Accordion and layer-sliding motion to produce anomalous thermal expansion behaviour in 2D-coordination polymers
Lama, Prem; Hazra, Arpan; Barbour, Len; Chemical Communications  (2019) –; doi:10.1039/C9CC06634A

data_7124125
_publ_section_title
;
 Accordion and layer-sliding motion to produce anomalous thermal expansion
 behaviour in 2D-coordination polymers
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC06634A
_journal_year                    2019
_chemical_formula_sum            'C21 H18 N2 O4 Zn'
_chemical_formula_weight         427.74
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2019-08-14 deposited with the CCDC.    2019-09-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.7519(21)
_cell_length_b                   16.2971(30)
_cell_length_c                   19.6460(34)
_cell_measurement_reflns_used    9989
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.00
_cell_measurement_theta_min      2.37
_cell_volume                     3762.6(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0425
_diffrn_reflns_av_unetI/netI     0.0164
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            50805
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        24.998
_diffrn_reflns_theta_max         24.998
_diffrn_reflns_theta_min         2.073
_exptl_absorpt_coefficient_mu    1.336
_exptl_absorpt_correction_T_max  0.885
_exptl_absorpt_correction_T_min  0.465
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.510
_exptl_crystal_description       block
_exptl_crystal_F_000             1760
_exptl_crystal_size_max          0.676
_exptl_crystal_size_mid          0.162
_exptl_crystal_size_min          0.094
_refine_diff_density_max         0.696
_refine_diff_density_min         -0.416
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3306
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.0362
_refine_ls_R_factor_gt           0.0304
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0310P)^2^+6.0267P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0748
_refine_ls_wR_factor_ref         0.0793
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2945
_reflns_number_total             3306
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc06634a3.cif
_cod_data_source_block           1_100K
_cod_original_cell_volume        3762.64(12)
_cod_database_code               7124125
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.465
_shelx_estimated_absorpt_t_max   0.885
_shelx_res_checksum              92800