns_theta_full        28.87
_diffrn_reflns_theta_max         28.87
_diffrn_reflns_theta_min         1.85
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.592
_exptl_absorpt_correction_T_max  0.863
_exptl_absorpt_correction_T_min  0.726
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G. M. (2002). SADABS v. 2.03. University of 
G/ottingen, Germany.
;
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.576
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             732
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.596
_refine_diff_density_min         -0.411
_refine_diff_density_rms         0.169
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.158
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     139
_refine_ls_number_reflns         2090
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.162
_refine_ls_R_factor_all          0.0447
_refine_ls_R_factor_gt           0.0428
_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^)+(0.0876P)^2^+0.1630P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1191
_refine_ls_wR_factor_ref         0.1219
_reflns_number_gt                2022
_reflns_number_total             2090
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc02198c2.cif
_cod_data_source_block           rs1300ka
_cod_original_sg_symbol_H-M      'P 31c'
_cod_database_code               7114656